ATKR / Atkore Inc. - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Business Wire Press Release Date: August 5, 2025 Atkore Inc. Announces CEO’s Decision to Retire Bill Waltz to retire as President and CEO and to step down from the Board following the appointment of successor Board of Directors Initiates CEO Search P

pressrelease20250805 Business Wire Press Release Date: August 5, 2025 Atkore Inc. Announces CEO’s Decision to Retire Bill Waltz to retire as President and CEO and to step down from the Board following the appointment of successor Board of Directors Initiates CEO Search Process HARVEY, IL – August 5, 2025 (BUSINESS WIRE) – Atkore Inc. (“Atkore”) (NYS: ATKR) today announced that William (Bill) Waltz

Three months ended (in thousands) June 27, 2025 June 28, 2024 Change % Change Net sales Electrical $ 521,308 $ 605,962 $ (84,654) (14.0) % Safety & Infrastructure 213,963 217,024 (3,061) (1.4) % Eliminations (226) (622) 396 (63.7) % Consolidated oper

Exhibit 99.1 Atkore Inc. Announces Third Quarter 2025 Results •Net sales of $735.0 million, down 10.6% versus prior year •Net income per diluted share decreased by $2.08 versus prior year to $1.25; Adjusted net income per diluted share decreased by $2.17 versus prior year to $1.63 •Net income decreased by $80.5 million versus prior year to $43.0 million; Adjusted EBITDA decreased by $106.2 million

Third Quarter 2025 Earnings Presentation and Business Update August 5, 2025 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present fu

q32025earningsdeck-vf Third Quarter 2025 Earnings Presentation and Business Update August 5, 2025 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 27, 2025 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 27, 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 001-37793 Atkore Inc. (Exact nam

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, 2025 Atkore Inc. (Exact

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, 2025 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number)

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, 2025 (August 4, 2025) A

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, 2025 (August 4, 2025) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commis

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 16100 South Lathrop Avenue Harvey, Illinois 60426 (Address of principal executive offic

Conflict Minerals Report for the calendar year ended December 31, 2024

Atkore Inc. Conflict Minerals Report for The Year Ended December 31, 2024 This report for the calendar year ended December 31, 2024, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange Commission (“SEC”) to implement reporting and disclosure requirements related to Conflict Minerals as directed by the Do

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 28, 2025 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 28, 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 001-37793 Atkore Inc. (Exact na

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, 2025 Atkore Inc. (Exact na

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, 2025 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (I

Second Quarter 2025 Earnings Presentation and Business Update May 6, 2025 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full

Second Quarter 2025 Earnings Presentation and Business Update May 6, 2025 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

Three months ended (in thousands) March 28, 2025 March 29, 2024 Change % Change Net sales Electrical $ 492,677 $ 590,820 $ (98,143) (16.6) % Safety & Infrastructure 209,272 202,419 6,853 3.4 % Eliminations (225) (328) 103 (31.4) % Consolidated operat

Exhibit 99.1 Atkore Inc. Announces Second Quarter 2025 Results •Net sales of $701.7 million, down 11.5% versus prior year •Net income per diluted share decreased by $5.13 versus prior year to a diluted loss per share of $(1.46); Adjusted net income per diluted share decreased by $2.04 versus prior year to $2.04 •Net income decreased by $188.0 million versus prior year to a net loss of $50.1 millio

Entry into a Material Definitive Agreement, 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 5, 2025 (April 30, 2025) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commissio

Amendment Number Four to Credit Agreement, dated as of April 30, 2025, among Atkore International Inc., the subsidiaries of Atkore International Inc., the lenders and other financial institutions party thereto and Wells Fargo Bank, National Association, as swingline lender, issuing lender, administrative agent and collateral agent.

fourthamendmenttocredita Filing Version AMENDMENT NUMBER FOUR TO CREDIT AGREEMENT THIS AMENDMENT NUMBER FOUR TO CREDIT AGREEMENT (this “Amendment”), dated as of April 30, 2025, is entered into by and among ATKORE INTERNATIONAL, INC.

Records Impairment Charge related to HDPE Pipe & Conduit Assets Maintains Outlook for Full-Year Fiscal 2025 New Collective Bargaining Agreement Reached at Harvey, IL Location Company to Release Q2 Earnings on May 6, 2025

Exhibit 99.1 Atkore Inc. Announces Estimates for its Second Quarter and Provides Business Update Records Impairment Charge related to HDPE Pipe & Conduit Assets Maintains Outlook for Full-Year Fiscal 2025 New Collective Bargaining Agreement Reached at Harvey, IL Location Company to Release Q2 Earnings on May 6, 2025 HARVEY, Ill.-(BUSINESS WIRE)-Atkore Inc. (the “Company” or “Atkore”) (NYSE: ATKR),

Regulation FD Disclosure, Financial Statements and Exhibits, Material Impairments, 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): April 21, 2025 (April 15, 2025) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commis

Other Events

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 14, 2025 (February 13, 2025) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (

Three months ended (in thousands) December 27, 2024 December 29, 2023 Change % Change Net sales Electrical $ 465,355 $ 593,661 $ (128,306) (21.6) % Safety & Infrastructure 196,724 205,127 (8,403) (4.1) % Eliminations (482) (306) (176) 57.5 % Consolid

Exhibit 99.1 Atkore Inc. Announces First Quarter 2025 Results •Net sales of $661.6 million, down 17.1% versus prior year •Net income per diluted share decreased by $2.30 versus prior year to $1.31; Adjusted net income per diluted share decreased by $2.49 versus prior year to $1.63 •Net income decreased by $92.0 million versus prior year to $46.3 million; Adjusted EBITDA decreased by $114.4 million

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 27, 2024 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 27, 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 001-37793 Atkore Inc. (Exact

Letter Agreement, between John Pregenzer and the Company, incorporated by reference to Exhibit 10.1 to Atkore Inc's Quarterly Report on Form 10-Q for the quarter ended December 27, 2024

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, 2025 Atkore Inc. (Exa

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, 2025 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

First Quarter 2025 Earnings Presentation and Business Update February 4, 2025 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present

q12025earningsdeck-vfx20 First Quarter 2025 Earnings Presentation and Business Update February 4, 2025 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

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

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, 2025 (January 30, 2025) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Co

Atkore Inc. Names John W. Pregenzer as Chief Operating Officer; Retains Role as President-Electrical HARVEY, Ill.--(BUSINESS WIRE)-- Atkore Inc. (the “Company”) (NYSE: ATKR), a leading manufacturer of electrical products for commercial, industrial, d

Atkore Inc. Names John W. Pregenzer as Chief Operating Officer; Retains Role as President-Electrical HARVEY, Ill.-(BUSINESS WIRE)- Atkore Inc. (the “Company”) (NYSE: ATKR), a leading manufacturer of electrical products for commercial, industrial, data center, telecommunications, and solar applications, today announced that John W. Pregenzer is named Chief Operating Officer in addition to his curre

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, 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 10, 2025 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: x Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Investor Presentation & Company Overview November 2024 Allied Tube & Conduit Allied Tube & Conduit 2 atkore.com 1© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interes

Investor Presentation & Company Overview November 2024 Allied Tube & Conduit Allied Tube & Conduit 2 atkore.

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): November 27, 2024 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

Schedule of Signatories to a Director Indemnification Agreement.

EXHIBIT 10.12.1 SCHEDULE OF SIGNATORIES TO DIRECTOR INDEMNIFICATION AGREEMENTS 1. Betty R. Wynn 2. William E. Waltz Jr. 3. A. Mark Zeffiro 4. Jeri L. Isbell 5. Wilbert W. James Jr 6. Michael V. Schrock 7. Justin A. Kershaw 8. Scott H. Muse 9. B. Joanne Edwards

List of Subsidiaries of Atkore Inc. as of September 30, 2024.

