CBT / Cabot Corporation - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Cabot Corporation
US ˙ NYSE ˙ US1270551013

Statistik Asas
LEI K05C0SER542GQ6VLRO68
CIK 16040
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 Cabot Corporation
SEC Filings (Chronological Order)
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August 5, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 4, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 4, 2025 Cabot Corporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 4, 2025 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Numb

August 4, 2025 EX-99.1

CABOT CORP REPORTS THIRD QUARTER FISCAL 2025 RESULTS Diluted Earnings Per Share (“EPS”) of $1.86 and Adjusted EPS of $1.90

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORP REPORTS THIRD QUARTER FISCAL 2025 RESULTS Diluted Earnings Per Share (“EPS”) of $1.86 and Adjusted EPS of $1.90 BOSTON (August 4, 2025)- Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2025. Q3 FY25 Key Highlights  Diluted EPS of $1.86 and Adjusted EPS of $1.90, which represents a 1%

June 20, 2025 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Form 11-K Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ☒ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2024 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from      to     . Commission file number (of issuer): 1-5667 A.

June 3, 2025 8-K

Regulation FD Disclosure, 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): May 30, 2025 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

June 3, 2025 EX-99.1

Cabot Corporation Announces Executive Vice President and President, Reinforcement Materials Segment Hobart C. Kalkstein to Retire and Matthew Wood appointed Senior Vice President and President, Reinforcement Materials Segment

Exhibit 99.1 Contact:   Vanessa Craigie Corporate Communications    (617) 342-6015 Cabot Corporation Announces Executive Vice President and President, Reinforcement Materials Segment Hobart C. Kalkstein to Retire and Matthew Wood appointed Senior Vice President and President, Reinforcement Materials Segment BOSTON –(BUSINESS WIRE)-June 3, 2025- Cabot Corporation (NYSE: CBT) today announced that Ho

June 3, 2025 EX-10.1

Transition Agreement, dated May 30, 2025, between Cabot Corporation and Hobart C. Kalkstein

Exhibit 10.1 TRANSITION AGREEMENT THIS TRANSITION AGREEMENT (this “Agreement”) is entered into as of the 30th day of May, 2025, by and between Cabot Corporation (“Cabot” or the “Company”) and Hobart C. Kalkstein (“Kalkstein”). WHEREAS, in connection with his anticipated retirement from Cabot, Kalkstein has provided Cabot his resignation as Cabot’s Executive Vice President, effective June 15, 2025

May 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

May 7, 2025 EX-10.3

Exhibit 10.3 Form of Time-Based Restricted Stock Unit Award Certificate under the Cabot Corporation 2025 Long-Term Incentive Plan.

EXHIBIT 10.3 TSU Award Agmt (ee in Severance plan) 3.13.25 Cabot Corporation 2025 Long-Term Incentive Plan Time-Based Restricted Stock Unit Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company”), subject to the terms provided herein and in the 2025 Long-Term Incentive Plan (as amended from time to time, the “2025 Plan”), of the number

May 7, 2025 EX-10.4

Exhibit 10.4 Form of Stock Option Award Certificate under the Cabot Corporation 2025 Long-Term Incentive Plan.

EXHIBIT 10.4 CABOT CORPORATION 2025 LONG-TERM INCENTIVE PLAN Form of Stock Option Award Certificate (ee in severance plan) [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company” or “Cabot”), subject to the terms provided herein and in the 2025 Long-Term Incentive Plan (as amended from time to time, the “2025 Plan”), of stock options to purchase the numbe

May 7, 2025 EX-10.2

Exhibit 10.2 Form of Performance-Based Restricted Stock Unit Award Certificate under the Cabot Corporation 2025 Long-Term Incentive Plan.

EXHIBIT 10.2 PSU Award Agmt (ee in Severance plan) 3.13.25 Cabot Corporation 2025 Long-Term Incentive Plan Performance-Based Restricted Stock Unit Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company”), subject to the terms provided herein and in the 2025 Long-Term Incentive Plan (as amended from time to time, the “2025 Plan”), of the

May 6, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 5, 2025 Cabot Corporation (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 5, 2025 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Number)

May 6, 2025 EX-99.1

CABOT CORP REPORTS SECOND QUARTER FISCAL 2025 RESULTS Diluted earnings per share (“EPS”) of $1.69 and Adjusted EPS of $1.90

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORP REPORTS SECOND QUARTER FISCAL 2025 RESULTS Diluted earnings per share (“EPS”) of $1.69 and Adjusted EPS of $1.90 BOSTON (May 5, 2025)- Cabot Corporation (NYSE: CBT) today announced results for its second quarter of fiscal year 2025. Key Highlights  Diluted EPS of $1.69 and Adjusted EPS of $1.90 which represents a 7% increase

April 7, 2025 S-8 POS

As filed with the U.S. Securities and Exchange Commission on April 7, 2025

As filed with the U.S. Securities and Exchange Commission on April 7, 2025 Registration Nos. 333-255782 333-216707 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-255782 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-216707 UNDER THE SECURITIES ACT OF 1933 CABOT CORPORATION

April 7, 2025 S-8

As filed with the U.S. Securities and Exchange Commission on April 7, 2025

As filed with the U.S. Securities and Exchange Commission on April 7, 2025 Registration No. 333-    UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.R.S.

April 7, 2025 S-8 POS

As filed with the U.S. Securities and Exchange Commission on April 7, 2025

As filed with the U.S. Securities and Exchange Commission on April 7, 2025 Registration Nos. 333-255782 333-216707 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-255782 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-216707 UNDER THE SECURITIES ACT OF 1933 CABOT CORPORATION

April 7, 2025 EX-FILING FEES

Calculation of Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Cabot Corporation (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 (2)  Maximum Aggregate Offering Price (2) Fee Rate Amount of Registration Fee (2) Equity Common Stock, $1.

March 18, 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): March 13, 2025 CABOT CORPORATION (E

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 13, 2025 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

February 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

February 4, 2025 EX-99.1

CABOT CORP REPORTS FIRST QUARTER FISCAL 2025 RESULTS Diluted earnings per share (“EPS”) of $1.67 and Adjusted EPS of $1.76

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORP REPORTS FIRST QUARTER FISCAL 2025 RESULTS Diluted earnings per share (“EPS”) of $1.67 and Adjusted EPS of $1.76 BOSTON (February 3, 2025)- Cabot Corporation (NYSE: CBT) today announced results for its first quarter of fiscal year 2025. Key Highlights  Diluted EPS of $1.67 and Adjusted EPS of $1.76 which represents a 13% incre

February 4, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 3, 2025 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Nu

January 24, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) 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 permitte

January 24, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☒    Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commissio

December 4, 2024 EX-99.2

Q&A CABOT Appendix CABOT

Exhibit 99.2 CABOT INVESTOR DAY December 4, 2024 Safe Harbor Statement This presentation contains forward-looking statements based on management’s current expectations, estimates and projections. All statements that address expectations or projections about the future, including statements about the Company’s strategy for growth, the future growth rates of our businesses including expected adjuste

December 4, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 4, 2024 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Nu

December 4, 2024 EX-99.1

Cabot Corporation Highlights Growth Strategy and 3-Year Financial Targets at Investor Day

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 Cabot Corporation Highlights Growth Strategy and 3-Year Financial Targets at Investor Day BOSTON (December 4, 2024)- Cabot Corporation (NYSE: CBT) today hosts its 2024 Investor Day in Boston, MA. Sean Keohane, President and Chief Executive Officer, and other members of Cabot’s executive management team, will provide an in-depth review of

November 20, 2024 EX-19

Cabot Corporation Policy on Transactions in Securities.

Exhibit 19 CABOT CORPORATION POLICY ON TRANSACTIONS IN SECURITIES (Adopted by Cabot’s Board of Directors on March 11, 2005, and as amended through September 15, 2023) 1.

November 20, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 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 Commission File Number 1-5667 Cabot Corporation (Exact nam

November 20, 2024 EX-21

Subsidiaries of Cabot Corporation.

Exhibit 21 Subsidiaries of Cabot Corporation (as of September 30, 2024)* Subsidiary State/Jurisdiction of Incorporation Cabot Argentina S.

November 20, 2024 EX-97

Cabot Corporation Policy for Recoupment of Incentive Compensation.

