SBCF / Seacoast Banking Corporation of Florida - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Seacoast Banking Corporation of Florida
US ˙ NasdaqGS ˙ US8117078019

Statistik Asas
LEI 549300V6IC06XYQYPG88
CIK 730708
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Seacoast Banking Corporation of Florida
SEC Filings (Chronological Order)
Halaman ini menyediakan senarai kronologi lengkap bagi Pemfailan SEC, tidak termasuk pemfailan pemilikan yang kami sediakan di tempat lain.
September 5, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 5, 2025 SEACOAST BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 5, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

September 5, 2025 EX-99.1

Seacoast Receives Regulatory Approvals for the Acquisition of Villages Bancorporation, Inc.

Seacoast Receives Regulatory Approvals for the Acquisition of Villages Bancorporation, Inc.

September 2, 2025 425

Filed by Seacoast Banking Corporation of Florida, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Villages Bancorp

lettertoshareholders425 Filed by Seacoast Banking Corporation of Florida, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Villages Bancorporation, Inc. Commission File No.: 000-13660 - 1050 Lake Sumter Landing • The Villages, Florida 32162 Tel: 352-751-2144 • Fax:

August 18, 2025 424B3

MERGER PROPOSED — YOUR VOTE IS VERY IMPORTANT

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(3)  Registration No. 333-288902 PROXY STATEMENT/PROSPECTUS MERGER PROPOSED — YOUR VOTE IS VERY IMPORTANT To the Shareholders of Villages Bancorporation, Inc.: On May 29, 2025, Seacoast Banking Corporation of Florida, or Seacoast, Seacoast National Bank, or SNB, Villages Bancorporation, Inc., or VBI, and Citizens First Bank entered into an Agreement

August 15, 2025 EX-99.2

CONSENT OF HOVDE GROUP, LLC

Exhibit 99.2 CONSENT OF HOVDE GROUP, LLC We hereby consent to the inclusion of our opinion letter, dated May 27, 2025, to the board of directors of Villages Bancorporation, Inc., as Appendix B to the proxy statement/prospectus which forms a part of the Registration Statement on Form S-4 of Seacoast Banking Corporation of Florida, and to the references to our name and to the description of such opi

August 15, 2025 S-4/A

As filed with the Securities and Exchange Commission on August 15, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 15, 2025 Registration No.

August 15, 2025 EX-99.1

VILLAGES BANCORPORATION, INC. PROXY FOR SPECIAL MEETING OF SHAREHOLDERS

Exhibit 99.1 VILLAGES BANCORPORATION, INC. PROXY FOR SPECIAL MEETING OF SHAREHOLDERS THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The undersigned shareholder(s) of Villages Bancorporation, Inc., a Florida corporation (the “Company”), hereby revoke(s) any Proxy heretofore given, hereby appoint(s) Steve Kurtz and Jay R. Bartholomew, and each of them, with full power to act alone, the

August 8, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 ☐ TRANSITION REPORT PURS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

July 24, 2025 EX-99.2

EARNINGS PRESENTATION SECOND QUARTER 2025 2025 2SECOND QUARTER 2025 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 2

sbcf2q2025earningspresen EARNINGS PRESENTATION SECOND QUARTER 2025 2025 2SECOND QUARTER 2025 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including,

July 24, 2025 EX-99.1

SEACOAST REPORTS SECOND QUARTER 2025 RESULTS Net Interest Margin Expands 10 Basis Points to 3.58% and Net Interest Income Grows 7% Annualized Loan Growth of 6% with Continuing Strong Pipeline Gains in Return on Average Assets, Return on Tangible Comm

SEACOAST REPORTS SECOND QUARTER 2025 RESULTS Net Interest Margin Expands 10 Basis Points to 3.

July 24, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 24, 2025 SEACOAST BANKING CORP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 24, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

July 23, 2025 S-8

As filed with the Securities and Exchange Commission on July 23, 2025

As filed with the Securities and Exchange Commission on July 23, 2025 File No. 333-               UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 SEACOAST BANKING CORPORATION OF FLORIDA (Exact name of registrant as specified in its charter) Florida 59-2260678 (State or other jurisdiction of incorporation or or

July 23, 2025 EX-FILING FEES

Filing Fee Table.

Calculation of Filing Fee Tables S-4 SEACOAST BANKING CORP OF FLORIDA Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Equity Common stock, par value $0.

July 23, 2025 EX-99.2

Consent of Hovde Group, LLC.

Exhibit 99.2 CONSENT OF HOVDE GROUP, LLC We hereby consent to the inclusion of our opinion letter, dated May 27, 2025, to the board of directors of Villages Bancorporation, Inc., as Appendix C to the proxy statement/prospectus which forms a part of the Registration Statement on Form S-4 of Seacoast Banking Corporation of Florida, and to the references to our name and to the description of such opi

July 23, 2025 EX-10.1

Developer Support Agreement, dated as of July 23, 2025, by and among Seacoast National Bank, The Villages Operating Company, The Villages Development Operating Company, LLC, The Villages Land Holding Company, LLC, The Holding Company of the Villages, Inc., and The Villages Development Holding Company, LLC.

Exhibit 10.1 Execution DEVELOPER SUPPORT AGREEMENT BY AND AMONG the villages operating company, The Villages development operating company, llc, seacoast NATIONAL BANK AND, solely for the limited purposes expressly set forth in Section 5 of this Agreement, The Villages Land Holding Company, LLC Holding Company of the villages, INC. THE VILLAGES DEVELOPMENT HOLDING COMPANY, LLC Table of contents Pa

July 23, 2025 S-4

As filed with the Securities and Exchange Commission on July 23, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on July 23, 2025 Registration No.

July 23, 2025 EX-99.1

Seacoast Banking Corporation of Florida Amended 2021 Incentive Plan

Exhibit 99.1 SEACOAST BANKING CORPORATION OF FLORIDA 2021 INCENTIVE PLAN, AS AMENDED May 6, 2025 SEACOAST BANKING CORPORATION OF FLORIDA 2021 INCENTIVE PLAN ARTICLE 1 PURPOSE 1 1.1 General 1 1.2 History 1 ARTICLE 2 DEFINITIONS 1 2.1 Definitions 1 ARTICLE 3 EFFECTIVE TERM OF PLAN 7 3.1 Effective Date 7 3.2 Term of Plan 7 ARTICLE 4 ADMINISTRATION 7 4.1 Committee 7 4.2 Actions and Interpretations by

July 23, 2025 EX-FILING FEES

Filing Fee Table

Calculation of Filing Fee Tables S-8 SEACOAST BANKING CORP OF FLORIDA Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Common Stock, $0.

July 15, 2025 EX-99.1

Seacoast Completes Acquisition of Heartland Bancshares, Inc. Expands Seacoast’s Presence in Central Florida By Entering Highlands County

Seacoast Completes Acquisition of Heartland Bancshares, Inc. Expands Seacoast’s Presence in Central Florida By Entering Highlands County STUART, Fla., July 11, 2025 - Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) (NASDAQ: SBCF), the holding company for Seacoast National Bank (“Seacoast Bank”), announced today the completion of its acquisition of Heartland Bancshares, Inc. (

July 15, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 11, 2025 SEACOAST BANKING CORP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 11, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

July 11, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 11, 2025 SEACOAST BANKING CORP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 11, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

July 11, 2025 EX-99.1

Seacoast Completes Acquisition of Heartland Bancshares, Inc. Expands Seacoast’s Presence in Central Florida By Entering Highlands County

Seacoast Completes Acquisition of Heartland Bancshares, Inc. Expands Seacoast’s Presence in Central Florida By Entering Highlands County STUART, Fla., July 11, 2025 - Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) (NASDAQ: SBCF), the holding company for Seacoast National Bank (“Seacoast Bank”), announced today the completion of its acquisition of Heartland Bancshares, Inc. (

June 30, 2025 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 o TRANSACTION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR o TRANSACTION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number 000-13660 A. Full title of the pla

June 27, 2025 425

Filed by Seacoast Banking Corporation of Florida, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Villages Bancorp

vbicomm425 Filed by Seacoast Banking Corporation of Florida, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Villages Bancorporation, Inc. Commission File No.: 000-13660 -

June 2, 2025 425

Filed by Seacoast Banking Corporation of Florida Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Heartland Bancshares,

heartlandshareholdercomm Filed by Seacoast Banking Corporation of Florida Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Heartland Bancshares, Inc.