Exhibit 21.1 ATKORE INC. Significant Subsidiaries As of September 30, 2024 Entity Name Jurisdiction of Incorporation AFC Cable Systems, Inc. Delaware Allied Luxembourg S.a.r.l. Luxembourg Allied Products UK Limited United Kingdom Allied Tube & Conduit Corporation Delaware Atkore Construction Technologies NZ Limited New Zealand Atkore Foreign Holdings, Inc. Delaware Atkore HDPE, LLC Delaware Atkore

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 ☐ TRANSITION REPORT PURSUANT TO SECT

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 Commission file number 001-37793 Atkore Inc. (Exact name of registrant as specified in its c

2024 Fourth Quarter Results Three Months Ended (in thousands) September 30, 2024 September 30, 2023 Change Change % Net sales Electrical $ 564,535 $ 649,787 $ (85,252) (13.1) % Safety & Infrastructure 224,507 220,239 4,268 1.9 % Eliminations (746) (1

Exhibit 99.1 Atkore Inc. Announces Fourth Quarter 2024 Results Fourth-Quarter Highlights •Net sales decreased by $81.6 million versus prior year period to $788.3 million •Net income decreased by $67.8 million versus prior year period to $73.1 million; Adjusted EBITDA decreased by $91.8 million versus prior year period to $140.2 million •Net income per diluted share decreased to $2.02 from $3.63 in

Atkore International Group Inc. Policy on Trading in Securities

insidertradingpolicyalll Select Language English Español (Spanish) Português (Portuguese) Tiếng Việt (Vietnamese) Insider Trading Policy 1 Issued by: Atkore Policy Steering Committee Approved: Reviewed and approved by the Board of Directors on April 27, 2016 Insider Trading Policy POLICY HIGHLIGHTS • This Policy applies to all Company Associates, including full-time, part-time, salaried, hourly, union, and nonunion, officers, executives and the Board of Directors, and to immediate family members and other persons living in their households.

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 21, 2024 Atkore Inc. (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): November 21, 2024 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

Atkore International Group Inc. Policy on Trading in Securities for Section 16 and Designated Insiders

designatedandsection16in Issued by: Atkore Policy Steering Committee Approved: Reviewed and approved January 2022 1 Designated and Section 16 Insider Trading Policy INTENT AND SCOPE This Policy of Atkore Inc.

Atkore International Group Inc. Clawback Policy

atkoreclawbackpolicyupda Debevoise Comments – 6/20/23 1008933074v3 Atkore International Group Inc.

© Atkore Fourth Quarter and Full Year 2024 Earnings Presentation and Business Update November 21, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor do

q42024earningsdeck-vf © Atkore Fourth Quarter and Full Year 2024 Earnings Presentation and Business Update November 21, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

ATKR / Atkore Inc. / Gates Capital Management, Inc. Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

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, 2024 Atkore Inc. (Exact

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, 2024 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number)

Three months ended (in thousands) June 28, 2024 June 30, 2023 Change % Change Net sales Electrical $ 605,962 $ 705,617 $ (99,655) (14.1) % Safety & Infrastructure 217,024 213,606 3,418 1.6 % Eliminations (622) (106) (516) 486.8 % Consolidated operati

Exhibit 99.1 Atkore Inc. Announces Third Quarter 2024 Results •Net sales of $822.4 million, down 10.5% versus prior year •Net income per diluted share decreased by $1.80 versus prior year to $3.33; Adjusted net income per diluted share decreased by $1.92 versus prior year to $3.80 •Net income decreased by $77.9 million versus prior year to $123.4 million; Adjusted EBITDA decreased by $64.1 million

© Atkore Third Quarter 2024 Earnings Presentation and Business Update August 6, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to p

q32024earningsdeck-vf © Atkore Third Quarter 2024 Earnings Presentation and Business Update August 6, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 28, 2024 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 28, 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 001-37793 Atkore Inc. (Exact nam

Atkore Announces CFO and CAO Transition

Atkore Announces CFO and CAO Transition HARVEY, Ill.-(BUSINESS WIRE)- Atkore Inc. (the “Company”) (NYSE: ATKR), a leading manufacturer of electrical products for commercial, industrial, data center, telecommunications, and solar applications, today announced that David Johnson has submitted his resignation as Vice President, Chief Financial Officer and Chief Accounting Officer, effective close of

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, 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): July 23, 2024 (July 22, 2024) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commissi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 16100 South Lathrop Avenue Harvey, Illinois 60426 (Address of principal executive offic

Conflict Minerals Report for the calendar year ended December 31, 2023

Atkore Inc. Conflict Minerals Report for The Year Ended December 31, 2023 This report for the calendar year ended December 31, 2023, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange Commission (“SEC”) to implement reporting and disclosure requirements related to Conflict Minerals as directed by the Do

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): May 17, 2024 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (

© Atkore Investor Presentation & Company Overview May 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair discl

© Atkore Investor Presentation & Company Overview May 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

Three months ended (in thousands) March 29, 2024 March 31, 2023 Change % Change Net sales Electrical $ 590,820 $ 680,965 $ (90,145) (13.2) % Safety & Infrastructure 202,419 215,054 (12,635) (5.9) % Eliminations (328) (85) (243) 285.9 % Consolidated o

Exhibit 99.1 Atkore Inc. Announces Second Quarter 2024 Results •Net sales of $792.9 million, down 11.5% versus prior year •Net income per diluted share decreased by $0.64 versus prior year to $3.67; Adjusted net income per diluted share decreased by $0.79 versus prior year to $4.08 •Net income decreased by $36.2 million versus prior year to $138.0 million; Adjusted EBITDA decreased by $64.1 millio

Regulation FD Disclosure, 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 7, 2024 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (I

© Atkore Second Quarter 2024 Earnings Presentation and Business Update May 7, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to pre

© Atkore Second Quarter 2024 Earnings Presentation and Business Update May 7, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 29, 2024 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 29, 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 001-37793 Atkore Inc. (Exact na

ATKR / Atkore Inc. / 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.: 6)* Name of issuer: Atkore Inc Title of Class of Securities: Common Stock CUSIP Number: 047649108 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 13d

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 29, 2023 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 29, 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 001-37793 Atkore Inc. (Exact

© Atkore First Quarter 2024 Earnings Presentation and Business Update February 1, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to

© Atkore First Quarter 2024 Earnings Presentation and Business Update February 1, 2024 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

Three months ended (in thousands) December 29, 2023 December 30, 2022 Change % Change Net sales Electrical $ 593,661 $ 638,705 $ (45,044) (7.1) % Safety & Infrastructure 205,127 195,259 9,868 5.1 % Eliminations (306) (143) (163) 114.0 % Consolidated

Exhibit 99.1 Atkore Inc. Announces First Quarter 2024 Results •Net sales of $798.5 million, down 4.2% versus prior year •Net income per diluted share decreased by $0.59 versus prior year to $3.61; Adjusted net income per diluted share decreased by $0.49 versus prior year to $4.12 •Net income decreased by $35.1 million versus prior year to $138.4 million; Adjusted EBITDA decreased by $50.3 million

Regulation FD Disclosure, 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 1, 2024 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

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

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, 2024 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

© Atkore Fourth Quarter and Full Year 2023 Earnings Presentation and Business Update November 17, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor do

© Atkore Fourth Quarter and Full Year 2023 Earnings Presentation and Business Update November 17, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

2023 Fourth Quarter Results Three Months Ended (in thousands) September 30, 2023 September 30, 2022 Change Change % Net sales Electrical $ 649,787 $ 795,220 $ (145,433) (18.3) % Safety & Infrastructure 220,239 233,884 (13,645) (5.8) % Eliminations (1

Exhibit 99.1 Atkore Inc. Announces Fourth Quarter 2023 Results Fourth-Quarter Highlights •Net income per diluted share decreased to $3.63 from $5.18 in prior year period; Adjusted net income per diluted share decreased to $4.21 from $5.52 in prior year period •Net income decreased by $79.9 million versus prior year period to $140.9 million; Adjusted EBITDA decreased by $93.1 million versus prior y

Atkore Fourth Amended and Restated Bylaws (effective November 13 2023)

ATKORE INC. FOURTH AMENDED AND RESTATED BY-LAWS Effective as of November 13, 2023 ATKORE INC. BY-LAWS Table of Contents Page Article I MEETINGS OF STOCKHOLDERS Section 1.01 Annual Meetings 1 Section 1.02 Special Meetings 1 Section 1.03 Participation in Meetings by Remote Communication 5 Section 1.04 Notice of Meetings; Waiver of Notice 5 Section 1.05 Proxies 6 Section 1.06 Voting Lists 6 Section 1

List of Subsidiaries of Atkore Inc. as of September 30, 2023.