Exhibit 97 CABOT CORPORATION POLICY FOR RECOUPMENT OF INCENTIVE COMPENSATION 1. Introduction In accordance with Section 10D of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and the regulations thereunder, the Board of Directors (the “Board”) of Cabot Corporation (the “Company”) has adopted a policy (the “Policy”) providing for the Company’s recoupment of certain incentive-b

November 4, 2024 EX-99.1

CABOT CORP REPORTS FOURTH QUARTER AND FISCAL YEAR 2024 RESULTS Fourth Quarter 2024 Diluted earnings per share (“EPS”) of $2.43 and Adjusted EPS of $1.80 Fiscal Year 2024 Diluted EPS of $6.72 and Adjusted EPS of $7.06

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORP REPORTS FOURTH QUARTER AND FISCAL YEAR 2024 RESULTS Fourth Quarter 2024 Diluted earnings per share (“EPS”) of $2.43 and Adjusted EPS of $1.80 Fiscal Year 2024 Diluted EPS of $6.72 and Adjusted EPS of $7.06 BOSTON (November 4, 2024)- Cabot Corporation (NYSE: CBT) today announced results for its fourth quarter and fiscal year 20

November 4, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 4, 2024 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Nu

August 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 5, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 5, 2024 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Numb

August 5, 2024 EX-99.1

CABOT CORP REPORTS THIRD QUARTER FISCAL 2024 RESULTS Diluted earnings per share (“EPS”) of $1.94 and Adjusted EPS of $1.92

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORP REPORTS THIRD QUARTER FISCAL 2024 RESULTS Diluted earnings per share (“EPS”) of $1.94 and Adjusted EPS of $1.92 BOSTON (August 5, 2024)- Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2024. Key Highlights  Diluted EPS of $1.94 and Adjusted EPS of $1.92, which represents a 35% increa

July 12, 2024 EX-99.1

CABOT CORPORATION ANNOUNCES ELECTION OF THIERRY VANLANCKER TO BOARD OF DIRECTORS

Exhibit 99.1 Investor Contact: Steve Delahunt     (617) 342-6255 CABOT CORPORATION ANNOUNCES ELECTION OF THIERRY VANLANCKER TO BOARD OF DIRECTORS Boston - July 12, 2024 - Cabot Corporation (NYSE: CBT) announced today that Thierry Vanlancker has been elected to its Board of Directors, effective July 12, 2024. He was also appointed a member of the Audit Committee of the Board of Directors, effective

July 12, 2024 8-K

Current Report

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 12, 2024 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

June 27, 2024 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Form 11-K Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ☒ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from       to      . Commission file number (of issuer): 1-5667 A

May 9, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

May 6, 2024 EX-99.1

CABOT CORP REPORTS SECOND QUARTER FISCAL 2024 RESULTS Diluted earnings per share (“EPS”) of $1.49 and Adjusted EPS of $1.78

Exhibit 99.1 CABOT CORP REPORTS SECOND QUARTER FISCAL 2024 RESULTS Diluted earnings per share (“EPS”) of $1.49 and Adjusted EPS of $1.78 BOSTON (May 6, 2024)- Cabot Corporation (NYSE: CBT) today announced results for its second quarter of fiscal year 2024. Key Highlights • Diluted EPS of $1.49 and adjusted EPS of $1.78, which represents a 34% increase in Adjusted EPS as compared to the same quarte

May 6, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 6, 2024 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Number)

March 29, 2024 S-8

As filed with the U.S. Securities and Exchange Commission on March 29, 2024

As filed with the U.S. Securities and Exchange Commission on March 29, 2024 Registration No. 333-    UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.R.S

March 29, 2024 EX-FILING FEES

Calculation of Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Cabot Corporation (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 (2) Maximum Aggregate Offering Price (2) Fee Rate Amount of Registration Fee (2) Equity Common Stock, $1.

March 13, 2024 8-K

Current Report

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 7, 2024 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

February 13, 2024 SC 13G/A

CBT / Cabot Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Cabot Corp Title of Class of Securities: Common Stock CUSIP Number: 127055101 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

February 9, 2024 SC 13G/A

CBT / Cabot Corporation / WELLINGTON MANAGEMENT GROUP LLP - 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. 2 )* Cabot Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 127055101 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

February 8, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

February 5, 2024 EX-99.1

Cabot Corp Reports First Quarter Fiscal 2024 Results

Exhibit 99.1 Cabot Corp Reports First Quarter Fiscal 2024 Results Diluted earnings per share (“EPS”) of $0.88 and Adjusted EPS of $1.56 BOSTON-(BUSINESS WIRE)-February 5, 2024-Cabot Corporation (NYSE: CBT) today announced results for its first quarter of fiscal year 2024. Key Highlights Reinforcement Materials segment EBIT of $129 million; up 37% compared to the same quarter in the prior year Perf

February 5, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 5, 2024 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

January 26, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 b

January 26, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 b

December 15, 2023 EX-25.1

Form T-1 Statement of Eligibility of Trustee under the Trust Indenture Act of 1939, as amended, of U.S. Bank Trust Company, National Association, filed herewith.

Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036 I.R.S. E

December 15, 2023 S-3ASR

As filed with the Securities and Exchange Commission on December 15, 2023

Table of Contents As filed with the Securities and Exchange Commission on December 15, 2023 Registration No.

December 15, 2023 EX-FILING FEES

Calculation of Filing Fee Table, filed herewith.

Exhibit 107 Calculation of Filing Fee Tables Form S-3ASR (Form Type) Cabot Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities 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, $1.

November 22, 2023 EX-10.(H)

Form of Amendment of outstanding Time-Based Restricted Stock Units, Performance-Based Restricted Stock Units and Stock Options issued under the Cabot Corporation Amended and Restated 2017 Long-Term Incentive Plan.

Exhibit 10(h) Cabot Corporation AMENDED AND RESTATED 2017 Long-Term Incentive Plan NOTICE OF AMENDED AWARD TERMS You are receiving this notice (the “Notice”) because you currently hold outstanding grants of stock options (“Options”), time-based restricted stock units (“TSUs”), and/or performance-based restricted stock units (“PSUs”, and together with the Options and TSUs, the “Outstanding Awards”) under the Company’s Amended and Restated 2017 Long-Term Incentive Plan (as amended from time to time, the “2017 Plan”).

November 22, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 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 Commission File Number 1-5667 Cabot Corporation (Exact nam

November 22, 2023 EX-10.(A)(III)

Amendment No. 3, dated as of October 4, 2023, to Credit Agreement dated as of August 6, 2021, by and among Cabot Corporation, the designated borrowers, the lenders party thereto, and the Administrative Agent.

Exhibit 10(a)(iii) EXECUTION COPY AMENDMENT NO. 3 Dated as of September 20, 2023 to CREDIT AGREEMENT Dated as of August 6, 2021 THIS AMENDMENT NO. 3 (this “Amendment”) is made as of September 20, 2023 by and among Cabot Corporation, a Delaware corporation (the “Company”), the Lenders party hereto and JPMorgan Chase Bank, N.A., in its capacity as administrative agent for the Lenders (the “Administr

November 22, 2023 EX-10.(K)

Form of Stock Option Award Certificate under the Cabot Corporation Amended and Restated 2017 Long-Term Incentive Plan.

Exhibit 10(k) CABOT CORPORATION AMENDED AND RESTATED 2017 LONG-TERM INCENTIVE PLAN Stock Option Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company” or “Cabot”), subject to the terms provided herein and in the Amended and Restated 2017 Long-Term Incentive Plan (as amended from time to time, the “2017 Plan”), of stock options to purchase the number of shares of common stock of Cabot set forth in the table below (such stock options referred to as your “Award”).

November 22, 2023 EX-21

Subsidiaries of Cabot Corporation.

Exhibit 21 Subsidiaries of Cabot Corporation (as of September 30, 2023) Subsidiary State/Jurisdiction of Incorporation Cabot Argentina S.

November 22, 2023 EX-10.(J)

Form of Performance-Based Restricted Stock Unit Award Certificate under the Cabot Corporation Amended and Restated 2017 Long-Term Incentive Plan.

Exhibit 10(j) Cabot Corporation AMENDED AND RESTATED 2017 Long-Term Incentive Plan Performance-Based Restricted Stock Unit Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company”), subject to the terms provided herein and in the Amended and Restated 2017 Long-Term Incentive Plan (as amended from time to time, the “2017 Plan”), of the number of performance-based Restricted Stock Units set forth in the table below (such units referred to as the “PSUs” or your “Award”).

November 22, 2023 EX-10.(I)

Form of Time-Based Restricted Stock Unit Award Certificate under the Cabot Corporation Amended and Restated 2017 Long-Term Incentive Plan.

Exhibit 10(i) Cabot Corporation AMENDED AND RESTATED 2017 Long-Term Incentive Plan Time-Based Restricted Stock Unit Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company”), subject to the terms provided herein and in the Amended and Restated 2017 Long-Term Incentive Plan (as amended from time to time, the “2017 Plan”), of the number of time-based Restricted Stock Units set forth in the table below (such units referred to as the “TSUs” or your “Award”).