June 2, 2025 425

QUESTIONS AND ANSWERS

Filed by Seacoast Banking Corporation of Florida, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Villages Bancorporation, Inc. Commission File No.: 000-13660 May 30, 2025 Seacoast Banking Corporation of Florida Investor Call to Discuss its Pending Acquisition of

May 29, 2025 EX-99.2

Seacoast Announces the Acquisition of Villages Bancorporation, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint into Attractive Market Known as The Villages Adds a Unique and Valuable Franchise with a Strong Core Deposit Bas

Exhibit 99.2 Seacoast Announces the Acquisition of Villages Bancorporation, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint into Attractive Market Known as The Villages Adds a Unique and Valuable Franchise with a Strong Core Deposit Base and Stable Cost of Funds STUART, Fla., May 29, 2025 - Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) (NASDAQ: SB

May 29, 2025 EX-99.1

Acquisition of Villages Bancorporation, Inc. May 29, 2025 2025

Exhibit 99.1 Acquisition of Villages Bancorporation, Inc. May 29, 2025 2025 2 Cautionary Notice Regarding Forward - Looking Statements This presentation contains “forward - looking statements” within the meaning, and protections, of Section 27 A of the Securities Act of 1933 , as amended, and Section 21 E of the Securities Exchange Act of 1934 , as amended, including, without limitation, statement

May 29, 2025 EX-10.2

Developer Support Agreement, dated as of May 29, 2025, by and among Seacoast National Bank, The Villages Operating Company, The Villages Development Operating Company, LLC, The Villages Land Holding Company, LLC, The Holding Company of the Villages, Inc., and The Villages Development Holding Company, LLC.

Exhibit 10.2   Execution   DEVELOPER SUPPORT AGREEMENT   BY AND AMONG   the villages operating company,   The Villages development operating company, llc,   seacoast NATIONAL BANK   AND,   solely for the limited purposes expressly set forth in Section 5 of this Agreement,   The Villages Land Holding Company, LLC   Holding Company of the villages, INC.   THE VILLAGES DEVELOPMENT HOLDING COMPANY, LL

May 29, 2025 EX-2.1

Agreement and Plan of Merger, dated as of May 29, 2025, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, Villages Bancorporation, Inc. and Citizens First Bank.

  Exhibit 2.1   Execution   AGREEMENT AND PLAN OF MERGER   BY AND AMONG   SEACOAST BANKING CORPORATION OF FLORIDA   SEACOAST NATIONAL Bank   VILLAGES BANCORPORATION, INC.   AND   CITIZENS FIRST BANK   Dated as of May 29, 2025         TABLE OF CONTENTS       Page ARTICLE 1 TRANSACTIONS AND TERMS OF MERGER 1       1.1 Merger 1   1.2 Bank Merger 2   1.3 Time and Place of Closing 2   1.4 Effective Tim

May 29, 2025 EX-10.1

Shareholders Agreement, dated as of May 29, 2025, by and among Seacoast Banking Corporation of Florida, Jennifer Morse Parr, Tracy Morse Dadeo and Mark Morse.

Exhibit 10.1 Execution   SHAREHOLDERS AGREEMENT   This SHAREHOLDERS AGREEMENT (the “Agreement”), dated this 29th day of May, 2025, is by and between Seacoast Banking Corporation of Florida (“Seacoast”), and the shareholders listed on Exhibit A (the “Shareholders,” and collectively, the “Shareholders Group”).   RECITALS   WHEREAS, the respective Boards of Directors of Seacoast and Villages Bancorpo

May 29, 2025 8-K

Entry into a Material Definitive Agreement, Other Events, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 29, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 29, 2025 EX-99.2

Seacoast Announces the Acquisition of Villages Bancorporation, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint into Attractive Market Known as The Villages Adds a Unique and Valuable Franchise with a Strong Core Deposit Bas

Exhibit 99.2 Seacoast Announces the Acquisition of Villages Bancorporation, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint into Attractive Market Known as The Villages Adds a Unique and Valuable Franchise with a Strong Core Deposit Base and Stable Cost of Funds STUART, Fla., May 29, 2025 - Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) (NASDAQ: SB

May 29, 2025 EX-10.2

Developer Support Agreement, dated as of May 29, 2025, by and among Seacoast National Bank, The Villages Operating Company, The Villages Development Operating Company, LLC, The Villages Land Holding Company, LLC, The Holding Company of the Villages, Inc., and The Villages Development Holding Company, LLC.

Exhibit 10.2   Execution   DEVELOPER SUPPORT AGREEMENT   BY AND AMONG   the villages operating company,   The Villages development operating company, llc,   seacoast NATIONAL BANK   AND,   solely for the limited purposes expressly set forth in Section 5 of this Agreement,   The Villages Land Holding Company, LLC   Holding Company of the villages, INC.   THE VILLAGES DEVELOPMENT HOLDING COMPANY, LL

May 29, 2025 EX-10.1

Shareholders Agreement, dated as of May 29, 2025, by and among Seacoast Banking Corporation of Florida, Jennifer Morse Parr, Tracy Morse Dadeo and Mark Morse.

Exhibit 10.1 Execution   SHAREHOLDERS AGREEMENT   This SHAREHOLDERS AGREEMENT (the “Agreement”), dated this 29th day of May, 2025, is by and between Seacoast Banking Corporation of Florida (“Seacoast”), and the shareholders listed on Exhibit A (the “Shareholders,” and collectively, the “Shareholders Group”).   RECITALS   WHEREAS, the respective Boards of Directors of Seacoast and Villages Bancorpo

May 29, 2025 EX-2.1

Agreement and Plan of Merger, dated as of May 29, 2025, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, Villages Bancorporation, Inc. and Citizens First Bank.

  Exhibit 2.1   Execution   AGREEMENT AND PLAN OF MERGER   BY AND AMONG   SEACOAST BANKING CORPORATION OF FLORIDA   SEACOAST NATIONAL Bank   VILLAGES BANCORPORATION, INC.   AND   CITIZENS FIRST BANK   Dated as of May 29, 2025         TABLE OF CONTENTS       Page ARTICLE 1 TRANSACTIONS AND TERMS OF MERGER 1       1.1 Merger 1   1.2 Bank Merger 2   1.3 Time and Place of Closing 2   1.4 Effective Tim

May 29, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 29, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 29, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 29, 2025 EX-99.1

Acquisition of Villages Bancorporation, Inc. May 29, 2025 2025

Exhibit 99.1 Acquisition of Villages Bancorporation, Inc. May 29, 2025 2025 2 Cautionary Notice Regarding Forward - Looking Statements This presentation contains “forward - looking statements” within the meaning, and protections, of Section 27 A of the Securities Act of 1933 , as amended, and Section 21 E of the Securities Exchange Act of 1934 , as amended, including, without limitation, statement

May 22, 2025 EX-3.1

Articles of Amendment to the Amended and Restated Articles of Incorporation (incorporated herein by reference from Exhibit 3.1 to Seacoast’s Form 8-K, filed May 22, 2025).

Exhibit 3.1 ARTICLES OF AMENDMENT TO THE AMENDED AND RESTATED ARTICLES OF INCORPORATION OF SEACOAST BANKING CORPORATION OF FLORIDA Seacoast Banking Corporation of Florida, a corporation organized and existing under the laws of the State of Florida (the “Corporation”), in accordance with the provisions of Section 607.1006 of the Florida Business Corporation Act (the “FBCA”), hereby certifies as fol

May 22, 2025 8-K

Regulation FD Disclosure, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 19, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 16, 2025 424B3

MERGER PROPOSED — YOUR VOTE IS VERY IMPORTANT

TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(3)  Registration No. 333-286394 PROXY STATEMENT/PROSPECTUS MERGER PROPOSED — YOUR VOTE IS VERY IMPORTANT To the Shareholders of Heartland Bancshares, Inc.: On February 27, 2025, Seacoast Banking Corporation of Florida, or Seacoast, Seacoast National Bank, or SNB, Heartland Bancshares, Inc., or Heartland, and Heartland National Bank, or Heartland Ban

May 15, 2025 EX-99.1

Seacoast Receives Regulatory Approvals for the Acquisition of Heartland Bancshares, Inc.

Seacoast Receives Regulatory Approvals for the Acquisition of Heartland Bancshares, Inc.

May 15, 2025 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 14, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 14, 2025 CORRESP

VIA EDGAR FILING AND E-MAIL

May 14, 2025 VIA EDGAR FILING AND E-MAIL U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Attention: Robert Arzonetti Re: Seacoast Banking Corporation of Florida (the “Company”) Registration Statement on Form S-4 (File No. 333-286394), as amended (the “Registration Statement”)— Acceleration Request Ladies and Gentlemen: Pursuant to Rul

May 14, 2025 CORRESP

May 14, 2025

May 14, 2025 Via EDGAR Filing and e-mail U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Attention: Robert Arzonetti Re: Seacoast Banking Corporation of Florida (the “Company”) Registration Statement on Form S-4 (File No. 333-286394), as amended (the “Registration Statement”)—Acceleration Request Ladies and Gentlemen: Pursuant to Rule

May 9, 2025 EX-99.3

Consent of Hovde Group, LLC.