Exhibit 21.1 ATKORE INC. Significant Subsidiaries As of September 30, 2023 Entity Name Jurisdiction of Incorporation AFC Cable Systems, Inc. Delaware Allied Luxembourg S.a.r.l. Luxembourg Allied Products UK Limited United Kingdom Allied Tube & Conduit Corporation Delaware Allied Switzerland GmbH Switzerland Atkore Construction Technologies NZ Limited New Zealand Atkore Foreign Holdings, Inc. Delaw

Schedule of Signatories to a Director Indemnification Agreement.

EXHIBIT 10.12.1 SCHEDULE OF SIGNATORIES TO DIRECTOR INDEMNIFICATION AGREEMENTS 1. Betty R. Wynn 2. William E. Waltz Jr. 3. A. Mark Zeffiro 4. Jeri L. Isbell 5. Wilbert W. James Jr 6. Michael V. Schrock 7. Justin A. Kershaw 8. Scott H. Muse 9. B. Joanne Edwards

Regulation FD Disclosure, 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 17, 2023 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

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 ☐ TRANSITION REPORT PURSUANT TO SECT

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 Commission file number 001-37793 Atkore Inc. (Exact name of registrant as specified in its c

© Atkore Investor Presentation & Company Overview September 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair

© Atkore Investor Presentation & Company Overview September 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

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): September 1, 2023 Atkore Inc. (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): September 1, 2023 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

© Atkore Third Quarter 2023 Earnings Presentation and Business Update August 8, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to p

fy23q3erdeckex992 © Atkore Third Quarter 2023 Earnings Presentation and Business Update August 8, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

Regulation FD Disclosure, 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, 2023 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number)

Three months ended (in thousands) June 30, 2023 June 24, 2022 Change % Change Net sales Electrical $ 705,617 $ 821,566 $ (115,949) (14.1) % Safety & Infrastructure 213,606 241,909 (28,303) (11.7) % Eliminations (106) (1,885) 1,779 (94.4) % Consolidat

Exhibit 99.1 Atkore Inc. Announces Third Quarter 2023 Results •Net sales of $919.1 million, down 13.4% versus prior year •Net income per diluted share decreased by $0.61 versus prior year to $5.13; Adjusted net income per diluted share decreased by $0.35 versus prior year to $5.72 •Net income decreased by $53.0 million versus prior year to $201.3 million; Adjusted EBITDA decreased by $107.3 millio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 001-37793 Atkore Inc. (Exact nam

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 16100 South Lathrop Avenue Harvey, Illinois 60426 (Address of principal executive offic

Conflict Minerals Report for the calendar year ended December 31, 2022

Atkore Inc. Conflict Minerals Report for The Year Ended December 31, 2022 This report for the calendar year ended December 31, 2022, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange Commission (“SEC”) to implement reporting and disclosure requirements related to Conflict Minerals as directed by the Do

© Atkore Investor Presentation & Company Overview May 2023 This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with

atkrmay23ir © Atkore Investor Presentation & Company Overview May 2023 This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

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 19, 2023 Atkore Inc. (Exact n

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 19, 2023 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (

Three months ended (in thousands) March 31, 2023 March 25, 2022 Change % Change Net sales Electrical $ 680,965 $ 759,877 $ (78,912) (10.4) % Safety & Infrastructure 215,054 224,285 (9,231) (4.1) % Eliminations (85) (1,589) 1,504 (94.7) % Consolidated

Exhibit 99.1 Atkore Inc. Announces Second Quarter 2023 Results •Net sales of $895.9 million, down 8.8% versus prior year •Net income per diluted share decreased by $0.77 versus prior year to $4.31; Adjusted net income per diluted share decreased by $0.52 versus prior year to $4.87 •Net income decreased by $59.3 million versus prior year to $174.2 million; Adjusted EBITDA decreased by $70.1 million

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 001-37793 Atkore Inc. (Exact na

Amendment Number One to Term Loan Credit Agreement, dated as of March 15, 2023, by and among Atkore Inc., as parent, Atkore International Inc., as borrower, the several lenders party thereto and JPMorgan Chase Bank, N.A, as administrative agent and collateral agent.

atkore-firstamendmentexe Execution Version AMENDMENT NO. 1 TO TERM LOAN CREDIT AGREEMENT THIS AMENDMENT NO. 1 TO TERM LOAN CREDIT AGREEMENT (this “Agreement”), dated as of March 15, 2023, is entered into among ATKORE INC., a Delaware corporation (the “Parent”), ATKORE INTERNATIONAL, INC., a Delaware corporation (the “Borrower”), the Guarantors party hereto, and JPMORGAN CHASE BANK, N.A., as admini

© Atkore Second Quarter 2023 Earnings Presentation and Business Update May 9, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to pre

fy23q2erdeckex992 © Atkore Second Quarter 2023 Earnings Presentation and Business Update May 9, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

Amendment Number Two to Credit Agreement, dated as of March 24, 2023, among Atkore International Inc., the subsidiaries of Atkore International Inc., the lenders and other financial institutions party thereto and Wells Fargo Bank, National Association, as swingline lender, issuing lender, administrative agent and collateral agent.

wf-atkorexamendmentno2to LEGALUSE # 168774582.4 Posting Version AMENDMENT NUMBER TWO TO CREDIT AGREEMENT THIS AMENDMENT NUMBER TWO TO CREDIT AGREEMENT (this “Amendment”), dated as of March 24, 2023, is entered into by and among ATKORE INTERNATIONAL, INC., a Delaware corporation (together with its successors and assigns, the “Parent Borrower”), the Subsidiary Borrowers party hereto (together with t

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 9, 2023 Atkore Inc. (Exact na

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 9, 2023 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (I

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 21, 2023 Atkore Inc. (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): February 21, 2023 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

© Atkore Investor Presentation & Company Overview February 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair

atkrirfeb23 © Atkore Investor Presentation & Company Overview February 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

ATKR / Atkore International Group Inc. / 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: Atkore Inc. Title of Class of Securities: Common Stock CUSIP Number: 047649108 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

© Atkore First Quarter 2023 Earnings Presentation and Business Update February 1, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to

© Atkore First Quarter 2023 Earnings Presentation and Business Update February 1, 2023 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

Regulation FD Disclosure, 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 1, 2023 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

Three months ended (in thousands) December 30, 2022 December 24, 2021 Change % Change Net sales Electrical $ 638,705 $ 641,683 $ (2,978) (0.5) % Safety & Infrastructure 195,259 200,510 (5,251) (2.6) % Eliminations (143) (1,392) 1,249 (89.7) % Consoli

Exhibit 99.1 Atkore Inc. Announces First Quarter 2023 Results •Net sales of $833.8 million, down 0.8% versus prior year •Net income per diluted share decreased by $0.12 versus prior year to $4.20; Adjusted net income per diluted share increased by $0.03 versus prior year to $4.61 •Net income decreased by $31.4 million versus prior year to $173.5 million; Adjusted EBITDA decreased by $29.2 million

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 30, 2022 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 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 001-37793 Atkore Inc. (Exact

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

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, 2023 (January 27, 2023) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Co

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, D.C. 20549 FORM 8-K/A (Amendment No. 1) 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 13, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (

Atkore Inc. Announces Retirement of William VanArsdale from Board of Directors

Exhibit 99.1 Contact: Lisa Winter Vice President - Communications Atkore Inc. 708 225-2453 John Deitzer Vice President ? Investor Relations & Treasury Atkore Inc. 708 225 2124 Atkore Inc. Announces Retirement of William VanArsdale from Board of Directors Harvey, Illinois, December 28, 2022/Business Wire/ - Atkore Inc. (?Atkore?), today announced that William (Bill) R. VanArsdale is retiring from t

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

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, 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 28, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

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 13, 2022 (December 12, 2

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 13, 2022 (December 12, 2022) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Atkore Inc. Names Joanne (Barbara) Edwards as New Director

Exhibit 99.1 Atkore Inc. Names Joanne (Barbara) Edwards as New Director Tuesday, December 13, 2022: Atkore Inc. (the “Company”) (NYSE: ATKR), a leading provider of electrical, safety and infrastructure solutions, today announced that the Company’s Board of Directors (the “Board”) has appointed Ms. Joanne (Barbara) Edwards as a director, effective February 1, 2023. The appointment is in preparation

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 ☐ TRANSITION REPORT PURSUANT TO SECT

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 Commission file number 001-37793 Atkore Inc. (Exact name of registrant as specified in its c

Schedule of Signatories to a Director Indemnification Agreement.