November 6, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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, 2023 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

November 6, 2023 EX-99.1

Cabot Corp Reports Fourth Quarter Diluted EPS of $4.10 and Adjusted EPS of $1.65

Exhibit 99.1 Cabot Corp Reports Fourth Quarter Diluted EPS of $4.10 and Adjusted EPS of $1.65 Fiscal Year 2023 Diluted EPS of $7.73 and Adjusted EPS of $5.38 BOSTON-(BUSINESS WIRE)-November 6, 2023-Cabot Corporation (NYSE: CBT) today announced results for its fourth quarter and fiscal year 2023. Key Highlights Fiscal Year 2023 Diluted EPS of $7.73 and Adjusted EPS of $5.38; record fiscal year Rein

September 15, 2023 EX-99.1

CABOT CORPORATION ANNOUNCES CHANGES TO BOARD OF DIRECTORS

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORPORATION ANNOUNCES CHANGES TO BOARD OF DIRECTORS Boston - September 15, 2023 - Cabot Corporation (NYSE: CBT) announced today that Michelle Williams, Ph.D., has been elected to its Board of Directors, effective September 13, 2023. She was also appointed a member of the Audit Committee of the Board of Directors, effective Septembe

September 15, 2023 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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 13, 2023 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

August 8, 2023 EX-3.2

The By-laws of Cabot Corporation as amended May 11, 2023 (incorporated herein by reference to Exhibit 3.2 of Cabot’s Corporation’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2023, file reference 1-5667, filed with the SEC on August 8, 2023).

Exhibit 3.2 BY-LAWS OF CABOT CORPORATION (As Amended through May 11, 2023) Section 1. LAW, CERTIFICATE OF INCORPORATION AND BY-LAWS 1.1 These by-laws are subject to the certificate of incorporation of the corporation. In these by-laws, references to law, the certificate of incorporation and by-laws mean all applicable law, the provisions of the certificate of incorporation of the corporation and t

August 8, 2023 EX-10.3

Credit Agreement, dated as of May 17, 2023, among certain subsidiaries of Cabot Corporation, guaranteed by Cabot Corporation, PNC Bank, National Association, ING Bank. N.V., Dublin branch, U.S. Bank National Association, and Mizuho Bank, Ltd.

Exhibit 10.3 EXECUTION COPY €300,000,000 CREDIT AGREEMENT dated as of May 18, 2023, by and among CABOT CORPORATION, as the Company and the Guarantor, Cabot Luxembourg TC S.a.r.l., LUXEMBOURG, SCHAFFHAUSEN Branch, Cabot Switzerland Gmbh, PT Cabot Indonesia, CERTAIN OTHER SUBSIDIARIES OF THE COMPANY FROM TIME TO TIME PARTY HERETO, as the Borrowers, The Lenders referred to herein, as Lenders, and PNC

August 8, 2023 EX-10.2

Amendment No. 2, dated as of July 27, 2023, to Credit Agreement dated as of August 6, 2021, by and among Cabot Corporation, the designated borrowers, the lenders party thereto, and the Administrative Agent (incorporated herein by reference to Exhibit 10.2 of Cabot’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2023, file reference 1-5667, filed with the SEC on August 8, 2023).

Exhibit 10.2 EXECUTION COPY AMENDMENT NO. 2 Dated as of July 27, 2023 to CREDIT AGREEMENT Dated as of August 6, 2021 THIS AMENDMENT NO. 2 (this “Amendment”) is made as of July 27, 2023 by and among Cabot Corporation, a Delaware corporation (the “Company”), the Lenders party hereto and JPMorgan Chase Bank, N.A., in its capacity as administrative agent for the Lenders (the “Administrative Agent”), u

August 8, 2023 EX-10.1

Amendment No. 1, dated as of April 21, 2023, to Credit Agreement dated as of August 6, 2021, by and among Cabot Corporation, the designated borrowers, the lenders party thereto, and the Administrative Agent (incorporated herein by reference to Exhibit 10.1 of Cabot’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2023, file reference 1-5667, filed with the SEC on August 8, 2023).

Exhibit 10.1 EXECUTION COPY AMENDMENT NO. 1 Dated as of April 21, 2023 to CREDIT AGREEMENT Dated as of August 6, 2021 THIS AMENDMENT NO. 1 (this “Amendment”) is made as of April 21, 2023 by and among Cabot Corporation, a Delaware corporation (the “Company”), the Lenders party hereto and JPMorgan Chase Bank, N.A., in its capacity as administrative agent for the Lenders (the “Administrative Agent”),

August 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 7, 2023 EX-99.1

Cabot Corp Reports Third Quarter Fiscal 2023 Results

Exhibit 99.1 Cabot Corp Reports Third Quarter Fiscal 2023 Results Diluted earnings per share (“EPS”) of $1.43 and Adjusted EPS of $1.42 BOSTON-(BUSINESS WIRE)-August 7, 2023-Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2023. Key Highlights Third quarter Diluted EPS of $1.43; Adjusted EPS of $1.42 Record Reinforcement Materials segment EBIT in the third

August 7, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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, 2023 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File N

June 22, 2023 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

11-K Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

May 24, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of (Commissio

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of (Commission File Number) (I.

May 24, 2023 EX-1.01

CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2022 to December 31, 2022

EX-1.01 2 d498421dex101.htm EX-1.01 Exhibit 1.01 CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2022 to December 31, 2022 Cabot Corporation has included this Conflict Minerals Report as an exhibit to its Form SD for calendar year 2022, as provided for in Rule 13p-1 under the Securities Exchange Act of 1934, as amended (collectively, the “Conflict Minerals Rule”

May 15, 2023 EX-3.1

The By-laws of Cabot Corporation as amended May 11, 2023 (incorporated herein by reference to Exhibit 3.1 of Cabot Corporation’s Current Report on Form 8-K, file reference 1-5667, filed with the SEC on May 15, 2023).

EX-3.1 Exhibit 3.1 BY-LAWS OF CABOT CORPORATION (As Amended through January 7May 11, 20212023) Section 1. LAW, CERTIFICATE OF INCORPORATION AND BY-LAWS 1.1 These by-laws are subject to the certificate of incorporation of the corporation. In these by-laws, references to law, the certificate of incorporation and by-laws mean theall applicable law, the provisions of the certificate of incorporation o

May 15, 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 11, 2023 CABOT CORPORATION (Exa

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 11, 2023 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

May 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

May 8, 2023 EX-99.1

Cabot Corp Reports Second Quarter Fiscal 2023 Results

Exhibit 99.1 Cabot Corp Reports Second Quarter Fiscal 2023 Results Diluted earnings per share (“EPS”) of $1.29 and Adjusted EPS of $1.33 BOSTON-(BUSINESS WIRE)-May 8, 2023-Cabot Corporation (NYSE: CBT) today announced results for its second quarter of fiscal year 2023. Key Highlights Record Reinforcement Materials segment EBIT in the second fiscal quarter of $122 million, up 21% year-over-year Cas

May 8, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 8, 2023 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Numb

March 14, 2023 8-K

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): March 9, 2023 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

February 9, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 9, 2023 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

February 9, 2023 SC 13G/A

CBT / Cabot Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Cabot Corp. Title of Class of Securities: Common Stock CUSIP Number: 127055101 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

February 9, 2023 EX-99.1

Cabot Corp Reports First Quarter Fiscal 2023 Results

Exhibit 99.1 Cabot Corp Reports First Quarter Fiscal 2023 Results Diluted earnings per share (“EPS”) of $0.93 and Adjusted EPS of $0.98 BOSTON-(BUSINESS WIRE)-February 9, 2023-Cabot Corporation (NYSE: CBT) today announced results for its first quarter of fiscal year 2023. Key Highlights First quarter results in line with expectations; adjusted EPS of $0.98 and diluted EPS of $0.93 Reinforcement Ma

February 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

February 6, 2023 SC 13G/A

CBT / Cabot Corp / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Cabot Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 127055101 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

January 26, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 b

January 26, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEF 14A 1 d260764ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confi

November 23, 2022 EX-21

Subsidiaries of Cabot Corporation.

Exhibit 21 Subsidiaries of Cabot Corporation (as of September 30, 2022)* Subsidiary State/Jurisdiction of Incorporation Cabot Argentina S.

November 23, 2022 EX-10

Form of Indemnification Agreement (incorporated herein by reference to Exhibit 10(k) of Cabot’s Annual Report on Form 10-K for its fiscal year ended September 30, 2022, file reference 1-5667, filed with the SEC on November 23, 2022).

Exhibit 10(k) INDEMNIFICATION AGREEMENT This Indemnification Agreement (?Agreement?) is made and entered into as of this [ ] day of [?], 2022, by and between Cabot Corporation, a Delaware corporation (the ?Company?), and [] (?Indemnitee?).