Exhibit 99.3 CONSENT OF HOVDE GROUP, LLC We hereby consent to the inclusion of our opinion letter, dated February 26, 2025, to the Board of Directors of Heartland, as Appendix B to the proxy statement/prospectus which forms a part of the Registration Statement on Form S-4 of Seacoast Banking Corporation of Florida, and to the references to our name and to the description of such opinion in the pro

May 9, 2025 S-4/A

As filed with the Securities and Exchange Commission on May 9, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on May 9, 2025 Registration No.

May 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ TRANSITION REPORT PUR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

May 7, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definit

April 24, 2025 EX-99.1

SEACOAST REPORTS FIRST QUARTER 2025 RESULTS Net Interest Margin Expands Nine Basis Points to 3.48% Annualized Growth in Deposits of 11% and in Loans of 6% Well-Positioned Balance Sheet with Strong Capital and Liquidity

SEACOAST REPORTS FIRST QUARTER 2025 RESULTS Net Interest Margin Expands Nine Basis Points to 3.

April 24, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): April 24, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

April 24, 2025 EX-99.2

EARNINGS PRESENTATION FIRST QUARTER 2025 2025 2FIRST QUARTER 2025 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A

EARNINGS PRESENTATION FIRST QUARTER 2025 2025 2FIRST QUARTER 2025 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, stateme

April 11, 2025 425

Filed by Seacoast Banking Corporation of Florida Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Heartland Bancshares,

heartlandshareholdercomm Filed by Seacoast Banking Corporation of Florida Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Heartland Bancshares, Inc. Commission File No.: 000-13660 -

April 7, 2025 ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

April 7, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant. ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box : ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy Sta

April 4, 2025 EX-99.3

Consent of Hovde Group, LLC.

Exhibit 99.3 CONSENT OF HOVDE GROUP, LLC We hereby consent to the inclusion of our opinion letter, dated February 26, 2025, to the Board of Directors of Heartland, as Appendix B to the proxy statement/prospectus which forms a part of the Registration Statement on Form S-4 of Seacoast Banking Corporation of Florida, and to the references to our name and to the description of such opinion in the pro

April 4, 2025 S-4

As filed with the Securities and Exchange Commission on April 4, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 4, 2025 Registration No.

April 4, 2025 EX-99.1

Form of Common Stock Proxy to be used at Heartland Bancshares, Inc. Special Shareholders Meeting.*

Exhibit 99.1 HEARTLAND BANCSHARES, INC. PROXY FOR SPECIAL MEETING OF SHAREHOLDERS THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The undersigned shareholder(s) of Heartland Bancshares, Inc., a Florida corporation (the “Company”), hereby revoke(s) any Proxy heretofore given, hereby appoint(s) William R. Handley and Lawrence B. Wells, and each of them, with full power to act alone, the

April 4, 2025 EX-99.2

Form of Preferred Stock Proxy to be used at Heartland Bancshares, Inc. Special Shareholders Meeting.*

Exhibit 99.2 HEARTLAND BANCSHARES, INC. PROXY FOR SPECIAL MEETING OF SHAREHOLDERS THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The undersigned shareholder(s) of Heartland Bancshares, Inc., a Florida corporation (the “Company”), hereby revoke(s) any Proxy heretofore given, hereby appoint(s) William R. Handley and Lawrence B. Wells, and each of them, with full power to act alone, the

April 4, 2025 EX-FILING FEES

Filing Fee Table.

Calculation of Filing Fee Tables S-4 SEACOAST BANKING CORP OF FLORIDA Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid 1 Equity Common stock, par value $0.

March 28, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant. ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box : ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy Sta

March 5, 2025 EX-2.1

Agreement and Plan of Merger, dated as of February 27, 2025, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, Heartland Bancshares, Inc. and Heartland National Bank.

EXHIBIT 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL BANK HEARTLAND BANCSHARES, INC. AND HEARTLAND NATIONAL BANK Dated as of February 27, 2025 TABLE OF CONTENTS Page ARTICLE 1 TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 1 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Heartland Capital

March 5, 2025 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 27, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

March 5, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 27, 2025

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 27, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

March 5, 2025 EX-2.1

Agreement and Plan of Merger, dated February 27, 2025 by and among the Company, Seacoast National Bank, Heartland Bancshares, Inc. and Heartland National Bank incorporated herein by reference from Exhibit 2.1 to the Company’s Form 8-K, filed March 5, 2025

EXHIBIT 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL BANK HEARTLAND BANCSHARES, INC. AND HEARTLAND NATIONAL BANK Dated as of February 27, 2025 TABLE OF CONTENTS Page ARTICLE 1 TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 1 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Heartland Capital

March 4, 2025 425

QUESTIONS AND ANSWERS

Filed by Seacoast Banking Corporation of Florida, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Heartland Bancshares, Inc. Commission File No.: 000-13660 This filing amends the Form 425 as filed on March 3, 2025 by Seacoast Banking Corporation of Florida providi

March 3, 2025 425

QUESTIONS AND ANSWERS

Filed by Seacoast Banking Corporation of Florida, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Heartland Bancshares, Inc. Commission File No.: 000-13660 February 28, 2024 Seacoast Banking Corporation of Florida Investor Call to Discuss its Pending Acquisition o

February 28, 2025 EX-99.1

Acquisition of Heartland Bancshares, Inc. February 27, 2025 2025 2ACQUISITION OF HEARTLAND BANCSHARES, INC. Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protect

seacoast-heartlandinves Acquisition of Heartland Bancshares, Inc. February 27, 2025 2025 2ACQUISITION OF HEARTLAND BANCSHARES, INC. Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as ame

February 28, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 27, 2025 SEACOAST BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 27, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

February 28, 2025 EX-99.2

Seacoast Announces the Acquisition of Heartland Bancshares, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint in Central Florida Adds a Seasoned Franchise with a History of High Profitability and Low-Cost Core Deposits

Seacoast Announces the Acquisition of Heartland Bancshares, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint in Central Florida Adds a Seasoned Franchise with a History of High Profitability and Low-Cost Core Deposits STUART, Fla., February 27, 2025 - Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) (NASDAQ: SBCF), the holding company for Seacoast Nat

February 28, 2025 EX-99.1

Seacoast Announces the Acquisition of Heartland Bancshares, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint in Central Florida Adds a Seasoned Franchise with a History of High Profitability and Low-Cost Core Deposits

Seacoast Announces the Acquisition of Heartland Bancshares, Inc. Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint in Central Florida Adds a Seasoned Franchise with a History of High Profitability and Low-Cost Core Deposits STUART, Fla., February 27, 2025 - Seacoast Banking Corporation of Florida (“Seacoast” or the “Company”) (NASDAQ: SBCF), the holding company for Seacoast Nat

February 28, 2025 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 27, 2025 SEACOAST BANKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 27, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

February 28, 2025 EX-99.2

Acquisition of Heartland Bancshares, Inc. February 27, 2025 2025 2ACQUISITION OF HEARTLAND BANCSHARES, INC. Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protect

Acquisition of Heartland Bancshares, Inc. February 27, 2025 2025 2ACQUISITION OF HEARTLAND BANCSHARES, INC. Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without

February 25, 2025 EX-21

Subsidiaries of the Registrant (incorporated herein by reference from Exhibit 21 Seacoast’s Form 10-K, filed on February 25, 2025).

EXHIBIT 21 LIST OF SUBSIDIARIES The Company had the following subsidiaries as of the date of this report: NAME INCORPORATED 1.

February 25, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

February 25, 2025 EX-19

Exhibit 19 Insider Trading Policy

Seacoast Banking Corporation of Florida I Insider Trading Policy Page 1 of 7 SEACOAST BANKING CORPORATION OF FLORIDA INSIDER TRADING POLICY Effective as of January 23, 2025 1.

February 12, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 12, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

February 12, 2025 EX-99.1

INVESTOR PRESENTATION FOURTH QUARTER 2024 2024 2FOURTH QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 2

INVESTOR PRESENTATION FOURTH QUARTER 2024 2024 2FOURTH QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, state

January 27, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): January 27, 2025 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

January 27, 2025 EX-99.2

EARNINGS PRESENTATION FOURTH QUARTER 2024 2024 2FOURTH QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 2

EARNINGS PRESENTATION FOURTH QUARTER 2024 2024 2FOURTH QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, state

January 27, 2025 EX-99.1

SEACOAST REPORTS FOURTH QUARTER AND FULL YEAR 2024 RESULTS Fourth Quarter 2024 Net Interest Margin Expands 22 Basis Points to 3.39% Well-Positioned Balance Sheet with Strong Capital and Liquidity

SEACOAST REPORTS FOURTH QUARTER AND FULL YEAR 2024 RESULTS Fourth Quarter 2024 Net Interest Margin Expands 22 Basis Points to 3.