EXHIBIT 10.12.1 SCHEDULE OF SIGNATORIES TO DIRECTOR INDEMNIFICATION AGREEMENTS 1. Betty R. Johnson 2. William E. Waltz Jr. 3. A. Mark Zeffiro 4. Jeri L. Isbell 5. Wilbert W. James Jr 6. Michael V. Schrock 7. Justin A. Kershaw 8. Scott H. Muse 9. William R. VanArsdale

© Atkore Fourth Quarter and Full Year 2022 Earnings Presentation and Business Update November 18, 2022 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor do

q42022earningsdeck-vfina © Atkore Fourth Quarter and Full Year 2022 Earnings Presentation and Business Update November 18, 2022 2© Atkore This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc.

2022 Fourth Quarter Results Three Months Ended (in thousands) September 30, 2022 September 30, 2021 Change Change % Net sales Electrical $ 795,220 $ 697,492 $ 97,728 14.0 % Safety & Infrastructure 233,884 227,361 6,523 2.9 % Eliminations (118) (1,122

Exhibit 99.1 Atkore Inc. Announces Fourth Quarter 2022 Results Fourth-Quarter Highlights •Net income per diluted share increased to $5.18 from $4.26 in prior year period; Adjusted net income per diluted share increased to $5.52 from $4.39 in prior year period •Net income increased by $18.2 million versus prior year period to $220.8 million; Adjusted EBITDA increased by $32.2 million versus prior y

Severance Policy, dated January 3, 2022

Issued by: Atkore Policy Steering Committee Approved: Reviewed and approved 1/3/2022 1 Severance Policy INTENT AND SCOPE It is the intent of the Company to provide stable employment opportunities for employees.

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 18, 2022 Atkore Inc. (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): November 18, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

List of Subsidiaries of Atkore Inc. as of September 30, 202

Exhibit 21.1 ATKORE INC. Significant Subsidiaries As of September 30, 2022 Entity Name Jurisdiction of Incorporation Acroba S.A.S. (closed 9/2/2022) France AFC Cable Systems, Inc. Delaware Allied Luxembourg S.a.r.l. Luxembourg Allied Metal Products (Changshu) Co., Ltd. China Allied Products UK Limited United Kingdom Allied Switzerland GmbH Switzerland Allied Tube & Conduit Corporation Delaware Ame

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): November 8, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

Atkore Inc. Announces Acquisition of Elite Polymer Solutions

Exhibit 99.1 Contact: Lisa Winter Vice President - Communications Atkore Inc. 708 225-2453 John Deitzer Vice President ? Investor Relations & Treasury Atkore Inc. 708 225 2124 Atkore Inc. Announces Acquisition of Elite Polymer Solutions Harvey, Illinois, November 8, 2022/Business Wire/ - Atkore Inc. (?Atkore?), today announced the acquisition of the assets of Elite Polymer Solutions (?Elite?), a m

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): November 7, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

© Atkore Inc. Investor Presentation & Company Overview Baird Global Industrial Conference - November 2022 Bill Waltz, President & CEO and David Johnson, CFO © Atkore Cautionary Statements This presentation is provided for general informational purpos

? Atkore Inc. Investor Presentation & Company Overview Baird Global Industrial Conference - November 2022 Bill Waltz, President & CEO and David Johnson, CFO ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore In

Vice President - Communications Atkore Inc.

Exhibit 99.1 Contact: Lisa Winter Vice President - Communications Atkore Inc. 708 225-2453 John Deitzer Vice President ? Investor Relations & Treasury Atkore Inc. 708 225 2124 Atkore Inc. Announces Acquisition of Cascade Poly Pipe & Conduit and Northwest Polymers Harvey, Illinois, August 30, 2022/Business Wire/ - Atkore Inc. (?Atkore?), today announced the acquisitions of two separate but related

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): August 31, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number

© Atkore Inc. Third Quarter 2022 Earnings Presentation August 2, 2022 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purpor

? Atkore Inc. Third Quarter 2022 Earnings Presentation August 2, 2022 ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (the ?Company? or ?Atkore?) or its operational and financial information. Atkore exp

Three months ended (in thousands) June 24, 2022 June 25, 2021 Change % Change Net sales Electrical $ 821,566 $ 661,163 $ 160,403 24.3 % Safety & Infrastructure 241,909 193,492 48,417 25.0 % Eliminations (1,885) (997) (888) 89.1 % Consolidated operati

Exhibit 99.1 Atkore Inc. Announces Third Quarter 2022 Results ?Net sales of $1,061.6 million, up 24.4% versus prior year ?Net income per diluted share increased by $2.10 versus prior year to $5.74; Adjusted net income per diluted share increased by $2.11 versus prior year to $6.07 ?Net income increased by $79.0 million versus prior year to $254.3 million; Adjusted EBITDA increased by $103.3 millio

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 24, 2022 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 24, 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 001-37793 Atkore Inc. (Exact nam

Regulation FD Disclosure, 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 2, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number)

Atkore Inc. Announces Acquisition of United Poly Systems

Exhibit 99.1 Contact: Lisa Winter Vice President - Communications Atkore Inc. 708 225-2453 John Deitzer Vice President ? Investor Relations & Treasury Atkore Inc. 708 225-2124 Atkore Inc. Announces Acquisition of United Poly Systems Harvey, Illinois, June 21, 2022/Business Wire/ - Atkore Inc. (the ?Company? or ?Atkore?) (NYSE: ATKR), today announced that it has acquired United Poly Systems, a manu

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): June 22, 2022 (June 21, 2022) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commissi

Conflict Minerals Report for the calendar year ended December 31, 2021

EX-1.01 2 conflictmineralsreport1012.htm EX-1.01 Atkore Inc. Conflict Minerals Report for The Year Ended December 31, 2021 This report for the calendar year ended December 31, 2021, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange Commission (“SEC”) to implement reporting and disclosure requirements r

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporati

SD 1 atkrformsdx2021.htm SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 16100 South Lathrop Avenue Harvey, Illinois 60426 (Address

© Atkore Inc. Investor Presentation & Company Overview May 2022 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to p

? Atkore Inc. Investor Presentation & Company Overview May 2022 ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (the ?Company? or ?Atkore?) or its operational and financial information. Atkore expressly

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): May 11, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 25, 2022 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 25, 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 001-37793 Atkore Inc. (Exact na

Three months ended (in thousands) March 25, 2022 March 26, 2021 Change % Change Net sales Electrical $ 759,877 $ 487,500 $ 272,377 55.9 % Safety & Infrastructure 224,285 152,700 71,585 46.9 % Eliminations (1,589) (657) (932) 141.9 % Consolidated oper

Exhibit 99.1 Atkore Inc. Announces Second Quarter 2022 Results ?Net sales of $982.6 million, up 53.6% versus prior year ?Net income per diluted share increased by $2.50 versus prior year to $5.08; Adjusted net income per diluted share increased by $2.60 versus prior year to $5.39 ?Net income increased by $108.5 million versus prior year to $233.5 million; Adjusted EBITDA increased by $152.8 millio

© Atkore Inc. Second Quarter 2022 Earnings Presentation May 3, 2022 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport

? Atkore Inc. Second Quarter 2022 Earnings Presentation May 3, 2022 ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (the ?Company? or ?Atkore?) or its operational and financial information. Atkore expre

Regulation FD Disclosure, 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, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (I

© Atkore Inc. Investor Presentation & Company Overview February 2022 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport

? Atkore Inc. Investor Presentation & Company Overview February 2022 ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (the ?Company? or ?Atkore?) or its operational and financial information. Atkore expr

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): February 16, 2022 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

ATKR / Atkore International Group Inc. / 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.: 4)* Name of issuer: Atkore Inc. Title of Class of Securities: Common Stock CUSIP Number: 047649108 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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 24, 2021 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 24, 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 001-37793 Atkore Inc. (Exact

Three months ended (in thousands) December 24, 2021 December 25, 2020 Change % Change Net sales Electrical $ 641,683 $ 387,145 $ 254,538 65.7 % Safety & Infrastructure 200,510 124,765 75,745 60.7 % Eliminations (1,392) (828) (564) 68.1 % Consolidated