November 23, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 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 Commission File Number 1-5667 Cabot Corporation (Exact nam

November 8, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 7, 2022 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

November 8, 2022 EX-99.1

Cabot Corp Reports Fourth Quarter Diluted EPS of $1.64 and Adjusted EPS of $1.55

Exhibit 99.1 Cabot Corp Reports Fourth Quarter Diluted EPS of $1.64 and Adjusted EPS of $1.55 Fiscal Year 2022 Diluted EPS of $3.62 and Record Adjusted EPS of $6.28 BOSTON-(BUSINESS WIRE)-November 7, 2022-Cabot Corporation (NYSE: CBT) today announced results for its fourth quarter and fiscal year 2022. Key Highlights Fiscal fourth quarter Diluted EPS increased 228% and Adjusted EPS increased 40% y

August 8, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File N

August 8, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 8, 2022 EX-99.1

Cabot Corp Reports Third Quarter Fiscal 2022 Results

Exhibit 99.1 Cabot Corp Reports Third Quarter Fiscal 2022 Results Strong Diluted EPS of $1.69 and Record Adjusted EPS of $1.73 BOSTON-(BUSINESS WIRE)-August 8, 2022-Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2022. Key Highlights 14% increase in Diluted EPS and a 28% increase in Adjusted EPS year-over-year Record Reinforcement Materials segment EBIT r

June 23, 2022 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ? Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2021 or ? Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to . Commission file number (of issuer): 1-5667 A. Full title of the p

June 22, 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): June 22, 2022 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

June 22, 2022 EX-4.1

Indenture, dated June 22, 2022, between Cabot Corporation and U.S. Bank Trust Company, National Association.

Exhibit 4.1 CABOT CORPORATION AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION As Trustee Indenture Dated as of June 22, 2022 Debt Securities TABLE OF CONTENTS ARTICLE One Definitions and Incorporation By Reference 1 Section 1.01. Definitions 1 Section 1.02. Other Definitions 3 Section 1.03. Incorporation by Reference of Trust Indenture Act 3 Section 1.04. Rules of Construction 4 ARTICLE Two The

June 22, 2022 EX-4.2

First Supplemental Indenture, dated June 22, 2022, between Cabot Corporation and U.S. Bank Trust Company, National Association, including the form of Global Note attached as Annex A thereto.

Exhibit 4.2 CABOT CORPORATION First Supplemental Indenture Dated as of June 22, 2022 5.000% Notes due 2032 (First Supplemental Indenture to the Indenture dated as of June 22, 2022) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee FIRST SUPPLEMENTAL INDENTURE, dated as of June 22, 2022 (the ?First Supplemental Indenture?), between Cabot Corporation, a Delaware corporation (herein called th

June 8, 2022 EX-1.1

Underwriting Agreement, dated June 7, 2022, by and among Cabot Corporation, J.P. Morgan Securities LLC, Mizuho Securities USA LLC and U.S. Bancorp Investments, Inc., as representatives of the several underwriters named in Schedule 1 thereto.

Exhibit 1.1 Execution Version CABOT CORPORATION $400,000,000 5.000% Senior Notes due 2032 Underwriting Agreement June 7, 2022 J.P. Morgan Securities LLC Mizuho Securities USA LLC U.S. Bancorp Investments, Inc. As Representatives of the several Underwriters listed in Schedule 1 hereto c/o J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 c/o Mizuho Securities USA LLC 1271 Avenu

June 8, 2022 EX-99.1

Information Relating to Part II.

Exhibit 99.1 Information Relating to Part II. Item 14. Other Expenses of Issuance and Distribution The expenses in connection with the offer and sale by Cabot Corporation of $400 million aggregate principal amount of 5.00% notes due 2032, registered pursuant to an automatically effective shelf registration statement on Form S-3ASR (Registration No. 333-236374) that was filed with the Securities an

June 8, 2022 424B2

$400,000,000 Cabot Corporation 5.000% Senior Notes due 2032

Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-236374 PROSPECTUS SUPPLEMENT (To prospectus dated February 11, 2020) $400,000,000 Cabot Corporation 5.000% Senior Notes due 2032 We are offering $400,000,000 aggregate principal amount of our 5.000% Senior Notes due 2032, which we refer to as the ?notes.? The notes will mature on June 30, 2032. Interest will accrue on the notes from J

June 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): June 7, 2022 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

June 8, 2022 EX-FILING FEES

Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Cabot Corporation (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 Fo

Exhibit 107 Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Cabot Corporation (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 Debt 5.

June 7, 2022 FWP

Cabot Corporation Pricing Term Sheet $400,000,000 5.000% Senior Notes due 2032 Issuer: Cabot Corporation Security Type: Senior Unsecured Notes Principal Amount: $400,000,000 Maturity Date: June 30, 2032 Coupon: 5.000% Price to Public: 99.330% Yield t

Issuer Free Writing Prospectus, dated June 7, 2022 Filed pursuant to Rule 433 under the Securities Act of 1933 Supplementing the Preliminary Prospectus Supplement, dated June 7, 2022 Registration Statement No.

June 7, 2022 424B2

Subject to Completion, dated June 7, 2022

Table of Contents This preliminary prospectus supplement relates to an effective registration statement but is not complete and may be changed.

May 27, 2022 EX-1.01

CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2021 to December 31, 2021

Exhibit 1.01 CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2021 to December 31, 2021 Cabot Corporation has included this Conflict Minerals Report as an exhibit to its Form SD for calendar year 2021, as provided for in Rule 13p-1 under the Securities Exchange Act of 1934, as amended (collectively, the ?Conflict Minerals Rule?). The date of filing of this Confli

May 27, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of incorporat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.

May 12, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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 12, 2022 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

May 12, 2022 EX-99.1

CABOT CORPORATION ANNOUNCES ELECTION OF RAFFIQ NATHOO TO BOARD OF DIRECTORS

Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORPORATION ANNOUNCES ELECTION OF RAFFIQ NATHOO TO BOARD OF DIRECTORS Boston - May 12, 2022 - Cabot Corporation (NYSE: CBT) announced today that Raffiq Nathoo has been elected to its Board of Directors, effective May 12, 2022. He was also appointed a member of the Audit Committee of the Board of Directors, effective May 12, 2022. S

May 9, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? 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 Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

May 2, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 2, 2022 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 2, 2022 EX-99.1

Cabot Corp Reports Second Quarter Fiscal 2022 Results

Exhibit 99.1 Cabot Corp Reports Second Quarter Fiscal 2022 Results Strong Diluted EPS of $1.84 and Record Adjusted EPS of $1.69 BOSTON-(BUSINESS WIRE)-May 2, 2022-Cabot Corporation (NYSE: CBT) today announced results for its second quarter of fiscal year 2022. Key Highlights Record segment EBIT results for the fiscal quarter in both Reinforcement Materials and Performance Chemicals driving a 42% i

April 14, 2022 CORRESP

T +1 617 345 0100 | F +1 617 342 6103 | cabotcorp.com

Cabot Corporation Two Seaport Lane Suite 1400 Boston, MA 02210-2019 United States April 14, 2022 VIA EDGAR U.

March 18, 2022 CORRESP

T +1 617 345 0100 | F +1 617 342 6103 | cabotcorp.com

Cabot Corporation Two Seaport Lane Suite 1400 Boston, MA 02210-2019 United States March 18, 2022 VIA EDGAR U.

March 15, 2022 8-K

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): March 10, 2022 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

February 9, 2022 SC 13G/A

CBT / Cabot Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Cabot Corp. Title of Class of Securities: Common Stock CUSIP Number: 127055101 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 13

February 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

Ay UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

February 4, 2022 SC 13G

CBT / Cabot Corp / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Cabot Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 127055101 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedu

January 31, 2022 EX-99.1

Cabot Corp Reports First Quarter Fiscal 2022 Results

Exhibit 99.1 Cabot Corp Reports First Quarter Fiscal 2022 Results Diluted loss per share of $1.57 and Adjusted EPS of $1.29 BOSTON-(BUSINESS WIRE)-January 31, 2022-Cabot Corporation (NYSE: CBT) today announced results for its first quarter of fiscal year 2022. Key Highlights Strong EBIT results of $85 million in Reinforcement Materials and $52 million in Performance Chemicals Positive outcome from

January 31, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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, 2022 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

January 27, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

DEF 14A 1 d205397ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confi

January 27, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 b

December 2, 2021 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): December 2, 2021 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

December 2, 2021 EX-99.2

Safe Harbor Statement This presentation contains forward‐looking statements based on management’s current expectations, estimates and projections. Allstatements that address expectations or projections about the future, including statements about the

Exhibit 99.2 Cabot Investor Day December 2, 2021 Safe Harbor Statement This presentation contains forward?looking statements based on management?s current expectations, estimates and projections. Allstatements that address expectations or projections about the future, including statements about the Company?s strategy for growth, the future growthrates of our businesses and for our TM Battery Mater

December 2, 2021 EX-99.1

Cabot Corporation Highlights Growth Strategy and 3-Year Financial Targets at Investor Day

Exhibit 99.1 Steve Delahunt Investor Relations [email protected] (617) 342-6255 Cabot Corporation Highlights Growth Strategy and 3-Year Financial Targets at Investor Day BOSTON ? Dec. 2, 2021 ? Cabot Corporation (NYSE: CBT) will host its 2021 Investor Day today in Boston, MA. Sean Keohane, President and Chief Executive Officer, and other members of the executive team, will provide an in

November 29, 2021 EX-21

Subsidiaries of Cabot Corporation.