December 19, 2024 EX-99.1

SEACOAST BANKING CORPORATION OF FLORIDA ANNOUNCES RENEWAL OF SHARE REPURCHASE PROGRAM

SEACOAST BANKING CORPORATION OF FLORIDA ANNOUNCES RENEWAL OF SHARE REPURCHASE PROGRAM STUART, Fla.

December 19, 2024 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 18, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

November 6, 2024 EX-99.1

INVESTOR PRESENTATION THIRD QUARTER 2024 2024 2THIRD QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A

INVESTOR PRESENTATION THIRD QUARTER 2024 2024 2THIRD QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, stateme

November 6, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): November 6, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

November 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

October 24, 2024 EX-99.1

SEACOAST REPORTS THIRD QUARTER 2024 RESULTS Strong Growth in Loans and Deposits Annualized 20% Increase in Tangible Book Value Per Share Well-Positioned Balance Sheet with Strong Capital and Liquidity

SEACOAST REPORTS THIRD QUARTER 2024 RESULTS Strong Growth in Loans and Deposits Annualized 20% Increase in Tangible Book Value Per Share Well-Positioned Balance Sheet with Strong Capital and Liquidity STUART, Fla.

October 24, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): October 24, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

October 24, 2024 EX-99.2

EARNINGS PRESENTATION THIRD QUARTER 2024 2024 2THIRD QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A

EARNINGS PRESENTATION THIRD QUARTER 2024 2024 2THIRD QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, stateme

September 3, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 3, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

September 3, 2024 EX-99.1

INVESTOR PRESENTATION SECOND QUARTER 2024 2024 2SECOND QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 2

INVESTOR PRESENTATION SECOND QUARTER 2024 2024 2SECOND QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, state

August 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 ☐ TRANSITION REPORT PURS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

July 25, 2024 EX-99.2

EARNINGS PRESENTATION SECOND QUARTER 2024 2024 2SECOND QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 2

EARNINGS PRESENTATION SECOND QUARTER 2024 2024 2SECOND QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, state

July 25, 2024 EX-99.1

SEACOAST REPORTS SECOND QUARTER 2024 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Continued Build in Loan Originations and Pipeline, Cost of Deposits Stabilizing Growth in Noninterest Income, and Well-Managed Noninterest Ex

SEACOAST REPORTS SECOND QUARTER 2024 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Continued Build in Loan Originations and Pipeline, Cost of Deposits Stabilizing Growth in Noninterest Income, and Well-Managed Noninterest Expense STUART, Fla.

July 25, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 25, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

June 28, 2024 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 o TRANSACTION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR o TRANSACTION REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number 000-13660 A. Full title of the pla

June 3, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) June 3, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 22, 2024 8-K

Regulation FD Disclosure, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 21, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 8, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 ☐ TRANSITION REPORT PUR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

May 1, 2024 EX-99.1

INVESTOR PRESENTATION FIRST QUARTER 2024 2024 2FIRST QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A

INVESTOR PRESENTATION FIRST QUARTER 2024 2024 2FIRST QUARTER 2024 INVESTOR PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, stateme

May 1, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 1, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

April 25, 2024 EX-99.2

EARNINGS PRESENTATION FIRST QUARTER 2024 2024 2FIRST QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A

EARNINGS PRESENTATION FIRST QUARTER 2024 2024 2FIRST QUARTER 2024 EARNINGS PRESENTATION Cautionary Notice Regarding Forward-Looking Statements This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, stateme

April 25, 2024 EX-99.1

SEACOAST REPORTS FIRST QUARTER 2024 RESULTS Q1 Highlights Included Impressive Growth in Deposits, Successful Completion of Our Expense Initiative, and Building Wealth and Lending Pipelines Strong Capital Position Builds Quarter over Quarter

SEACOAST REPORTS FIRST QUARTER 2024 RESULTS Q1 Highlights Included Impressive Growth in Deposits, Successful Completion of Our Expense Initiative, and Building Wealth and Lending Pipelines Strong Capital Position Builds Quarter over Quarter STUART, Fla.

April 25, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): April 25, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

April 9, 2024 ARS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

April 8, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant. ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box : ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy Sta

February 27, 2024 EX-10.1

Exhibit 10.1 Executive Deferred Compensation Plan*

EXHIBIT 10.1 SEACOAST NATIONAL BANK EXECUTIVE DEFERRED COMPENSATION PLAN (Amended & Restated Effective January 1, 2022) ARTICLE ONE Purpose and Adoption of Plan 1.1 “Introduction” Seacoast National Bank (the “Company”), formerly known as the First National Bank of Treasure Coast, and its affiliates established the Seacoast National Bank Executive Deferred Compensation Plan (the “Plan”), formerly k

February 27, 2024 EX-97.1

Exhibit 97.1 Compensation Recoupment Policy

Seacoast Banking Corporation of Florida I Compensation Recoupment Policy Page 1 of 8 SEACOAST BANKING CORPORATION OF FLORIDA COMPENSATION RECOUPMENT POLICY Effective as of October 2, 2023 1.

February 27, 2024 EX-10.12

Exhibit 10.12 Amended Executive Employment Agreement

1 LEGAL02/43472938v3 AMENDED EXECUTIVE EMPLOYMENT AGREEMENT THIS AMENDED EXECUTIVE EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of the day of , 2023 (the “Effective Date”), by and among Seacoast National Bank (“Seacoast”), and Juliette P.

February 27, 2024 EX-21

Exhibit 21 Subsidiaries of Registrant

EXHIBIT 21 LIST OF SUBSIDIARIES The Company had the following subsidiaries as of the date of this report: NAME INCORPORATED 1.

February 27, 2024 EX-10.13

Exhibit 10.13 Employment Agreement

1 LEGAL02/43472958v3 AMENDED EXECUTIVE EMPLOYMENT AGREEMENT THIS A M E N D E D EXECUTIVE EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered into as of the day of , 2023 (the “Effective Date”), by and among Seacoast National Bank (“Seacoast”), and Austen Carroll (“Employee”).

February 27, 2024 EX-10.2

Exhibit 10.2 Amended and Restated Directors Deferred Compensation Plan*

EXHIBIT 10.2 SEACOAST NATIONAL BANK DIRECTORS’ DEFERRED COMPENSATION PLAN (Amended & Restated Effective January 1, 2022) ARTICLE ONE Purpose and Adoption of Plan 1.1 “Introduction” Seacoast National Bank (the “Company”), formerly known as the First National Bank of Treasure Coast, and its affiliates established the Seacoast National Bank Directors’ Deferred Compensation Plan (the “Plan”), formerly

February 27, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

February 14, 2024 EX-99.1

INVESTOR PRESENTATION FOURTH QUARTER AND FULL YEAR 2023 2FOURTH QUARTER 2023 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended,

INVESTOR PRESENTATION FOURTH QUARTER AND FULL YEAR 2023 2FOURTH QUARTER 2023 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operating res

February 14, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 14, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

February 13, 2024 SC 13G/A

SBCF / Seacoast Banking Corporation of Florida / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01886-seacoastbankingcorpo.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: Seacoast Banking Corp of Florida Title of Class of Securities: Common Stock CUSIP Number: 811707801 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropria

February 9, 2024 SC 13G/A

SBCF / Seacoast Banking Corporation of Florida / Capital World Investors - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* Seacoast Banking Corp. of Florida (Name of Issuer) Common Stock (Title of Class of Securities) 811707801 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appr

February 8, 2024 SC 13G

SBCF / Seacoast Banking Corporation of Florida / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Seacoast Banking Corporation of Florida (Name of Issuer) Common Stock (Title of Class of Securities) 811707801 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the ap

January 30, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): January 29, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

January 25, 2024 EX-99.1

SEACOAST REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Strategic Expense Measures Executed Robust Capital Position Builds Significantly Quarter over Quarter

SEACOAST REPORTS FOURTH QUARTER AND FULL YEAR 2023 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Strategic Expense Measures Executed Robust Capital Position Builds Significantly Quarter over Quarter STUART, Fla.

January 25, 2024 EX-99.2

EARNINGS PRESENTATION FOURTH QUARTER AND FULL YEAR 2023 2023 2FOURTH QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amen

EARNINGS PRESENTATION FOURTH QUARTER AND FULL YEAR 2023 2023 2FOURTH QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operatin

January 25, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) January 25, 2024 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

December 18, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 15, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

December 15, 2023 EX-99.1

SEACOAST BANKING CORPORATION OF FLORIDA ANNOUNCES RENEWAL OF SHARE REPURCHASE PROGRAM

SEACOAST BANKING CORPORATION OF FLORIDA ANNOUNCES RENEWAL OF SHARE REPURCHASE PROGRAM STUART, Fla.