Exhibit 99.1 Atkore Inc. Announces First Quarter 2022 Results ?Net sales of $840.8 million, up 64.5% versus prior year ?Net income per diluted share increased by $2.57 versus prior year to $4.32; Adjusted net income per diluted share increased by $2.70 versus prior year to $4.58 ?Net income increased by $119.8 million versus prior year to $204.8 million; Adjusted EBITDA increased by $156.0 million

© Atkore Inc. First Quarter 2022 Earnings Presentation January 31, 2022 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purp

? Atkore Inc. First Quarter 2022 Earnings Presentation January 31, 2022 ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (the ?Company? or ?Atkore?) or its operational and financial information. Atkore e

Regulation FD Disclosure, 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 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

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

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 28, 2022 (January 27, 2022) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Co

ATKR / Atkore International Group Inc. / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) ATKORE INC (Name of Issuer) COM (Title of Class of Securities) 047649108 (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 Schedule is filed: [X]

Headline: Atkore Inc. Announces Acquisition of Four Star Industries

Exhibit 99.1 Headline: Atkore Inc. Announces Acquisition of Four Star Industries Harvey, Illinois, December 21, 2021/Business Wire/ - Atkore Inc. (?Atkore?), today announced the acquisition of the assets of Four Star Industries, a manufacturer of ?? ? 6? High Density Polyethylene (HDPE) conduit, primarily serving the telecommunications, utility, infrastructure and datacom markets (www.fourstarind.

Headline: Atkore Inc. Announces Acquisition of Four Star Industries

Exhibit 99.1 Headline: Atkore Inc. Announces Acquisition of Four Star Industries Harvey, Illinois, December 21, 2021/Business Wire/ - Atkore Inc. (?Atkore?), today announced the acquisition of the assets of Four Star Industries, a manufacturer of ?? ? 6? High Density Polyethylene (HDPE) conduit, primarily serving the telecommunications, utility, infrastructure and datacom markets (www.fourstarind.

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 21, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

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 22, 2021 (December 21, 2021) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (

Headline: Atkore Inc. Announces Acquisition of Sasco Tubes & Roll Forming Inc.

Exhibit 99.1 Headline: Atkore Inc. Announces Acquisition of Sasco Tubes & Roll Forming Inc. Harvey, Illinois, December 20, 2021/Business Wire/ - Atkore Inc. (?Atkore?), today announced the acquisition of Sasco Tubes & Roll Forming Inc., a Canadian manufacturer of metal framing and related products serving the electrical, mechanical, construction and solar industries (www.sascostrut.com). ?With mor

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 20, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION 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 Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

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 2, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numbe

© Atkore Inc. Investor Presentation & Company Overview December 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport

? Atkore Inc. Investor Presentation & Company Overview December 2021 ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (?Atkore?) or its operational and financial information. Atkore expressly disclaims a

Schedule of Signatories to a Director Indemnification Agreement.

SCHEDULE OF SIGNATORIES TO DIRECTOR INDEMNIFICATION AGREEMENTS 1. Betty R. Johnson 2. William E. Waltz Jr. 3. A. Mark Zeffiro 4. Jeri L. Isbell 5. Wilbert W. James Jr 6. Michael V. Schrock 7. Justin A. Kershaw 8. Scott H. Muse 9. William R. VanArsdale

© Atkore Inc. Fourth Quarter and Full Year 2021 Earnings November 18, 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it p

? Atkore Inc. Fourth Quarter and Full Year 2021 Earnings November 18, 2021 ? Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (?Atkore?) or its operational and financial information. Atkore expressly discl

Intercreditor Agreement, dated as of May 26, 2021, by and between Wells Fargo Bank, National Association, in its capacity as collateral agent for the ABL secured parties and JPMorgan Chase Bank, N.A., in its capacity as collateral agent for the Term Loan secured parties, together with additional parties from time to time party thereto.

Execution Version INTERCREDITOR AGREEMENT by and between WELLS FARGO BANK, NATIONAL ASSOCIATION as ABL Agent, and JPMORGAN CHASE BANK, N.

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 ☐ TRANSITION REPORT PURSUANT TO SECT

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 Commission file number 001-37793 Atkore Inc. (Exact name of registrant as specified in its c

Employee Performance Share Agreement under the 2020 Omnibus Incentive Plan.

Rev. 11/2020 Atkore International Group Inc. Employee Performance Share Agreement This Employee Performance Share Agreement (this ?Agreement?), dated as of the date appearing on Exhibit A hereof (the ?Grant Date?), between Atkore International Group Inc., a Delaware corporation (the ?Company?), and each employee who is employed by the Company or one of its Subsidiaries and to whom a grant has been

Second Amended and Restated Guarantee and Collateral Agreement, dated as of May 26, 2021, made by Atkore Inc., Atkore International Holdings Inc., Atkore International, Inc. and certain of its subsidiaries from time to time party thereto, in favor of Wells Fargo Bank, National Association, as collateral agent and administrative agent.

LEGALUSE # 155827293.3 Execution Version 1006148456v9 SECOND AMENDED AND RESTATED GUARANTEE AND COLLATERAL AGREEMENT made by ATKORE INC., ATKORE INTERNATIONAL HOLDINGS INC., ATKORE INTERNATIONAL, INC., and certain of its Subsidiaries, in favor of WELLS FARGO BANK, NATIONAL ASSOCIATION, as Collateral Agent and Administrative Agent Dated as of May 26, 2021 LEGALUSE # 155827293.3 i 1006148456v9 TABLE

ATKORE INC. CONSOLIDATED STATEMENTS OF OPERATIONS

Exhibit 99.1 Atkore Inc. Announces Fourth Quarter 2021 Results Fourth-Quarter Highlights ?Record quarterly net income in the fourth quarter 2021 ?Net income per diluted share increased to $4.26 from $1.11; Adjusted net income per diluted share increased to $4.39 from $1.18 ?Net income increased by $148.3 million to $202.6 million; Adjusted EBITDA increased by $194.7 million to $292.9 million Fisca

Amended and Restated Canadian Guarantee and Collateral Agreement, dated as of May 26, 2021, made by Columbia-MBF Inc. and certain Atkore International, Inc. subsidiaries, in favor of Wells Fargo Bank, National Association, as collateral agent and administrative agent.

Guarantee and Collateral Agreement, dated as of May 26, 2021, made by Atkore Inc., Atkore International Holdings Inc., Atkore International, Inc. and certain subsidiaries of Atkore Inc. from time to time party thereto, in favor of JPMorgan Chase Bank, N.A., as collateral agent and administrative agent.

Execution Version GUARANTEE AND COLLATERAL AGREEMENT made by ATKORE INC., ATKORE INTERNATIONAL HOLDINGS INC., ATKORE INTERNATIONAL, INC., and certain of its Subsidiaries, in favor of JPMORGAN CHASE BANK, N.A., as Collateral Agent Dated as of May 26, 2021 TABLE OF CONTENTS Section 1. DEFINED TERMS 2 1.1 Definitions 2 1.2 Other Definitional Provisions 9 Section 2. GUARANTEE 9 2.1 Guarantee 9 2.2 Rig

Form of Employee Restricted Stock Unit Agreement under the 2020 Omnibus Incentive Plan.

Rev. 3/2020 Atkore International Group Inc. Form of Employee Restricted Stock Unit Agreement This Employee Restricted Stock Unit Agreement (this ?Agreement?), dated as of the date of grant separately communicated (the ?Grant Date?), between Atkore International Group Inc., a Delaware corporation (the ?Company?), and each employee who is employed by the Company or one of its Subsidiaries and to who

Canadian Guarantee and Collateral Agreement, dated as of May 26, 2021, made by Columbia-MBF Inc. and certain subsidiaries of Atkore Inc., in favor of JPMorgan Chase Bank, N.A., as collateral agent and administrative agent.

CANADIAN GUARANTEE AND COLLATERAL AGREEMENT made by COLUMBIA-MBF INC., in favor of JPMORGAN CHASE BANK, N.A., as Collateral Agent Dated as of May 26, 2021 LEGAL1:67880593.5 TABLE OF CONTENTS Page SECTION 1. DEFINED TERMS 2 1.1 Definitions 2 1.2 Other Definitional Provisions 10 SECTION 2. GUARANTEE 10 2.1 Guarantee. 10 2.2 Right of Contribution 11 2.3 No Subrogation 12 2.4 Amendments, etc. with res

Form of Employee Stock Option Agreement under the 2016 Omnibus Incentive Plan.