Exhibit 21 Subsidiaries of Cabot Corporation (as of September 30, 2021) Subsidiary State/Jurisdiction of Incorporation Cabot Argentina S.

November 29, 2021 EX-10.(B)

Amended and Restated Credit Agreement, dated as of October 19, 2021, among certain subsidiaries of Cabot Corporation, guaranteed by Cabot Corporation, Wells Fargo Bank, National Association, PNC Bank, National Association, U.S. Bank National Association, Mizuho Bank, Ltd., and the other lenders party thereto.

Exhibit 10(b) Execution Version ?300,000,000 AMENDED AND RESTATED CREDIT AGREEMENT dated as of October 19, 2021, by and among CABOT CORPORATION, as the Company and the Guarantor, Cabot Luxembourg TC S.

November 29, 2021 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 September 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-5667 Cabot Corporation (Exact nam

November 8, 2021 EX-99.1

Cabot Corp Reports Fourth Quarter Diluted EPS of $0.50 and Adjusted EPS of $1.11

Exhibit 99.1 Cabot Corp Reports Fourth Quarter Diluted EPS of $0.50 and Adjusted EPS of $1.11 Fiscal Year 2021 Diluted EPS of $4.34 and Adjusted EPS of $5.02 BOSTON-(BUSINESS WIRE)-November 8, 2021-Cabot Corporation (NYSE: CBT) today announced results for its fourth quarter and full fiscal year 2021. Key Highlights GAAP EPS of $4.34 and record full year Adjusted EPS of $5.02 driven by record Reinf

November 8, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 8, 2021 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

August 9, 2021 EX-99.1

Cabot Corp Reports Third Quarter Fiscal 2021 Results

Exhibit 99.1 Cabot Corp Reports Third Quarter Fiscal 2021 Results Strong Diluted EPS of $1.48 and Adjusted EPS of $1.35 BOSTON-(BUSINESS WIRE)-August 9, 2021-Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2021. Key Highlights GAAP EPS of $1.48, compared to a loss of $0.12 in the prior fiscal year third quarter. Adjusted EPS of $1.35, compared to a loss o

August 9, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 9, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 9, 2021 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File N

August 9, 2021 EX-10.1

Credit Agreement, dated August 6, 2021, among Cabot Corporation, JPMorgan Chase Bank, N.A., J.P. Morgan Securities LLC, Citibank, N.A., Bank of America, N.A., Mizuho Bank, Ltd., TD Bank, N.A., and Wells Fargo Bank, National Association, and the other lenders party thereto (incorporated herein by reference to Exhibit 10.1 of Cabot’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021, file reference 1-5667, filed with the SEC on August 9, 2021).

Exhibit 10.1 EXECUTION COPY CREDIT AGREEMENT dated as of August 6, 2021, among CABOT CORPORATION and Certain of its Subsidiaries, as Borrowers, The Lenders Party Hereto and JPMORGAN CHASE BANK, N.A., as Lead Left Bookrunner and Administrative Agent JPMORGAN CHASE BANK, N.A., and CITIBANK, N.A., as Joint Lead Arrangers and Joint Bookrunners, CITIBANK, N.A., as Syndication Agent MIZUHO BANK, LTD., T

July 12, 2021 SC 13G/A

CBT / Cabot Corp / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Cabot Corp. Title of Class of Securities: Common Stock CUSIP Number: 127055101 Date of Event Which Requires Filing of this Statement: June 30, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??Rule 13d-1(

June 24, 2021 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ? Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2020 or ? Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to . Commission file number (of issuer): 1-5667 A. Full title of the plan and the addres

May 26, 2021 EX-1.01

CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2020 to December 31, 2020

EX-1.01 2 d160619dex101.htm EX-1.01 Exhibit 1.01 CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2020 to December 31, 2020 Cabot Corporation has included this Conflict Minerals Report as an exhibit to its Form SD for calendar year 2020, as provided for in Rule 13p-1 under the Securities Exchange Act of 1934, as amended (collectively, the “Conflict Minerals Rule”

May 26, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of incorporat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.

May 5, 2021 S-8

- S-8

As filed with the U.S. Securities and Exchange Commission on May 5, 2021 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.R.S. Empl

May 5, 2021 EX-10.1

Amended and Restated 2017 Long-Term Incentive Plan.

Exhibit 10.1 CABOT CORPORATION AMENDED AND RESTATED 2017 LONG-TERM INCENTIVE PLAN (effective March 11, 2021) 1. DEFINED TERMS Exhibit A, which is incorporated by reference, defines the terms used in the Plan and sets forth certain operational rules related to those terms. 2. PURPOSE The Plan has been established to advance the interests of the Company and its stockholders by providing for the gran

May 5, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

May 4, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 3, 2021 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Numb

May 4, 2021 EX-99.1

Cabot Corp Reports Second Quarter Fiscal 2021 Results

Exhibit 99.1 Cabot Corp Reports Second Quarter Fiscal 2021 Results Strong Diluted EPS of $1.30 and Record Adjusted EPS of $1.38 BOSTON-(BUSINESS WIRE)-May 3, 2021-Cabot Corporation (NYSE: CBT) today announced results for its second quarter of fiscal year 2021. Key Highlights GAAP EPS of $1.30, compared to a loss of $0.01 in the prior fiscal year second quarter. Record Adjusted EPS of $1.38, compar

March 12, 2021 8-K

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): March 11, 2021 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Cabot Corp. Title of Class of Securities: Common Stock CUSIP Number: 127055101 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

February 5, 2021 EX-10.1

Offer Letter dated February 12, 2012 between Cabot Corporation and Jeff Zhu, as amended by letter agreement dated February 4, 2021.

Exhibit 10.1 CABOT February 10, 2012 Mr. Jeff Zhu Dear Jeff: It is my pleasure to offer you the position of President, Asia Pacific Region for Cabot Corporation reporting to me. This position is based at Cabot's Asia Pacific regional headquarters in Shanghai, China and your actual employer will be Cabot China Limited, our Asia Pacific regional headquarter company. Your start date will be the day y

February 5, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

February 4, 2021 SC 13G/A

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Cabot Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 127055101 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

February 1, 2021 EX-99.1

Cabot Corp Reports First Quarter Fiscal 2021 Results

Exhibit 99.1 Cabot Corp Reports First Quarter Fiscal 2021 Results Strong Diluted EPS of $1.06 and Record Adjusted EPS of $1.18 BOSTON-(BUSINESS WIRE)-February 1, 2021-Cabot Corporation (NYSE: CBT) today announced results for its first quarter of fiscal year 2021. Key Highlights Strong GAAP EPS of $1.06, compared to $0.70 in the prior fiscal year first quarter. Record Adjusted EPS of $1.18 compared

February 1, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - CABOT CORPORATION 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 1, 2021 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

January 27, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 b

January 27, 2021 DEF 14A

- DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

January 12, 2021 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, 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): January 7, 2021 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

January 12, 2021 EX-3.1

Amended and Restated By-Laws of Cabot Corporation

EX-3.1 2 d46015dex31.htm EX-3.1 Exhibit 3.1 BY-LAWS OF CABOT CORPORATION (As Amended through January 7, 2021) Section 1. LAW, CERTIFICATE OF INCORPORATION AND BY-LAWS 1.1 These by-laws are subject to the certificate of incorporation of the corporation. In these by-laws, references to law, the certificate of incorporation and by-laws mean the law, the provisions of the certificate of incorporation

November 25, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 September 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-5667 Cabot Corporation (Exact nam

November 25, 2020 EX-21

Subsidiaries of Cabot Corporation.

Exhibit 21 Subsidiaries of Cabot Corporation (as of September 30, 2020) Subsidiary State/Jurisdiction of Incorporation Cabot Argentina S.