December 15, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 15, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

November 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

November 6, 2023 EX-99.2

Transaction Form.

Exhibit 99.2 SEACOAST BANKING CORPORATION OF FLORIDA DIVIDEND REINVESTMENT AND STOCK PURCHASE PLAN TRANSACTION FORM I hereby request, pursuant to the Seacoast Banking Corporation of Florida (the “Company”) Dividend Reinvestment and Stock Purchase Plan (the “Plan”), the transaction(s) described below. I understand that, by completing and signing this Transaction Form, Continental Stock Transfer & T

November 6, 2023 EX-4.15

Form of Senior Indenture.

Exhibit 4.15 SEACOAST BANKING CORPORATION OF FLORIDA SENIOR DEBT INDENTURE DATED AS OF , 20 WILMINGTON TRUST, NATIONAL ASSOCIATION, AS TRUSTEE TABLE OF CONTENTS Page Number Article I DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.1 Definitions 1 Section 1.2 Other Definitions 4 Section 1.3 Incorporation by Reference of Trust Indenture Act 4 Section 1.4 Rules Of Construction 5 Article II THE

November 6, 2023 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Seacoast Banking Corporation of Florida (Exact Name of Registrant as Specified in its Charter) Table 1.

November 6, 2023 EX-4.17

Form of Subordinated Indenture.

Exhibit 4.17 SEACOAST bANKING CORPORATION OF FLORIDA SUBORDINATED INDENTURE DATED AS OF , 20 WILMINGTON TRUST, NATIONAL ASSOCIATION, AS TRUSTEE TABLE OF CONTENTS Page Number Article I DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.1 Definitions 1 Section 1.2 Other Definitions 5 Section 1.3 Incorporation by Reference of Trust Indenture Act 5 Section 1.4 Rules Of Construction 6 Article II TH

November 6, 2023 EX-25.1

Form T-1 Statement of Eligibility and Qualification under the Trust Indenture Act of 1939 under the Senior Indenture.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 ¨ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON TRUST, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) 16-1486454 (I.R.S. employer identification no.) 1100 North Market Street Wilmington, DE 19890-0001 (Address of principal

November 6, 2023 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3ASR (Form Type) Seacoast Banking Corporation of Florida (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (1) Maximum Aggregate Offering Price (1) Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common stock, $0.

November 6, 2023 EX-99.3

Quick Guide to Seacoast Direct.

Exhibit 99.3 Quick Guide to Seacoast Direct Dividend Reinvestment and Stock Purchase Plan Description of the Plan Seacoast Banking Corporation of Florida (“Seacoast”) offers a convenient and economical way for new investors to make an initial investment in shares of Seacoast common stock (“Common Stock”), and for existing shareholders to increase their holdings in Seacoast, through our Dividend Re

November 6, 2023 S-3ASR

As filed with the U.S. Securities and Exchange Commission on November 6, 2023

As filed with the U.S. Securities and Exchange Commission on November 6, 2023 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 SEACOAST BANKING CORPORATION OF FLORIDA (Exact name of registrant as specified in its charter) Florida 59-2260678 (State or other jurisdiction of incorporation or

November 6, 2023 EX-25.2

Form T-1 Statement of Eligibility and Qualification under the Trust Indenture Act of 1939 under the Subordinated Indenture.

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 ¨ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) WILMINGTON TRUST, NATIONAL ASSOCIATION (Exact name of trustee as specified in its charter) 16-1486454 (I.R.S. employer identification no.) 1100 North Market Street Wilmington, DE 19890-0001 (Address of principal

November 6, 2023 S-3ASR

As filed with the Securities and Exchange Commission on November 6, 2023

As filed with the Securities and Exchange Commission on November 6, 2023 Registration No.

November 6, 2023 EX-99.1

Enrollment Form.

Exhibit 99.1 SEACOAST BANKING CORPORATION OF FLORIDA DIVIDEND REINVESTMENT AND STOCK PURCHASE PLAN ENROLLMENT FORM I hereby request enrollment in the Dividend Reinvestment and Stock Purchase Plan (the “Plan”) of Seacoast Banking Corporation of Florida (the “Company”) pursuant to the terms of enrollment indicated below. I understand that, by completing and signing this Enrollment Form, I will be en

November 2, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): November 2, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

November 2, 2023 EX-99.1

INVESTOR PRESENTATION THIRD QUARTER 2023 2THIRD QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E

INVESTOR PRESENTATION THIRD QUARTER 2023 2THIRD QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operating results, cost savin

October 26, 2023 EX-99.2

EARNINGS PRESENTATION THIRD QUARTER 2023 2023 2THIRD QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section

EARNINGS PRESENTATION THIRD QUARTER 2023 2023 2THIRD QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operating results, cost

October 26, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) October 26, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

October 26, 2023 EX-99.1

SEACOAST REPORTS THIRD QUARTER 2023 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Organic Deposit Growth Highlights Third Quarter Results Robust Capital Position Builds Quarter over Quarter

SEACOAST REPORTS THIRD QUARTER 2023 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Organic Deposit Growth Highlights Third Quarter Results Robust Capital Position Builds Quarter over Quarter STUART, Fla.

September 6, 2023 EX-99.1

INVESTOR PRESENTATION SECOND QUARTER 2023 2SECOND QUARTER 2023 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21

INVESTOR PRESENTATION SECOND QUARTER 2023 2SECOND QUARTER 2023 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company’s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, including Professional Holding Corp.

September 6, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): September 5, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

August 10, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.

August 10, 2023 S-8

As filed with the Securities and Exchange Commission on August 10, 2023

As filed with the Securities and Exchange Commission on August 10, 2023 File No. 333-     UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549       FORM S-8   REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933       SEACOAST BANKING CORPORATION OF FLORIDA (Exact name of registrant as specified in its charter)   Florida   59-2260678 (State or other jurisdiction of incorpora

August 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PURS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

July 27, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) July 27, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

July 27, 2023 EX-99.2

EARNINGS PRESENTATION SECOND QUARTER 2023 2023 2SECOND QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Secti

sbcf2q2023earningspresen EARNINGS PRESENTATION SECOND QUARTER 2023 2023 2SECOND QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company’s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, including Professional Holding Corp.

July 27, 2023 EX-99.1

SEACOAST REPORTS SECOND QUARTER 2023 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Distinctive Deposit Franchise with Granular, Longstanding Customer Base

SEACOAST REPORTS SECOND QUARTER 2023 RESULTS Well-Positioned Balance Sheet with Strong Capital and Liquidity Distinctive Deposit Franchise with Granular, Longstanding Customer Base STUART, Fla.

July 24, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): July 20, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

June 29, 2023 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 o TRANSACTION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR o TRANSACTION REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number 000-13660 A. Full title of the pla

May 23, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 22, 2023 SEACOAST BANKING CORPO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 22, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 23, 2023 EX-99.1

INVESTOR PRESENTATION FIRST QUARTER 2023 2FIRST QUARTER 2023 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E

sbcf1q2023investorpresen INVESTOR PRESENTATION FIRST QUARTER 2023 2FIRST QUARTER 2023 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company’s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, including Professional Holding Corp.

May 10, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ TRANSITION REPORT PUR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

April 27, 2023 EX-99.2

EARNINGS PRESENTATION FIRST QUARTER 2023 2023 2FIRST QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section

sbcf1q2023earningspresen EARNINGS PRESENTATION FIRST QUARTER 2023 2023 2FIRST QUARTER 2023 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company’s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, including Professional Holding Corp.

April 27, 2023 EX-99.1

SEACOAST REPORTS FIRST QUARTER 2023 RESULTS Well-Positioned $15 Billion Balance Sheet with Strong Capital and Liquidity Strong Deposit Franchise with Granular, Longstanding Customer Base Completes Acquisition of Professional Holding Corp.

SEACOAST REPORTS FIRST QUARTER 2023 RESULTS Well-Positioned $15 Billion Balance Sheet with Strong Capital and Liquidity Strong Deposit Franchise with Granular, Longstanding Customer Base Completes Acquisition of Professional Holding Corp.

April 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) April 27, 2023 SEACOAST BANKING CORP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) April 27, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

April 10, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for use of the Commission ☒ Definitive Proxy Statement Only (as permitted by Rule 14(a)-6(

March 31, 2023 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for use of the Commission ☐ Definitive Proxy Statement Only (as permitted by Rule 14(a)-6(

March 16, 2023 8-K/A

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A (Amendment No.