Rev. 12/2017 Atkore International Group Inc. Form of Employee Stock Option Agreement This Employee Stock Option Agreement (this ?Agreement?), dated as of the date of grant separately communicated (the ?Grant Date?), between Atkore International Group Inc., a Delaware corporation (the ?Company?), and each employee who is employed by the Company or one of its Subsidiaries and to whom a grant has bee

Non-Employee Director Compensation Program of Atkore Inc.

ATKORE INTERNATIONAL GROUP INC. Non-Employee Director Compensation Program of Atkore Inc. (the ?Company?) Effective January 28, 2021 Each non-employee director who is not affiliated with the Company shall receive, in respect of his or her services as a non-employee director of the Company, the following: 1. Annual Cash Retainer. An annual cash retainer of $90,000, payable quarterly in arrears. 2.

Regulation FD Disclosure, 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 18, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

Atkore International Group Inc. 2016 Omnibus Equity Incentive Plan, incorporated by reference to Exhibit 10.27 to Atkore International Group Inc.’s Registration Statement on Form S-1 filed on May 5, 2016.

[Final] ATKORE INTERNATIONAL GROUP INC. 2016 OMNIBUS INCENTIVE PLAN ARTICLE I PURPOSES This Atkore International Group Inc. 2016 Omnibus Incentive Plan, as may be amended from time to time (the ?Plan?), has the following purposes: (1)To further the growth, development and financial success of Atkore International Group Inc. (the ?Company?) and its Subsidiaries (as defined herein), by providing add

List of Subsidiaries of Atkore

Exhibit 21.1 ATKORE INC. Significant Subsidiaries As of September 30, 2021 Entity Name Jurisdiction of Incorporation Acroba S.A.S. France AFC Cable Systems, Inc. Delaware Allied Luxembourg S.a.r.l. Luxembourg Allied Metal Products (Changshu) Co., Ltd. China Allied Products UK Limited United Kingdom Allied Switzerland GmbH Switzerland Allied Tube & Conduit Corporation Delaware American Pipe & Plast

© Atkore Investor Presentation & Company Overview September 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to

EX-99.1 2 atkrseptir.htm EX-99.1 © Atkore Investor Presentation & Company Overview September 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (“Atkore”) or its operational and financial information.

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): September 9, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 25, 2021 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 25, 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 001-37793 Atkore Inc. (Exact nam

Regulation FD Disclosure, 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): 8/3/2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (IRS

Three months ended (in thousands) June 25, 2021 June 26, 2020 Change % Change Net sales Electrical $ 661,163 $ 272,151 $ 389,012 142.9 % Safety & Infrastructure 193,492 113,380 80,112 70.7 % Eliminations (997) (632) (365) 57.8 % Consolidated operatio

EX-99.1 2 atkr3q21exhibit991.htm EX-99.1 Exhibit 99.1 Atkore Inc. Announces Third Quarter 2021 Results •Net sales of $853.7 million, up 121.8% versus prior year •Diluted earnings per share increased by $3.15 to $3.64; Adjusted net income per diluted share increased by $3.29 to $3.96 •Net income increased by $151.2 million to $175.3 million; Adjusted EBITDA increased by $210.5 million to $274.3 mil

© Atkore Inc. Third Quarter 2021 Earnings Presentation August 3, 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purpor

EX-99.2 3 q32021-earningspresentat.htm EX-99.2 © Atkore Inc. Third Quarter 2021 Earnings Presentation August 3, 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (“Atkore”) or its operational and fin

© Atkore Inc. Investor Presentation & Company Overview CJS Securities Investor Conference – July 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be

EX-99.1 2 atkrjuly21ir.htm EX-99.1 © Atkore Inc. Investor Presentation & Company Overview CJS Securities Investor Conference – July 2021 © Atkore Cautionary Statements This presentation is provided for general informational purposes only and it does not include every item which may be of interest, nor does it purport to present full and fair disclosure with respect to Atkore Inc. (“Atkore”) or its

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): July 13, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number)

Amendment Number One to Credit Agreement, dated as of May 26, 2021, among Atkore International Inc., the subsidiaries of Atkore International Inc., the lenders and other financial institutions party thereto and Wells Fargo Bank, National Association, as swingline lender, issuing lender, administrative agent and collateral agent thereunder, incorporated by reference to Exhibit 10.2 to Atkore Inc.’s Current Report on Form 8-K filed on June 2, 2021.

Exhibit 10.2 AMENDMENT NUMBER ONE TO CREDIT AGREEMENT THIS AMENDMENT NUMBER ONE TO CREDIT AGREEMENT (this ?Amendment?), dated as of May 26, 2021, is entered into by and among ATKORE INTERNATIONAL, INC., a Delaware corporation (together with its successors and assigns, the ?Parent Borrower?), the Subsidiary Borrowers party hereto (together with the Parent Borrower, jointly and severally, collective

Indenture, dated as of May 26, 2021, by and among Atkore Inc., the subsidiary guarantors and the Bank of New York Mellon Trust Company, N.A., as trustee, incorporated by reference to Exhibit 4.1 to Atkore Inc.’s Current Report on Form 8-K filed on June 2, 2021.

EX-4.1 2 ex41indenture.htm EX-4.1 Exhibit 4.1 INDENTURE Dated as of May 26, 2021 Among ATKORE INC. THE SUBSIDIARY GUARANTORS PARTY HERETO and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee 4.25% SENIOR NOTES DUE 2031 i TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE ................................................................. 1 SECTION 1.1. Definitions

Entry into a Material Definitive Agreement, Termination of 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

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): June 2, 2021 (May 26, 2021) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission

Term Loan Credit Agreement, dated as of May 26, 2021, by and among Atkore Inc., as parent, Atkore International Inc., as borrower, the several lenders party thereto and JPMorgan Chase Bank, N.A, as administrative agent and collateral agent, incorporated by reference to Exhibit 10.1 to Atkore Inc.’s Current Report on Form 8-K filed on June 2, 2021.

Exhibit 10.1 TERM LOAN CREDIT AGREEMENT among ATKORE INC., as Parent, ATKORE INTERNATIONAL, INC., as Borrower, The Several Lenders from Time to Time Parties Hereto, and JPMORGAN CHASE BANK, N.A., as Administrative Agent and Collateral Agent Dated as of May 26, 2021 FIFTH THIRD BANK, CREDIT SUISSE LOAN FUNDING LLC, ROYAL BANK OF CANADA AND CITIGROUP GLOBAL MARKETS INC., as Co-Documentation Agents,

Conflict Minerals Report for the calendar year ended December 31, 2020

EX-1.01 2 conflictmineralsreport1012.htm EX-1.01 Atkore Inc. Conflict Minerals Report for the Year Ended December 31, 2020 This report for the calendar year ended December 31, 2020, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange Commission (“SEC”) to implement reporting and disclosure requirements r

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporati

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 16100 South Lathrop Avenue Harvey, Illinois 60426 (Address of principal executive offic

Financial Statements and Exhibits, Other Events

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 18, 2021 (May 17, 2021) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission

Atkore Inc. Announces Intention To Offer Senior Notes

Atkore Inc. Announces Intention To Offer Senior Notes HARVEY, Ill.-(BUSINESS WIRE)-Atkore Inc. (the ?Company?) (NYSE: ATKR) today announced that it intends, subject to market and other customary conditions, to offer (the ?Offering?) $400 million in aggregate principal amount of Senior Notes due 2031 (the ?Notes?). The Company intends to use the net proceeds of the Offering to repay a portion of th

Atkore Inc. Announces Pricing of Notes Offering

Atkore Inc. Announces Pricing of Notes Offering HARVEY, Ill.-(BUSINESS WIRE)-Atkore Inc. (the ?Company?) (NYSE: ATKR) today announced that it has priced its previously announced notes offering and has agreed to issue and sell $400 million aggregate principal amount of 4.25% Senior Notes due 2031 (the ?Notes?). The Notes will be sold to investors at par. The Company intends to use the net proceeds