November 23, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - CABOT CORPORATION 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 23, 2020 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission Fil

November 23, 2020 EX-99.1

Cabot Corp Reports Fourth Quarter Diluted Loss Per Share of ($4.81) and Adjusted EPS Of $0.68

Exhibit 99.1 Cabot Corp Reports Fourth Quarter Diluted Loss Per Share of ($4.81) and Adjusted EPS Of $0.68 Fiscal Year 2020 Diluted loss per share of ($4.21) and Adjusted EPS of $2.08 BOSTON-(BUSINESS WIRE)-November 23, 2020-Cabot Corporation (NYSE: CBT) today announced results for its fourth quarter and full fiscal year 2020. Key Highlights GAAP EPS was a loss of $4.81, compared to earnings of $0

November 4, 2020 EX-99.1

Cabot Corporation Provides Update on Fourth Quarter 2020 Business Results and Reschedules Announcement of Fourth Quarter Operating Results

Exhibit 99.1 Cabot Corporation Provides Update on Fourth Quarter 2020 Business Results and Reschedules Announcement of Fourth Quarter Operating Results BOSTON-(BUSINESS WIRE)-November 4, 2020-Today, Cabot Corporation provided an update on business results for the fourth quarter of fiscal 2020. Volumes for the fourth quarter continued to recover from the third quarter of fiscal 2020. Reinforcement

November 4, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - CABOT CORPORATION 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 4, 2020 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

September 30, 2020 8-K

Material Impairments - 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 30, 2020 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

August 10, 2020 EX-10.2

First Amendment, dated June 8, 2020,to Credit Agreement dated May 22, 2019 among Cabot Corporation, certain subsidiaries of Cabot, the lenders referred to therein, Wells Fargo Bank, National Association, Wells Fargo Securities, LLV, PNC Bank, National Association, U.S. Bank National Association and Mizuho Bank, Ltd.

Exhibit 10.2 EXECUTION VERSION FIRST amendment to credit agreement This FIRST AMENDMENT TO CREDIT AGREEMENT (this “First Amendment”) is dated as of June 8, 2020, among CABOT CORPORATION (the “Company”), each undersigned Borrower (collectively, the “Borrowers” and each, a “Borrower” and together with the Company, the “Loan Parties”), WELLS FARGO BANK, NATIONAL ASSOCIATION, as Administrative Agent,

August 10, 2020 EX-10.1

First Amendment, dated June 8, 2020, to Credit Agreement dated October 23, 2015 among Cabot Corporation, JPMorgan Chase Bank, N.A., J.P. Morgan Securities LLC, Citigroup Global Markets Inc., Citibank, N.A., Bank of America, N.A., Mizuho Bank, Ltd., TD Bank, N.A., and Wells Fargo Bank, National Association, and the other lenders party thereto.

Exhibit 10.1 EXECUTION VERSION FIRST amendment to credit agreement This FIRST AMENDMENT TO CREDIT AGREEMENT (this “First Amendment”) is made and entered into as of June 8, 2020, by and among CABOT CORPORATION, a Delaware corporation (the “Company”), the Designated Borrowers as of the date hereof (together with the Company, collectively, the “Borrowers”), JPMORGAN CHASE BANK, N.A., as Administrativ

August 10, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 6, 2020 EX-99.1

Cabot Corp Reports Third Quarter Fiscal 2020 Results

EX-99.1 2 a52262590ex991.htm EXHIBIT 99.1 Exhibit 99.1 Cabot Corp Reports Third Quarter Fiscal 2020 Results Diluted loss per share of $0.12 and Adjusted EPS loss of $0.07 BOSTON-(BUSINESS WIRE)-August 6, 2020-Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2020. GAAP EPS was a loss of $0.12, compared to earnings of $0.55 in the prior fiscal year third qua

August 6, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 6, 2020 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File N

June 26, 2020 11-K

- 11-K

11-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ☒ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2019 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to . Commission file number (of issuer): 1-5667 A. Full title of the plan and the a

May 28, 2020 SD

- FORM SD

FORM SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.

May 28, 2020 EX-1.01

CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2019 to December 31, 2019

EX-1.01 Exhibit 1.01 CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2019 to December 31, 2019 Cabot Corporation has included this Conflict Minerals Report as an exhibit to its Form SD for calendar year 2019, as provided for in Rule 13p-1 under the Securities Exchange Act of 1934, as amended (collectively, the “Conflict Minerals Rule”). The date of filing of thi

May 11, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 11, 2020 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Num

May 11, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

May 11, 2020 EX-99.1

Cabot Corp Reports Second Quarter Fiscal 2020 Results

EX-99.1 2 a52217903ex991.htm EXHIBIT 99.1 Exhibit 99.1 Cabot Corp Reports Second Quarter Fiscal 2020 Results Diluted loss per share of $0.01 and Adjusted EPS of $0.77 BOSTON-(BUSINESS WIRE)-May 11, 2020-Cabot Corporation (NYSE: CBT) today announced results for its second quarter of fiscal year 2020. Key Highlights ♦ GAAP EPS was a loss of $0.01, compared to earnings of $0.39 in the prior fiscal ye

April 30, 2020 EX-99.1

CABOT CORPORATION ANNOUNCES ELECTION OF DOUGLAS DEL GROSSO TO BOARD OF DIRECTORS

EX-99.1 Exhibit 99.1 Contact: Vanessa Craigie Corporate Communications (617) 342-6015 Steve Delahunt Investor Relations (617) 342-6255 CABOT CORPORATION ANNOUNCES ELECTION OF DOUGLAS DEL GROSSO TO BOARD OF DIRECTORS Boston – April 30, 2020 – Cabot Corporation (NYSE: CBT) announced today that Douglas G. Del Grosso has been elected to its Board of Directors, effective April 30, 2020. He was also app

April 30, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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): April 28, 2020 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

March 30, 2020 EX-99.1

CABOT CORP PROVIDES UPDATE REGARDING THE CORONAVIRUS IMPACT Maintains strong liquidity and balance sheet; withdraws previous fiscal 2020 earnings guidance

EX-99.1 Exhibit 99.1 Investor Contact: Steve Delahunt (617) 342-6255 CABOT CORP PROVIDES UPDATE REGARDING THE CORONAVIRUS IMPACT Maintains strong liquidity and balance sheet; withdraws previous fiscal 2020 earnings guidance BOSTON (March 30, 2020)— Cabot Corporation (NYSE: CBT) today provided an update regarding the impact of the coronavirus pandemic to its business and subsequent actions that the

March 30, 2020 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): March 30, 2020 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

March 13, 2020 8-K

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): March 12, 2020 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

March 5, 2020 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): February 28, 2020 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

February 12, 2020 SC 13G/A

CBT / Cabot Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5)* Name of issuer: Cabot Corp Title of Class of Securities: Common Stock CUSIP Number: 127055101 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d

February 11, 2020 S-3ASR

As filed with the Securities and Exchange Commission on February 11, 2020

Table of Contents As filed with the Securities and Exchange Commission on February 11, 2020 Registration No.

February 11, 2020 EX-4.1

Form of Indenture, filed herewith.

Exhibit 4.1 CABOT CORPORATION AND [●] As Trustee Indenture Dated as of , Debt Securities TABLE OF CONTENTS ARTICLE One Definitions and Incorporation By Reference 1 Section 1.01. Definitions 1 Section 1.02. Other Definitions 3 Section 1.03. Incorporation by Reference of Trust Indenture Act 3 Section 1.04. Rules of Construction 4 ARTICLE Two The Securities 4 Section 2.01. Terms and Form 4 Section 2.

February 6, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

February 3, 2020 EX-99.1

Cabot Corp Reports First Quarter Fiscal 2020 Results

Exhibit 99.1 Cabot Corp Reports First Quarter Fiscal 2020 Results Diluted EPS of $0.70 and Adjusted EPS of $0.69 BOSTON-(BUSINESS WIRE)-February 3, 2020-Cabot Corporation (NYSE: CBT) today announced results for its first quarter of fiscal year 2020. Key Highlights Performance Chemicals EBIT up 14% compared to the first quarter of fiscal 2019 due to improved volumes Strong cash flow generation driv

February 3, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 3, 2020 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

January 24, 2020 DEF 14A

Schedule 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

January 24, 2020 DEFA14A

CBT / Cabot Corp. DEFA14A - - DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 per

January 13, 2020 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 9, 2020 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

January 8, 2020 SC 13G/A

CBT / Cabot Corp. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Cabot Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 127055101 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

November 22, 2019 EX-4.B

Description of Cabot Securities.

Exhibit 4(b) DESCRIPTION OF CABOT CORPORATION’S COMMON STOCK As of September 30, 2019, Cabot Corporation’s only class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), was Common Stock (as defined below).