March 6, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): March 6, 2023 SEACOAST BANKING CORP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): March 6, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

March 6, 2023 EX-99.1

INVESTOR PRESENTATION FOURTH QUARTER 2022 2FOURTH QUARTER 2022 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Secu

sbcf0323investordeck INVESTOR PRESENTATION FOURTH QUARTER 2022 2FOURTH QUARTER 2022 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company’s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, including Apollo Bancshares, Inc.

March 1, 2023 EX-21

Exhibit 21 Subsidiaries of Registrant

EXHIBIT 21 LIST OF SUBSIDIARIES The Company had the following subsidiaries as of the date of this report: NAME INCORPORATED 1.

March 1, 2023 EX-10.1

Exhibit 10.1 Executive Deferred Compensation Plan*

EXHIBIT 10.1 SEACOAST NATIONAL BANK EXECUTIVE DEFERRED COMPENSATION PLAN (Amended & Restated Effective January 1, 2022) ARTICLE ONE Purpose and Adoption of Plan 1.1 “Introduction” Seacoast National Bank (the “Company”), formerly known as the First National Bank of Treasure Coast, and its affiliates established the Seacoast National Bank Executive Deferred Compensation Plan (the “Plan”), formerly k

March 1, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File No.

March 1, 2023 EX-10.2

Exhibit 10.2 Amended and Restated Directors Deferred Compensation Plan*

EXHIBIT 10.2 SEACOAST NATIONAL BANK DIRECTORS’ DEFERRED COMPENSATION PLAN (Amended & Restated Effective January 1, 2022) ARTICLE ONE Purpose and Adoption of Plan 1.1 “Introduction” Seacoast National Bank (the “Company”), formerly known as the First National Bank of Treasure Coast, and its affiliates established the Seacoast National Bank Directors’ Deferred Compensation Plan (the “Plan”), formerly

February 14, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): February 14, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

February 14, 2023 EX-99.1

INVESTOR PRESENTATION FOURTH QUARTER 2022 2022 2FOURTH QUARTER 2022 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the

INVESTOR PRESENTATION FOURTH QUARTER 2022 2022 2FOURTH QUARTER 2022 INVESTOR PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company’s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, including Apollo Bancshares, Inc.

February 13, 2023 SC 13G/A

SBCF / Seacoast Banking Corporation of Florida / Capital World Investors - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* Seacoast Banking Corp. of Florida (Name of Issuer) Common Stock (Title of Class of Securities) 811707801 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appr

February 9, 2023 SC 13G/A

SBCF / Seacoast Banking Corporation of Florida / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01855-seacoastbankingcorpo.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4)* Name of issuer: Seacoast Banking Corp. of Florida Title of Class of Securities: Common Stock CUSIP Number: 811707801 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropri

February 1, 2023 EX-99.1

SEACOAST COMPLETES ACQUISITION OF PROFESSIONAL HOLDING CORP. Accelerates Seacoast’s Successful Strategy of Expanding its Presence in the Attractive South Florida Market

SEACOAST COMPLETES ACQUISITION OF PROFESSIONAL HOLDING CORP. Accelerates Seacoast’s Successful Strategy of Expanding its Presence in the Attractive South Florida Market STUART, Fla., January 31, 2023 - Seacoast Banking Corporation of Florida (NASDAQ: SBCF) ("Seacoast" or the "Company"), the holding company for Seacoast National Bank, announced today the completion of its acquisition of Professiona

February 1, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.

February 1, 2023 8-K

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): January 31, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

February 1, 2023 S-8

As filed with the Securities and Exchange Commission on February 1, 2023

As filed with the Securities and Exchange Commission on February 1, 2023 File No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 SEACOAST BANKING CORPORATION OF FLORIDA (Exact name of registrant as specified in its charter) Florida 59-2260678 (State or other jurisdiction of incorporation or organization)

January 27, 2023 EX-99.1

SEACOAST REPORTS FOURTH QUARTER AND FULL YEAR 2022 RESULTS Fourth Quarter 2022 Net Interest Margin Expands to 4.36%, Up 69 Basis Points from Prior Quarter Completes Acquisitions of Apollo Bancshares, Inc. and Drummond Banking Company Well-Positioned

SEACOAST REPORTS FOURTH QUARTER AND FULL YEAR 2022 RESULTS Fourth Quarter 2022 Net Interest Margin Expands to 4.

January 27, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) January 26, 2023 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

January 27, 2023 EX-99.2

EARNINGS PRESENTATION FOURTH QUARTER 2022 2022 2FOURTH QUARTER 2022 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the

EARNINGS PRESENTATION FOURTH QUARTER 2022 2022 2FOURTH QUARTER 2022 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company’s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, including Apollo Bancshares, Inc.

December 28, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 28, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

December 16, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): December 15, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

December 16, 2022 EX-99.1

SEACOAST BANKING CORPORATION OF FLORIDA ANNOUNCES RENEWAL OF SHARE REPURCHASE PROGRAM

SEACOAST BANKING CORPORATION OF FLORIDA ANNOUNCES RENEWAL OF SHARE REPURCHASE PROGRAM STUART, Fla.

December 9, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 9, 2022

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 9, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

December 9, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 9, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

November 14, 2022 424B3

PROPOSED MERGER — YOUR VOTE IS VERY IMPORTANT

424B3 1 tm2226714-7424b3.htm 424B3 TABLE OF CONTENTS  Filed Pursuant to Rule 424(b)(3)  Registration No. 333-267739 PROXY STATEMENT/PROSPECTUS PROPOSED MERGER — YOUR VOTE IS VERY IMPORTANT To the Shareholders of Professional Holding Corp.: On August 7, 2022, Seacoast Banking Corporation of Florida, or Seacoast, Seacoast National Bank, or SNB, Professional Holding Corp., or Professional, and Profes

November 10, 2022 EX-99.1

Form of Proxy to be used at Professional Holding Corp. Special Shareholders Meeting.

Exhibit 99.1 1UPX Using a black ink pen, mark your votes with an Xas shown in this example.Please do not write outside the designated areas. 03PR1D ++Please sign exactly as name(s) appears hereon. Joint owners should each sign. When signing as attorney, executor, administrator, corporate officer, trustee, guardian, or custodian, please give full title.Signature 1 ? Please keep signature within the

November 10, 2022 EX-99.3

Consent of Stephens Inc.

EX-99.3 8 tm2226714d5ex99-3.htm EXHIBIT 99.3 Exhibit 99.3 CONSENT OF STEPHENS INC. We hereby consent to the inclusion of our opinion letter to the Board of Directors of Professional Holding Corp. (the “Company”) as an Appendix to the Proxy Statement/Prospectus relating to the proposed merger of the Company with and into Seacoast Banking Corporation of Florida. contained in the Registration Stateme

November 10, 2022 EX-99.2

Consent of Piper Sandler & Co.

Exhibit 99.2 1251 AVENUE OF THE AMERICAS, 6TH FLOOR NEW YORK, NY 10020 P 212 466-7800 | TF 800 635-6851 Piper Sandler & Co. Since 1885. Member SIPC and NYSE. CONSENT OF PIPER SANDLER & CO. We hereby consent to the inclusion of our opinion letter to the Board of Directors of Seacoast Banking Corporation of Florida (the ?Company?) as an Appendix to the Proxy Statement/Prospectus relating to the prop

November 10, 2022 S-4/A

As filed with the Securities and Exchange Commission on November 10, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 10, 2022 Registration No.

November 10, 2022 CORRESP

November 10, 2022

November 10, 2022 Via EDGAR Filing and e-mail U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Attention: Jessica Livingston Re: Seacoast Banking Corporation of Florida (the ?Company?) Registration Statement on Form S-4 (File No. 333-267739), as amended (the ?Registration Statement?)?Acceleration Request Ladies and Gentlemen: Pursuant

November 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ☐ TRANSITION REPORT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

October 31, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): October 31, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

October 31, 2022 EX-99.1

EARNINGS PRESENTATION THIRD QUARTER 2022 2022 2THIRD QUARTER 2022 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the S

EARNINGS PRESENTATION THIRD QUARTER 2022 2022 2THIRD QUARTER 2022 EARNINGS PRESENTATION This presentation contains ?forward-looking statements? within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company?s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, or expects to acquire, including Apollo Bancshares, Inc.

October 27, 2022 EX-99.2

EARNINGS PRESENTATION THIRD QUARTER 2022 2022 2THIRD QUARTER 2022 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the S

EARNINGS PRESENTATION THIRD QUARTER 2022 2022 2THIRD QUARTER 2022 EARNINGS PRESENTATION This presentation contains ?forward-looking statements? within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company?s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, or expects to acquire, including Apollo Bancshares, Inc.