© Atkore Inc. Second Quarter 2021 Earnings Presentation April 29, 2021 © Atkore Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our co

EX-99.2 3 q22021-earningspresentat.htm EX-99.2 © Atkore Inc. Second Quarter 2021 Earnings Presentation April 29, 2021 © Atkore Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements other than statements of historical fact included in this presentation are forwar

Three months ended (in thousands) March 26, 2021 March 27, 2020 Change % Change Net sales Electrical $ 487,500 $ 323,218 $ 164,282 50.8 % Safety & Infrastructure 152,700 133,130 19,570 14.7 % Eliminations (657) (694) 37 (5.3) % Consolidated operation

EX-99.1 2 atkr2q21exhibit991.htm EX-99.1 Exhibit 99.1 Atkore Inc. Announces Second Quarter 2021 Results •Net sales of $639.5 million, up 40.4% versus prior year •Diluted earnings per share increased by $1.78 to $2.58; Adjusted net income per diluted share increased by $1.80 to $2.79 •Net income increased by $85.7 million to $124.9 million; Adjusted EBITDA increased by $106.4 million to $193.4 mill

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 26, 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 001-37793 Atkore Inc. (Exact na

Regulation FD Disclosure, 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): April 29, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number)

Atkore Fourth Amended and Restated Bylaws (Effective February 16 2021)

EX-3.2 3 atkorebylawseffectivefebru.htm EX-3.2 ATKORE INC. FOURTH AMENDED AND RESTATED BY-LAWS Effective as of February 16, 2021 ATKORE INC. BY-LAWS Table of Contents Page Article I MEETINGS OF STOCKHOLDERS Section 1.01. Annual Meetings. 1 Section 1.02. Special Meetings. 1 Section 1.03. Participation in Meetings by Remote Communication. 1 Section 1.04. Notice of Meetings; Waiver of Notice. 2 Secti

Atkore Fourth Amended and Restated Certificate of Incorporation (effective February 16 2021)

FOURTH AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ATKORE INC. ?. Name. The name of the Corporation is Atkore Inc. ?. Registered Office. The Corporation?s registered office in the State of Delaware is The Corporation Trust Company, 1209 Orange Street, in the City of Wilmington, County of New Castle, zip code 19801. The name of its registered agent at such address is The Corporation Trust

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): February 24, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

Vice President – Communications

Contact: Lisa Winter Vice President – Communications 708 225-2453 John Deitzer Vice President – Treasury and Investor Relations 708 225-2124 Atkore Inc.

© Atkore Inc. Investor Presentation & Company Overview February 2021 2© Atkore Inc. Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond ou

EX-99.1 2 atkrirx022021.htm EX-99.1 © Atkore Inc. Investor Presentation & Company Overview February 2021 2© Atkore Inc. Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements other than statements of historical fact included in this presentation are forward-looki

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): February 17, 2021 Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Numb

Certificate of Amendment of Third Amended and Restated Certificate of Incorporation of Atkore International Group Inc.

EX-3.1 2 certificateofamendment02-1.htm EX-3.1 CERTIFICATE OF AMENDMENT OF THIRD AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF ATKORE INTERNATIONAL GROUP INC. Pursuant to Section 242 of the General Corporation Law of the State of Delaware, Atkore International Group Inc. (the “Corporation”), a corporation duly organized and existing under the General Corporation Law of the State of Delaware

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, 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): February 12, 2021 (February 11, 2021) Atkore Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) ATKORE INTL GROUP INC (Name of Issuer) COM (Title of Class of Securities) 047649108 (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 Schedule is

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 3)* Name of issuer: Atkore International Group Inc. Title of Class of Securities: Common Stock CUSIP Number: 047649108 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

Three months ended (in thousands) December 25, 2020 December 27, 2019 Change % Change Net sales Electrical $ 387,145 $ 324,547 $ 62,598 19.3 % Safety & Infrastructure 124,765 123,508 1,257 1.0 % Eliminations (828) (607) (221) 36.4 % Consolidated oper

Exhibit 99.1 Atkore International Group Inc. Announces First Quarter 2021 Results •Net sales of $511.1 million, up 14.2% versus prior year •Diluted earnings per share of $1.75; Adjusted net income per diluted share of $1.88 •Net income of $85.1 million; Adjusted EBITDA of $137.0 million •Board of Directors approved share repurchase program on January 28, 2021, under which the Company may repurchas

1 First Quarter 2021 Earnings Presentation February 2, 2021 2 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All stateme

q12021-earningspresentat 1 First Quarter 2021 Earnings Presentation February 2, 2021 2 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 25, 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 001-37793 Atkore Internation

Regulation FD Disclosure, 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 2, 2021 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (C

POWER OF ATTORNEY

Exhibit 24.1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints William E. Waltz Jr., David P. Johnson and Daniel S. Kelly, and each of them, his true and lawful attorney-in-fact and agent, acting alone, with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in any and all ca

- FORM S-8

As filed with the Securities and Exchange Commission on January 29, 2021 Registration No.

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

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 28, 2021 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (C

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Regulation FD Disclosure, Financial Statements and Exhibits - 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): December 3, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (C

1 Investor Presentation & Company Overview December 2020 2 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements

atkrdec2021ir 1 Investor Presentation & Company Overview December 2020 2 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

ATKORE INTERNATIONAL GROUP INC. CONSOLIDATED STATEMENTS OF OPERATIONS

Exhibit 99.1 Atkore International Group Inc. Announces Fourth Quarter 2020 Results Fourth-Quarter Highlights •Record quarterly net income in the fourth quarter 2020 •Net income per diluted share increased to $1.11 from $0.94; Adjusted net income per diluted share increased to $1.18 from $1.01 •Net income increased by $8.2 million to $54.2 million; Adjusted EBITDA increased by $9.4 million to $98.2

Regulation FD Disclosure, 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 19, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (

Fourth Quarter 2020 Earnings Presentation November 19, 2020 1 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All stateme

EX-99.2 3 q42020-earningspresentat.htm EX-99.2 Fourth Quarter 2020 Earnings Presentation November 19, 2020 1 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements other than statements of historical fact included in this presentation are forward-looking statemen

Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.

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 Commission file number 001-37793 Atkore International Group Inc. (Exact name of registrant a

List of Subsidiaries of Atkore International Group Inc. as of September 30, 2020.

Exhibit 21.1 ATKORE INTERNATIONAL GROUP INC. Significant Subsidiaries As of September 30, 2020 Entity Name Jurisdiction of Incorporation Acroba S.A.S. France AFC Cable Systems, Inc. Delaware Allied Luxembourg S.a.r.l. Luxembourg Allied Metal Products (Changshu) Co., Ltd. China Allied Products UK Limited United Kingdom Allied Switzerland GmbH Switzerland Allied Tube & Conduit Corporation Delaware A

1

Exhibit 99.1 Headline: Atkore International Group Inc. Acquires Queen City Plastics, Inc. Harvey, Illinois, October 22, 2020/Business Wire/ - Atkore International Group Inc. (“Atkore”), today announced that it has acquired the assets of Queen City Plastics, Inc., a manufacturer of PVC conduit, elbows and fittings for the electrical market (www.QueenCityPlastics.com). “With more than 50 years in th

Regulation FD Disclosure, Financial Statements and Exhibits - 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): October 22, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (C

Regulation FD Disclosure, Financial Statements and Exhibits - 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): September 9, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (

Investor Presentation & Company Overview September 9, 2020 1 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statemen

atkrseptember2020ir Investor Presentation & Company Overview September 9, 2020 1 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

Canadian Term Loan Guarantee and Collateral Agreement, dated as of August 28, 2020, made by Columbia-MBF Inc. and certain subsidiaries of Atkore International, Inc. from time to time party thereto, in favor of Deutsche Bank AG New York Branch, as collateral agent.