November 22, 2019 EX-21

Subsidiaries of Cabot Corporation.

Exhibit 21 Subsidiaries of Cabot Corporation (as of September 30, 2019) Subsidiary State/Jurisdiction of Incorporation Cabot Argentina S.

November 22, 2019 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 September 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission File Number 1-5667 Cabot Corporation (Exact name

November 13, 2019 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): November 7, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

November 4, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 4, 2019 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-05667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File

November 4, 2019 EX-99.1

Cabot Corp Reports Fourth Quarter Diluted EPS of $0.55 and Adjusted EPS of $1.05

Exhibit 99.1 Cabot Corp Reports Fourth Quarter Diluted EPS of $0.55 and Adjusted EPS of $1.05 Fiscal Year 2019 Diluted EPS of $2.63 and Adjusted EPS of $3.91 BOSTON-(BUSINESS WIRE)-November 4, 2019-Cabot Corporation (NYSE: CBT) today announced results for its fourth quarter and full fiscal year 2019. Key Highlights Diluted EPS for the fourth quarter of $0.55; Adjusted EPS of $1.05, up 5% versus pr

October 17, 2019 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): October 11, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

August 8, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 5, 2019 EX-99.1

Cabot Corp Reports Third Quarter Fiscal 2019 Results

Exhibit 99.1 Cabot Corp Reports Third Quarter Fiscal 2019 Results Diluted EPS of $0.55 and Adjusted EPS of $1.00 BOSTON-(BUSINESS WIRE)-August 5, 2019-Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2019. Key Highlights ♦ Strong quarterly Reinforcement Materials performance with an $11 million sequential improvement in EBIT ♦ Continued benefits from our c

August 5, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K 1 a52074015.htm CABOT CORPORATION 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 5, 2019 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdicti

June 26, 2019 11-K

CBT / Cabot Corp. 11-K - - 11-K

11-K Table of Contents SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ☒ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2018 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to . Commission file number (of issuer): 1-5667 A. Full title of

June 20, 2019 EX-4.1

Second Supplemental Indenture, dated June 20, 2019, between Cabot Corporation and U.S. Bank National Association, including the form of Global Note attached as Annex A thereto.

EX-4.1 Exhibit 4.1 CABOT CORPORATION Second Supplemental Indenture Dated as of June 20, 2019 4.000% Notes due 2029 (Second Supplemental Indenture to the Indenture dated as of September 15, 2016) U.S. BANK NATIONAL ASSOCIATION, as Trustee SECOND SUPPLEMENTAL INDENTURE, dated as of June 20, 2019 (the “Second Supplemental Indenture”), between Cabot Corporation, a Delaware corporation (herein called t

June 20, 2019 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): June 20, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

June 19, 2019 424B2

CALCULATION OF REGISTRATION FEE Title of each class of securities to be registered Amount to be registered Proposed maximum aggregate offering price Amount of registration fee (1) 4.000% Notes due 2029 $300,000,000 $300,000,000 $36,360

424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) File No. 333-213088 CALCULATION OF REGISTRATION FEE Title of each class of securities to be registered Amount to be registered Proposed maximum aggregate offering price Amount of registration fee (1) 4.000% Notes due 2029 $300,000,000 $300,000,000 $36,360 (1) The registration fee is calculated in accordance with Rule 457(r) of the Securities

June 18, 2019 8-K

Financial Statements and Exhibits, Other Events

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): June 17, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

June 18, 2019 EX-99.1

Information Relating to Part II.

EX-99.1 Exhibit 99.1 Information Relating to Part II. Item 14 Other Expenses of Issuance and Distribution. The expenses in connection with the offer and sale by Cabot Corporation of $300 million aggregate principal amount of 4.000% notes due 2029, registered pursuant to an automatically effective shelf registration statement on Form S-3 (Registration No. 333-213088) that was filed with the Securit

June 18, 2019 EX-1.1

Underwriting Agreement, dated June 17, 2019, by and among Cabot Corporation, Citigroup Global Markets Inc., J.P. Morgan Securities LLC and U.S. Bancorp Investments, Inc., as representatives of the several underwriters named in Schedule 1 thereto.

EX-1.1 Exhibit 1.1 Execution Version CABOT CORPORATION $300,000,000 4.000% Senior Notes due 2029 Underwriting Agreement June 17, 2019 Citigroup Global Markets Inc. J.P. Morgan Securities LLC U.S. Bancorp Investments, Inc. As Representatives of the several Underwriters listed in Schedule 1 hereto c/o Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 c/o J.P. Morgan Securit

June 17, 2019 FWP

Cabot Corporation Pricing Term Sheet $300,000,000 4.000% Senior Notes due 2029 Issuer: Cabot Corporation Security Type: Senior Unsecured Notes Principal Amount: $300,000,000 Maturity Date: July 1, 2029 Coupon: 4.000% Price to Public: 99.704% Yield to

FWP Issuer Free Writing Prospectus, dated June 17, 2019 Filed pursuant to Rule 433 under the Securities Act of 1933 Supplementing the Preliminary Prospectus Supplement, dated June 17, 2019 Registration Statement No.

June 17, 2019 424B2

Subject to Completion, dated June 17, 2019

424B2 Table of Contents This preliminary prospectus supplement relates to an effective registration statement but is not complete and may be changed.

May 30, 2019 EX-1.01

CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2018 to December 31, 2018

EX-1.01 2 d749227dex101.htm EX-1.01 Exhibit 1.01 CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2018 to December 31, 2018 Cabot Corporation has included this Conflict Minerals Report as an exhibit to its Form SD for calendar year 2018, as provided for in Rule 13p-1 under the Securities Exchange Act of 1934, as amended (collectively, the “Conflict Minerals Rule”

May 30, 2019 SD

CBT / Cabot Corp. SD - - SD

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form SD Specialized Disclosure Report CABOT CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of incorporation or organization) (Commission File Number) (I.

May 29, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

May 29, 2019 EX-10.1

Credit Agreement

EX-10.1 Exhibit 10.1 EXECUTION VERSION €300,000,000 CREDIT AGREEMENT dated as of May 22, 2019, by and among CABOT CORPORATION, as the Company and the Guarantor, CABOT LUXEMBOURG TC S.A.R.L., LUXEMBOURG, SCHAFFHAUSEN BRANCH, CABOT GMBH, CABOT SWITZERLAND GMBH, CABOT CARBON LIMITED, PT CABOT INDONESIA, PT CABOT ASIA PACIFIC SOUTH, CERTAIN OTHER SUBSIDIARIES OF THE COMPANY FROM TIME TO TIME PARTY HER

May 13, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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 10, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

May 13, 2019 EX-99.1

Cabot Corporation Announces Election of Christine Yan to Board of Directors

Exhibit 99.1 Cabot Corporation Announces Election of Christine Yan to Board of Directors BOSTON – May 13, 2019— Cabot Corporation (NYSE: CBT) today announced that Christine Yan has been elected to its Board of Directors, effective today. She was also appointed to serve as a member of the Safety, Health, Environment & Sustainability Committee of the Board of Directors. Ms. Yan recently retired from

May 9, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

May 8, 2019 8-K

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

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 6, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

May 6, 2019 8-K

Results of Operations and Financial Condition, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 6, 2019 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Number)

May 6, 2019 EX-99.1

Cabot Corp Reports Second Quarter Fiscal 2019 Results Diluted EPS of $0.39 and Adjusted EPS of $0.99

Exhibit 99.1 Cabot Corp Reports Second Quarter Fiscal 2019 Results Diluted EPS of $0.39 and Adjusted EPS of $0.99 BOSTON-(BUSINESS WIRE)-May 6, 2019-Cabot Corporation (NYSE: CBT) today announced results for its second quarter of fiscal year 2019. Key Highlights Positive impact from calendar year 2019 tire customer agreements more than offset by pricing weakness in China in Reinforcement Materials

March 11, 2019 8-K

Submission of Matters to a Vote of Security Holders

8-K 1 d713029d8k.htm 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 7, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897

February 12, 2019 SC 13G

CBT / Cabot Corp. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Cabot Corporation (Name of Issuer) Common Stock (Title of Class of Securities) 127055101 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedu

February 11, 2019 SC 13G/A

CBT / Cabot Corp. / VANGUARD GROUP INC Passive Investment

cabotcorp.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Cabot Corp Title of Class of Securities: Common Stock CUSIP Number: 127055101 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the appropriate box to designate th

February 8, 2019 10-Q

December 31, 2018

10-Q Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2018 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

February 8, 2019 EX-10.1

Cabot Corporation 2018 Short-Term Incentive Compensation Plan.