October 27, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) October 27, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

October 27, 2022 EX-99.1

SEACOAST REPORTS THIRD QUARTER 2022 RESULTS Significant Expansion in Net Interest Margin and Net Interest Income Highlight Q3 Results Well-Positioned Balance Sheet with Strong Capital and Liquidity

SEACOAST REPORTS THIRD QUARTER 2022 RESULTS Significant Expansion in Net Interest Margin and Net Interest Income Highlight Q3 Results Well-Positioned Balance Sheet with Strong Capital and Liquidity STUART, Fla.

October 11, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate 0.

October 11, 2022 S-8

As filed with the Securities and Exchange Commission on October 11, 2022

S-8 1 tm2227919d1s8.htm FORM S-8 As filed with the Securities and Exchange Commission on October 11, 2022 File No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 SEACOAST BANKING CORPORATION OF FLORIDA (Exact name of registrant as specified in its charter) Florida 59-2260678 (State or other jurisdiction

October 7, 2022 EX-99.1

SEACOAST COMPLETES ACQUISITIONS OF APOLLO BANCSHARES, INC. AND DRUMMOND BANKING COMPANY Seacoast Bank Expands Presence in Miami-Dade County and Enters Ocala and Gainesville

SEACOAST COMPLETES ACQUISITIONS OF APOLLO BANCSHARES, INC. AND DRUMMOND BANKING COMPANY Seacoast Bank Expands Presence in Miami-Dade County and Enters Ocala and Gainesville STUART, Fla., October 7, 2022 - Seacoast Banking Corporation of Florida (NASDAQ: SBCF) ("Seacoast" or the "Company"), the holding company for Seacoast National Bank, announced today the completion of its acquisitions of Apollo

October 7, 2022 8-K

Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): October 7, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

October 4, 2022 EX-FILING FEES

Calculation of Filing Fee Tables Form S-4 (Form Type) Seacoast Banking Corporation of Florida (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

EX-FILING FEES Calculation of Filing Fee Tables Form S-4 (Form Type) Seacoast Banking Corporation of Florida (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common stock, par value $0.

October 4, 2022 S-4

As filed with the Securities and Exchange Commission on October 4, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on October 4, 2022 Registration No.

October 4, 2022 EX-99.2

Consent of Piper Sandler & Co.

Exhibit 99.2 1251 AVENUE OF THE AMERICAS, 6TH FLOOR NEW YORK, NY 10020 P 212 466-7800 | TF 800 635-6851 Piper Sandler & Co. Since 1885. Member SIPC and NYSE. CONSENT OF PIPER SANDLER & CO. We hereby consent to the inclusion of our opinion letter to the Board of Directors of Seacoast Banking Corporation of Florida (the ?Company?) as an Appendix to the Proxy Statement/Prospectus relating to the prop

October 4, 2022 EX-99.3

Consent of Stephens Inc.

Exhibit 99.3 CONSENT OF STEPHENS INC. We hereby consent to the inclusion of our opinion letter to the Board of Directors of Professional Holding Corp. (the ?Company?) as an Appendix to the Proxy Statement/Prospectus relating to the proposed merger of the Company with and into Seacoast Banking Corporation of Florida. contained in the Registration Statement on Form S-4, as filed with the Securities

September 1, 2022 424B3

MERGER PROPOSED — YOUR VOTE IS VERY IMPORTANT

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(3)? ?Registration No. 333-265988? PROXY STATEMENT/PROSPECTUS ? ? ? ? MERGER PROPOSED???YOUR VOTE IS VERY IMPORTANT To the Shareholders of Drummond Banking Company: On May 4, 2022, Seacoast Banking Corporation of Florida, or Seacoast, Seacoast National Bank, or SNB, Drummond Banking Company, or Drummond, and Drummond Community Bank, or Drummond Bank

August 30, 2022 EX-99.1

Form of Proxy to be used at Drummond Banking Company Special Shareholders Meeting.

Exhibit 99.1 DRUMMOND BANKING COMPANY PROXY FOR SPECIAL MEETING OF SHAREHOLDERS THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The undersigned shareholder(s) of Drummond Banking Company, a Florida corporation (the ?Company?), hereby revoke(s) any Proxy heretofore given, hereby appoint(s) Luther Drummond and Gray Drummond, and each of them, with full power to act alone, the true and la

August 30, 2022 CORRESP

August 30, 2022

August 30, 2022 Via EDGAR Filing and e-mail U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Attention: Jessica Livingston Re: Seacoast Banking Corporation of Florida (the ?Company?) Registration Statement on Form S-4 (File No. 333-265988), as amended (the ?Registration Statement?)?Acceleration Request Ladies and Gentlemen: Pursuant to

August 30, 2022 S-4/A

As filed with the Securities and Exchange Commission on August 30, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 30, 2022 Registration No.

August 11, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 7, 2022

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 7, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

August 11, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 7, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

August 11, 2022 EX-2.1

Agreement and Plan of Merger

Exhibit 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL Bank PROFESSIONAL HOLDING CORP. AND PROFESSIONAL BANK Dated as of August 7, 2022 TABLE OF CONTENTS Page Preamble 1 ARTICLE 1 ? TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 1 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Professional C

August 11, 2022 EX-2.1

Agreement and Plan of Merger, dated as of August 7, 2022, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, Professional Holding Corp. and Professional Bank

Exhibit 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL Bank PROFESSIONAL HOLDING CORP. AND PROFESSIONAL BANK Dated as of August 7, 2022 TABLE OF CONTENTS Page Preamble 1 ARTICLE 1 ? TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 1 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Professional C

August 11, 2022 424B3

MERGER PROPOSED — YOUR VOTE IS VERY IMPORTANT

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(3)? ?Registration No. 333-265213? JOINT PROXY STATEMENT/PROSPECTUS ? ? ? ? MERGER PROPOSED???YOUR VOTE IS VERY IMPORTANT To the Shareholders of Apollo Bancshares, Inc. and Apollo Bank: On March 29, 2022, Seacoast Banking Corporation of Florida, or Seacoast, Seacoast National Bank, or SNB, Apollo Bancshares, Inc., or Apollo, and Apollo Bank entered i

August 10, 2022 EX-99.2

Form of Proxy to be used at Apollo Bank Special Shareholders Meeting

Exhibit 99.2 APOLLO BANK PROXY FOR SPECIAL MEETING OF SHAREHOLDERS THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The undersigned shareholder(s) of Apollo Bank, a Florida state-chartered bank (the ?Bank?), hereby revoke(s) any Proxy heretofore given, hereby appoints Matthew L. Adler and Carlos M. Modia, and each of them, with full power to act alone, the true and lawful attorneys-in-f

August 10, 2022 S-4/A

As filed with the Securities and Exchange Commission on August 10, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on August 10, 2022 Registration No.

August 10, 2022 EX-99.1

Form of Proxy to be used at Apollo Bancshares, Inc. Special Shareholders Meeting.

Exhibit 99.1 APOLLO BANCSHARES, INC. PROXY FOR SPECIAL MEETING OF SHAREHOLDERS THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS The undersigned shareholder(s) of Apollo Bancshares, Inc., a Florida corporation (the ?Company?), hereby revoke(s) any Proxy heretofore given, hereby appoints Matthew L. Adler and Carlos M. Modia, and each of them, with full power to act alone, the true and law

August 10, 2022 CORRESP

August 10, 2022

August 10, 2022 Via EDGAR Filing and e-mail U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington, D.C. 20549 Attention: Jessica Livingston Re: Seacoast Banking Corporation of Florida (the ?Company?) Registration Statement on Form S-4 (File No. 333-265213), as amended (the ?Registration Statement?)?Acceleration Request Ladies and Gentlemen: Pursuant to

August 8, 2022 EX-99.1

Investor Presentation August 8, 2022 Acquisition of Professional Holding Corp. This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities

Investor Presentation August 8, 2022 Acquisition of Professional Holding Corp. This presentation contains ?forward-looking statements? within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, econom

August 8, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): August 8, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

August 8, 2022 EX-99.2

Seacoast Announces Agreement to Acquire Professional Holding Corp. Accelerates Seacoast’s Successful Strategy of Expanding its Presence in the Attractive South Florida Market

Seacoast Announces Agreement to Acquire Professional Holding Corp. Accelerates Seacoast?s Successful Strategy of Expanding its Presence in the Attractive South Florida Market STUART, FLA., August 8, 2022 - Seacoast Banking Corporation of Florida (?Seacoast?) (NASDAQ: SBCF), the holding company for Seacoast National Bank (?Seacoast Bank?), and Professional Holding Corp. ("Professional?) (NASDAQ: PF

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ☐ TRANSITION REPORT PURS

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

July 28, 2022 EX-99.2

EARNINGS PRESENTATION SECOND QUARTER 2022 2022 2SECOND QUARTER 2022 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the

EARNINGS PRESENTATION SECOND QUARTER 2022 2022 2SECOND QUARTER 2022 EARNINGS PRESENTATION This presentation contains ?forward-looking statements? within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company?s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, or expects to acquire, including Apollo Bancshares, Inc.