EX-10.4 5 atkrform8-kexhibit104.htm EX-10.4 EXECUTION VERSION CANADIAN TERM LOAN GUARANTEE AND COLLATERAL AGREEMENT made by COLUMBIA-MBF INC., in favor of DEUTSCHE BANK AG NEW YORK BRANCH, as Collateral Agent Dated as of August 28, 2020 TABLE OF CONTENTS Page SECTION 1. DEFINED TERMS 2 1.1 Definitions 2 1.2 Other Definitional Provisions 10 SECTION 2. GUARANTEE 10 2.1 Guarantee. 11 2.2 Right of Con

Amended and Restated Credit Agreement, dated as of August 28, 2020, among Atkore International, Inc., the subsidiary borrowers from time to time party thereto, the several banks and other financial institutions from time to time party thereto and Wells Fargo Bank, National Association, as swingline lender, issuing lender, administrative agent and collateral agent, incorporated by reference to Exhibit 10.1 to Atkore International Group Inc.’s Current Report on Form 8-K filed on September 1, 2020

Execution Version $325,000,000 AMENDED AND RESTATED CREDIT AGREEMENT among ATKORE INTERNATIONAL, INC.

Canadian Guarantee and Collateral Agreement, dated as of August 28, 2020, made by Columbia-MBF Inc. and certain subsidiaries of Atkore International, Inc. from time to time party thereto, in favor of Wells Fargo Bank, National Association, as collateral agent and administrative agent

EXECUTION VERSION CANADIAN GUARANTEE AND COLLATERAL AGREEMENT made by COLUMBIA-MBF INC.

Regulation FD Disclosure, 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, 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): September 1, 2020 (August 28, 2020) Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction o

Amended and Restated Guarantee and Collateral Agreement, dated as of August 28, 2020, made by Atkore International Holdings Inc., Atkore International, Inc. and certain of its subsidiaries from time to time party thereto, in favor of Wells Fargo Bank, National Association, as collateral agent and administrative agent

Execution Version AMENDED AND RESTATED GUARANTEE AND COLLATERAL AGREEMENT made by ATKORE INTERNATIONAL HOLDINGS INC.

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, 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 20, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Co

1

Exhibit 99.1 Headline: Atkore International Announces Retirement of Peter Lariviere, President-Cable Solutions HARVEY, Ill.-(BUSINESS WIRE) - Atkore International (NYSE: ATKR) (“Atkore”) today announced that Peter Lariviere, president-Cable Solutions business, will retire on January 2, 2021. “Since joining seven years ago, Peter has helped Atkore grow through new product offerings, strategic acqui

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 26,2020 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 001-37793 Atkore International Gr

Regulation FD Disclosure, 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 4, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Com

Three months ended (in thousands) June 26, 2020 June 28, 2019 Change % Change Net sales Electrical Raceway $ 286,046 $ 373,229 $ (87,183) (23.4) % Mechanical Products & Solutions 99,487 120,596 (21,109) (17.5) % Eliminations (634) (334) (300) 89.8 %

Exhibit 99.1 Atkore International Group Inc. Announces Third Quarter 2020 Results •Ending cash balance of $237.3 million; net cash provided by operating activities of $156.0 million; free cash flow of $130.4 million •Diluted earnings per share of $0.49; Adjusted net income per diluted share of $0.67 •Net income of $24.1 million; Adjusted EBITDA of $63.7 million •Full-year Net Sales, Adjusted EBITD

Third Quarter 2020 Earnings Presentation August 4, 2020 1 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements

q32020-earningspresentat Third Quarter 2020 Earnings Presentation August 4, 2020 1 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

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): June 3, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commi

Investor Presentation & Company Overview June 2020 6/2/2020 © Atkore International, Inc. 1 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are be

investoroverviewpresenta Investor Presentation & Company Overview June 2020 6/2/2020 © Atkore International, Inc.

- SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commission File Number) (IRS Employer Identification No.) 16100 South Lathrop Avenue Harvey, Illinois 60426 (Address of princ

Conflict Minerals Report for the calendar year ended December 31, 2019

atkrconflictminerals201 Atkore International Group Inc. Conflict Minerals Report for The Year Ended December 31, 2019 This report for the calendar year ended December 31, 2019, is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934 (the “Rule”). The Rule was adopted by the Securities and Exchange Commission (“SEC”) to implement reporting and disclosure requirements relate

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): May 6, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commis

Second Quarter 2020 Earnings Presentation & Investor Overview May 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. Al

atkrir05062020 Second Quarter 2020 Earnings Presentation & Investor Overview May 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

Regulation FD Disclosure, 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 5, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (Commis

Second Quarter 2020 Earnings Presentation May 5, 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements othe

q22020earningspresentati Second Quarter 2020 Earnings Presentation May 5, 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

Three months ended (in thousands) March 27, 2020 March 29, 2019 Change % Change Net sales Electrical Raceway $ 339,705 $ 353,514 $ (13,809 ) (3.9 )% Mechanical Products & Solutions 116,649 116,190 459 0.4 % Eliminations (700 ) (395 ) (305 ) 77.2 % Co

Exhibit 99.1 Atkore International Group Inc. Announces Second Quarter 2020 Results • Diluted earnings per share increased by $0.19 to $0.80; Adjusted net income per diluted share increased by $0.16 to $0.99 • Net income increased by $9.6 million, or 32.6%, to $39.2 million; Adjusted EBITDA increased by $9.9 million, or 12.9%, to $87.0 million • Full-year Net Sales, Adjusted EBITDA and Adjusted net

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 27, 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 001-37793 Atkore International

ATKR / Atkore International Group Inc. / 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.: 2)* Name of issuer: Atkore International Group Inc Title of Class of Securities: Common Stock CUSIP Number: 047649108 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

Investor Presentation & Company Overview February 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements oth

atkrinvestorpresentation Investor Presentation & Company Overview February 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

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): February 6, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (C

Annual Report - 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K/A ☒ 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 Commission file number 001-37793 Atkore International Group Inc. (Exact name of registrant

ATKR / Atkore International Group Inc. / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) ATKORE INTL GROUP INC (Name of Issuer) COM (Title of Class of Securities) 047649108 (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 Schedule is

First Quarter 2020 Earnings Presentation February 4, 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements

q12020earningspresentati First Quarter 2020 Earnings Presentation February 4, 2020 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.

Description of Capital Stock of Atkore International Group Inc.

DESCRIPTION OF CAPITAL STOCK OF ATKORE INTERNATIONAL GROUP INC. The following descriptions of our capital stock, Third Amended and Restated Certificate of Incorporation (“certificate of incorporation”) and Third Amended and Restated By-laws (“by-laws”) are intended as summaries only and are qualified in their entirety by reference to our certificate of incorporation and by-laws. Authorized Capital

Regulation FD Disclosure, 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, 2020 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (C

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 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 27, 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 001-37793 Atkore Internation

Three months ended (in thousands) December 27, 2019 December 28, 2018 Change % Change Net sales Electrical Raceway $ 341,376 $ 343,406 $ (2,030 ) (0.6 )% Mechanical Products & Solutions 106,660 108,813 (2,153 ) (2.0 )% Eliminations (588 ) (191 ) (397

Exhibit 99.1 Atkore International Group Inc. Announces First Quarter 2020 Results • Diluted earnings per share increased by $0.17 to $0.71; Adjusted net income per diluted share increased by $0.20 to $0.94 • Net income increased by $7.8 million, or 29.1%, to $34.8 million; Adjusted EBITDA increased by $7.7 million, or 11.0%, to $77.7 million • Full-year Adjusted EBITDA guidance increased to $340.0

Submission of Matters to a Vote of Security Holders

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, 2020 (January 30, 2020) Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction o

ATKR / Atkore International Group Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Atkore International Group Inc. 2020 Omnibus Incentive Plan, incorporated by reference to Annex A to Atkore International Group Inc.’s Definitive Proxy Statement on Schedule 14A filed on December 13, 2019.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

ATKR / Atkore International Group Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

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 3, 2019 Atkore International Group Inc. (Exact name of registrant as specified in its charter) Delaware 001-37793 90-0631463 (State or other jurisdiction of incorporation) (C

Investor Presentation & Company Overview December 2019 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements oth

EX-99.1 2 atkrinvestorpresentation.htm EXHIBIT 99.1 Investor Presentation & Company Overview December 2019 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All statements other than statements of historical fact included in this presentation are forward-looking statements

Fourth Quarter and FY 2019 Earnings Presentation November 22, 2019 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control. All st

q42019earningspresentati Fourth Quarter and FY 2019 Earnings Presentation November 22, 2019 Cautionary Statements This presentation contains forward-looking statements that are subject to known and unknown risks and uncertainties, many of which are beyond our control.