EX-10.1 Exhibit 10.1 CABOT CORPORATION 2018 SHORT-TERM INCENTIVE COMPENSATION PLAN (effective November 8, 2018) The purpose of this 2018 Short-Term Incentive Compensation Plan (the “Plan”) is to provide incentives for certain senior executives and other key employees of Cabot Corporation (the “Company”) to achieve a sustained, high level of financial and other measures of success for the Company.

February 8, 2019 EX-10.2

Summary of Compensation for Non-Employee Directors.

EX-10.2 Exhibit 10.2 Cabot Corporation Summary of Compensation for Non-Employee Directors The cash compensation payable to Cabot’s non-employee directors consists of an annual cash retainer for serving on the Board, an annual cash retainer for serving as non-Executive Chair of the Board, and an annual cash retainer for serving as Chair of any of the Audit, Compensation, Governance and Nominating,

February 4, 2019 EX-99.1

Cabot Corp Reports First Quarter Fiscal 2019 Results Diluted EPS of $1.14 and Adjusted EPS of $0.87

Exhibit 99.1 Cabot Corp Reports First Quarter Fiscal 2019 Results Diluted EPS of $1.14 and Adjusted EPS of $0.87 BOSTON-(BUSINESS WIRE)-February 4, 2019-Cabot Corporation (NYSE: CBT) today announced results for its first quarter of fiscal year 2019. Key Highlights Solid Reinforcement Materials segment results in line with prior year Challenging short-term dynamics impacted volumes and margins in t

February 4, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 4, 2019 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Nu

February 1, 2019 8-K

Material Impairments, Other Events

8-K 1 d621971d8k.htm 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 30, 2019 CABOT CORPORATION (Exact Name of Registrant as Specified in its Charter) Delaware 1-5667 04-2271897 (State or other jurisdiction of incorpora

January 25, 2019 DEFA14A

CBT / Cabot Corp. DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A INFORMATION (Rule 14a-101) Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) 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 per

January 25, 2019 DEF 14A

January 25, 2019

Definitive Proxy Statement Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

November 21, 2018 EX-10.G

Form of Stock Option Award Certificate under the Cabot Corporation 2017 Long-Term Incentive Plan.

Exhibit 10(g) CABOT CORPORATION 2017 LONG-TERM INCENTIVE PLAN Stock Option Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company” or “Cabot”), subject to the terms provided herein and in the 2017 Long-Term Incentive Plan (as amended from time to time, the “2017 Plan”), of stock options to purchase the number of shares of common stock of Cabot set forth in the table below (such stock options referred to as your “Award”).

November 21, 2018 EX-10.E

Form of Performance-Based Restricted Stock Unit Award Certificate under the Cabot Corporation 2017 Long-Term Incentive Plan.

Exhibit 10(e) Cabot Corporation 2017 Long-Term Incentive Plan Performance-Based Restricted Stock Unit Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company”), subject to the terms provided herein and in the 2017 Long-Term Incentive Plan (as amended from time to time, the “2017 Plan”), of the number of performance-based Restricted Stock Units set forth in the table below (such units referred to as the “PSUs” or your “Award”).

November 21, 2018 10-K

September 30, 2018

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 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 September 30, 2018 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission File Number 1-5667 Cabot Corporation (Exact name

November 21, 2018 EX-21

Subsidiaries of Cabot Corporation.

Exhibit 21 Subsidiaries of Cabot Corporation (as of September 30, 2018) Subsidiary State/Jurisdiction of Incorporation Cabot Argentina S.

November 21, 2018 EX-10.F

Form of Time-Based Restricted Stock Unit Award Certificate under the Cabot Corporation 2017 Long-Term Incentive Plan.

Exhibit 10(f) Cabot Corporation 2017 Long-Term Incentive Plan Time-Based Restricted Stock Unit Award Certificate [Participant Name] This Certificate evidences the grant to you by Cabot Corporation (the “Company”), subject to the terms provided herein and in the 2017 Long-Term Incentive Plan (as amended from time to time, the “2017 Plan”), of the number of time-based Restricted Stock Units set forth in the table below (such units referred to as the “TSUs” or your “Award”).

November 14, 2018 8-K

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

8-K 1 d642749d8k.htm 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): November 8, 2018 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271

November 5, 2018 EX-99.1

Cabot Corp Reports Fourth Quarter Diluted EPS of $1.51 and Adjusted EPS of $1.00 Fiscal Year 2018 Diluted EPS of ($1.85) and Adjusted EPS of $4.03

Exhibit 99.1 Cabot Corp Reports Fourth Quarter Diluted EPS of $1.51 and Adjusted EPS of $1.00 Fiscal Year 2018 Diluted EPS of ($1.85) and Adjusted EPS of $4.03 BOSTON-(BUSINESS WIRE)-November 5, 2018-Cabot Corporation (NYSE: CBT) today announced results for its fourth quarter and full fiscal year 2018. Key Highlights Diluted full year EPS of ($1.85); Record full year Adjusted EPS of $4.03, up 14%

November 5, 2018 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 5, 2018 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Nu

August 8, 2018 10-Q

CBT / Cabot Corp. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-5667 Cabot Corporation (Exact name of registrant as specified in its charter) Delaware 04-2271897 (State or other jurisdiction of incorporation or organization) (I.

August 8, 2018 EX-10.1

Transition and Separation Agreement dated June 27, 2018 between Cabot Corporation and Eduardo E. Cordeiro.

Exhibit 10.1 June 11, 2018 By Hand Eduardo E. Cordeiro Dear Eddie: This transition and separation agreement (the “Agreement”) confirms the terms of the remainder of your employment with Cabot Corporation (“Cabot” or the “Company”) and the termination of your employment with the Company. You may accept this offer only by signing a copy of this Agreement where indicated below and returning it to Art

August 7, 2018 8-K/A

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A 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 6, 2018 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

August 7, 2018 EX-99.1

Cabot Corp Reports Third Quarter Fiscal 2018 Results Diluted EPS of $1.40 and Adjusted EPS of $1.06

Exhibit 99.1 Cabot Corp Reports Third Quarter Fiscal 2018 Results Diluted EPS of $1.40 and Adjusted EPS of $1.06 BOSTON-(BUSINESS WIRE)-August 6, 2018-Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2018. Key Highlights Diluted EPS of $1.40, compared to $0.73 in the same period of the prior year; Adjusted EPS of $1.06, up 28% year-over-year Reinforcement

August 6, 2018 EX-99.1

Cabot Corp Reports Third Quarter Fiscal 2018 Results Diluted EPS of $1.40 and Adjusted EPS of $1.06

Exhibit 99.1 Cabot Corp Reports Third Quarter Fiscal 2018 Results Diluted EPS of $1.40 and Adjusted EPS of $1.06 BOSTON-(BUSINESS WIRE)-August 6, 2018-Cabot Corporation (NYSE: CBT) today announced results for its third quarter of fiscal year 2018. Key Highlights Diluted EPS of $1.40, compared to $0.73 in the same period of the prior year; Adjusted EPS of $1.06, up 28% year-over-year Reinforcement

August 6, 2018 8-K

CBT / Cabot Corp. CABOT CORPORATION 8-K (Current Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 6, 2018 Cabot Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Numb

July 23, 2018 8-K

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

Form 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 18, 2018 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

July 16, 2018 EX-99.1

Cabot Corporation Announces Election of Frank “Andy” Wilson to Board of Directors

EX-99.1 Exhibit 99.1 Contact: Vanessa Craigie Corporate Communications (617) 342-6015 Cabot Corporation Announces Election of Frank “Andy” Wilson to Board of Directors Boston – July 16, 2018 – Cabot Corporation (NYSE: CBT) announced today that Frank “Andy” Wilson has been elected to its Board of Directors, effective September 13, 2018. He was also appointed a member of the Audit Committee of the B

July 16, 2018 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

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 13, 2018 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE 1-5667 04-2271897 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.

July 3, 2018 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 27, 2018 CABOT CORPORATION (Exact Name of Registrant as Specified in Its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 1-5667 04-2271897 (Commission File Number) (IRS Employer Identification No.

June 15, 2018 11-K

CBT / Cabot Corp. 11-K

11-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 11-K ☒ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2017 or ☐ Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition period from to . Commission file number (of issuer): 1-5667 A. Full title of the plan and the a

May 31, 2018 EX-1.01

CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2017 to December 31, 2017

EX-1.01 Exhibit 1.01 CABOT CORPORATION CONFLICT MINERALS REPORT For the reporting period from January 1, 2017 to December 31, 2017 Cabot Corporation has included this Conflict Minerals Report as an exhibit to its Form SD for calendar year 2017, as provided for in Rule 13p-1 under the Securities Exchange Act of 1934, as amended (collectively, the “Conflict Minerals Rule”). The date of filing of thi

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