July 28, 2022 EX-99.1

SEACOAST REPORTS SECOND QUARTER 2022 RESULTS Record Commercial Loan Originations, Strong Growth in Demand Deposits, and Significant Expansion in Net Interest Margin Highlight Q2 Results Well-Positioned Balance Sheet with Strong Capital and Liquidity

SEACOAST REPORTS SECOND QUARTER 2022 RESULTS Record Commercial Loan Originations, Strong Growth in Demand Deposits, and Significant Expansion in Net Interest Margin Highlight Q2 Results Well-Positioned Balance Sheet with Strong Capital and Liquidity STUART, Fla.

July 28, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) July 28, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

July 1, 2022 EX-99.2

Consent of Hovde Group, LLC.

EX-99.2 5 tm2219039d1ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 CONSENT OF HOVDE GROUP, LLC We hereby consent to the inclusion of our opinion letter, dated May 3, 2022, to the Board of Directors of Drummond Banking Company, as Appendix B to the proxy statement/prospectus which forms a part of the Registration Statement on Form S-4 of Seacoast Banking Corporation of Florida, and to the references to our

July 1, 2022 EX-FILING FEES

Filing Fee Table

EX-FILING FEES Calculation of Filing Fee Tables Form S-4 (Form Type) Seacoast Banking Corporation of Florida (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common stock, par value $0.

July 1, 2022 S-4

As filed with the Securities and Exchange Commission on July 1, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on July 1, 2022 Registration No.

June 29, 2022 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 o TRANSACTION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR o TRANSACTION REPORT PURSUANT TO SECTION 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission File Number 000-13660 A. Full title of the pla

May 25, 2022 EX-FILING FEES

Filing Fee Table

EX-FILING FEES Calculation of Filing Fee Tables Form S-4 (Form Type) Seacoast Banking Corporation of Florida (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial effective date Filing Fee Previously Paid In Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to Be Paid Equity Common stock, par value $0.

May 25, 2022 S-4

Power of Attorney

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on May 25, 2022 Registration No.

May 25, 2022 EX-99.3

Consent of Keefe, Bruyette & Woods, Inc.

Exhibit 99.3 CONSENT OF KEEFE, BRUYETTE & WOODS, INC. We hereby consent to the inclusion of our opinion letter to (i) the Board of Directors (the ?Board?) of Apollo Bancshares Inc. (?Apollo?) and (ii) the Board of Apollo Bank, as Appendix C to the proxy statement/prospectus/consent solicitation statement which forms a part of the Registration Statement on Form S-4 filed on the date hereof (the ?Re

May 24, 2022 EX-99.1

First Quarter 2022 INVESTOR PRESENTATION 20 22 This presentation contains “forward‐looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including

First Quarter 2022 INVESTOR PRESENTATION 20 22 This presentation contains ?forward?looking statements? within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company?s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, or expects to acquire, including Apollo Bancshares, Inc.

May 24, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) May 24, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 10, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 4, 2022

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 4, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 10, 2022 EX-2.1

Agreement and Plan of Merger

Exhibit 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL Bank DRUMMOND BANKING COMPANY AND DRUMMOND COMMUNITY BANK Dated as of May 4, 2022 TABLE OF CONTENTS Page Preamble 1 ARTICLE 1 ? TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 1 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Drummond Comm

May 10, 2022 EX-2.1

Agreement and Plan of Merger, dated as of May 4, 2022, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, Drummond Banking Company and Drummond Community Bank

Exhibit 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL Bank DRUMMOND BANKING COMPANY AND DRUMMOND COMMUNITY BANK Dated as of May 4, 2022 TABLE OF CONTENTS Page Preamble 1 ARTICLE 1 ? TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 1 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Drummond Comm

May 10, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 4, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 6, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 ☐ TRANSITION REPORT PUR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to .

May 5, 2022 EX-99.2

Seacoast Announces the Acquisition of Drummond Banking Company Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint into North Florida Adds a Seasoned 32-year-old Franchise with a Strong History of Profitability and Low-Cost Core Dep

EX-99.2 3 sbcfpressrelease20220504.htm EX-99.2 Seacoast Announces the Acquisition of Drummond Banking Company Continues Seacoast’s Successful M&A Strategy, Expanding its Footprint into North Florida Adds a Seasoned 32-year-old Franchise with a Strong History of Profitability and Low-Cost Core Deposits STUART, Fla., May 4, 2022 - Seacoast Banking Corporation of Florida (“Seacoast”) (NASDAQ: SBCF),

May 5, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): May 4, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 5, 2022 EX-99.1

Investor Presentation May 4, 2022 Acquisition of Drummond Banking Company 20 22 This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securitie

Investor Presentation May 4, 2022 Acquisition of Drummond Banking Company 20 22 This presentation contains ?forward-looking statements? within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, economic and seasonal conditions in the Company?s markets, and improvements to reported earnings that may be realized from cost controls, tax law changes, new initiatives and for integration of banks that the Company has acquired, or expects to acquire, including Apollo Bancshares, Inc.

April 29, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported) April 28, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

April 29, 2022 EX-99.1

SEACOAST REPORTS FIRST QUARTER 2022 RESULTS Disciplined Loan Growth, Strong Deposit Growth, and Rising Net Interest Margin Highlight Q1 Results Well-Positioned Balance Sheet with Strong Capital and Liquidity

EX-99.1 2 a1q2022earningsrelease.htm EX-99.1 SEACOAST REPORTS FIRST QUARTER 2022 RESULTS Disciplined Loan Growth, Strong Deposit Growth, and Rising Net Interest Margin Highlight Q1 Results Well-Positioned Balance Sheet with Strong Capital and Liquidity STUART, Fla., April 28, 2022 /GLOBE NEWSWIRE/ - Seacoast Banking Corporation of Florida ("Seacoast" or the "Company") (NASDAQ: SBCF) today reported

April 29, 2022 EX-99.2

EARNINGS PRESENTATION FIRST QUARTER 2022 2022 2FIRST QUARTER 2022 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the S

EX-99.2 3 sbcf1q2022earningspresen.htm EX-99.2 EARNINGS PRESENTATION FIRST QUARTER 2022 2022 2FIRST QUARTER 2022 EARNINGS PRESENTATION This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and op

April 12, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for use of the Commission x Definitive Proxy Statement Only (as permitted by Rule 14(a)-6(

April 1, 2022 425

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 29, 2022

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 29, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

April 1, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 29, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

April 1, 2022 EX-2.1

Agreement and Plan of Merger, dated as of March 29, 2022, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, Apollo Bancshares, Inc. and Apollo Bank

Exhibit 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL Bank APOLLO BANCSHARES, INC. AND APOLLO BANK Dated as of March 29, 2022 TABLE OF CONTENTS Page Preamble 1 ARTICLE 1 ? TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 2 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Apollo Common Stock 2 1

April 1, 2022 EX-2.1

Agreement and Plan of Merger, dated as of March 29, 2022, by and among Seacoast Banking Corporation of Florida, Seacoast National Bank, Apollo Bancshares, Inc. and Apollo Bank

Exhibit 2.1 Execution AGREEMENT AND PLAN OF MERGER BY AND AMONG SEACOAST BANKING CORPORATION OF FLORIDA SEACOAST NATIONAL Bank APOLLO BANCSHARES, INC. AND APOLLO BANK Dated as of March 29, 2022 TABLE OF CONTENTS Page Preamble 1 ARTICLE 1 ? TRANSACTIONS AND TERMS OF MERGER 1 1.1 Merger 1 1.2 Bank Merger 2 1.3 Time and Place of Closing 2 1.4 Effective Time 2 1.5 Conversion of Apollo Common Stock 2 1

March 30, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of report (Date of earliest event reported): March 29, 2022 SEACOAST BANKING CORPORATION OF FLORIDA (Exact Name of Registrant as Specified in Charter) Florida 000-13660 59-2260678 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

March 30, 2022 EX-99.1

Investor Presentation March 29, 2022 Acquisition of Apollo Bancshares, Inc. 20 22 This presentation contains “forward-looking statements” within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securit

Investor Presentation March 29, 2022 Acquisition of Apollo Bancshares, Inc. 20 22 This presentation contains ?forward-looking statements? within the meaning, and protections, of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements about future financial and operating results, cost savings, enhanced revenues, eco

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