[SCHEDULE 13G/A] Atkore Inc. SEC Filing

Rhea-AI Filing Summary

Atkore Inc. Schedule 13G/A shows Gates Capital entities and Jeffrey L. Gates report collective beneficial ownership of 2,628,189 shares, representing 7.8% of Atkore's common stock based on 33,655,743 shares outstanding as of July 30, 2025. The stake is held with shared voting and dispositive power (no sole power). The filing states the shares were acquired and are held in the ordinary course of business and were not acquired to change or influence control of the issuer. The filers executed a joint filing agreement and certified accuracy of the disclosure.

Positive

• Material disclosure: Reports a clear, quantified ownership position of 2,628,189 shares (7.8%).
• Compliance and transparency: Filed a Schedule 13G/A with a joint filing agreement and signed certifications.
• Non-activist stance: Certification states shares were not acquired to change or influence control.

Negative

• No sole voting power: Reporting persons disclose 0 shares of sole voting power; all voting/dispositive power is shared, indicating no unilateral control.

Insights

Financial Analyst

TL;DR: Gates Capital reports a meaningful 7.8% passive stake in Atkore with shared voting power, disclosed under Schedule 13G/A.

The filing documents a non-activist ownership position of 2,628,189 shares (7.8%) using the Schedule 13G/A form, which is appropriate for holdings not intended to influence control. The percentage is material relative to typical free-float thresholds that trigger market attention. Shared voting and dispositive power indicates the position is held at the fund/manager level rather than by a single controlling individual. No transactions, financing terms, or change-of-control intentions are disclosed, limiting immediate catalytic impact on Atkore's governance or strategy.

Corporate Governance Expert

TL;DR: The disclosure is a standard, compliant joint filing showing a >5% passive ownership without activist intent.

The Schedule 13G/A includes a joint filing agreement among Gates Capital entities and Jeffrey L. Gates, assigning shared responsibility for amendments and accuracy. The certification that the position was not acquired to influence control aligns with Schedule 13G treatment. The absence of sole voting power means the reporting persons are not asserting unilateral control, reducing immediate governance risk to Atkore. Investors should note the formal disclosure itself, but the filing contains no proposals, nominations, or coordinated governance actions.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

Atkore Inc.

(Name of Issuer)

Common Stock, $.01 par value per share

(Title of Class of Securities)

047649108

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 047649108

1

Names of Reporting Persons

Gates Capital Management, L.P.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,628,189.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,628,189.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,628,189.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.8 %

12

Type of Reporting Person (See Instructions)

IA, PN

SCHEDULE 13G

CUSIP No. 047649108

1

Names of Reporting Persons

Gates Capital Management GP, LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,628,189.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,628,189.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,628,189.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.8 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP No. 047649108

1

Names of Reporting Persons

Gates Capital Management, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,628,189.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,628,189.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,628,189.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.8 %

12

Type of Reporting Person (See Instructions)

IA, CO

SCHEDULE 13G

CUSIP No. 047649108

1

Names of Reporting Persons

Jeffrey L. Gates

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,628,189.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,628,189.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,628,189.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.8 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Atkore Inc.
(b)	Address of issuer's principal executive offices: 16100 South Lathrop Avenue, Harvey, Illinois, 60426
Item 2.
(a)	Name of person filing: This Statement is filed by each of the entities and persons listed below, all of whom together are referred to herein as the "Reporting Persons": (i) Gates Capital Management, L.P., a Delaware limited partnership ("Gates Capital"), with respect to the shares of Common Stock held by certain funds as to which Gates Capital serves as investment manager (the "Gates Capital Funds"); (ii) Gates Capital Management GP, LLC, a Delaware limited liability company ("the General Partner"), which is the general partner of Gates Capital, with respect to the shares of Common Stock directly held by the Gates Capital Funds; (iii) Gates Capital Management, Inc., a Delaware corporation ("the Corporation"), is the managing member of the General Partner, with respect to the shares of Common Stock directly held by the Gates Capital Funds; and (iv) Jeffrey L. Gates, a United States citizen, who serves as the President of the Corporation, with respect to the shares of Common Stock directly held by the Gates Capital Funds.
(b)	Address or principal business office or, if none, residence: The address of the principal business office of each of the Reporting Persons is c/o Gates Capital Management, L.P., 1177 Avenue of the Americas, 46th Floor, New York, New York 10036.
(c)	Citizenship: (i) Gates Capital - a Delaware limited partnership (ii) The General Partner - a Delaware limited liability company (iii) The Corporation - a Delaware corporation (iv) Jeffrey L. Gates - a United States citizen The filing of this statement should not be construed as an admission that any of the Reporting Persons is, for purposes of Section 13 of the Act, the beneficial owner of the Common Stock reported herein.
(d)	Title of class of securities: Common Stock, $.01 par value per share
(e)	CUSIP No.: 047649108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 2,628,189
(b)	Percent of class: 7.8 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 2,628,189
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 2,628,189 The percentage set forth this SCHEDULE 13G/A is calculated based upon the 33,655,743 shares of Common Stock issued and outstanding as of July 30, 2025 as disclosed in the Company's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on August 5, 2025. The information required by Items 4(a) - (c) is set forth in Rows 5 - 11 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each Reporting Person.
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Gates Capital Management, L.P.

Signature:	/s/ Jeffrey L. Gates
Name/Title:	Jeffrey L. Gates- President
Date:	08/14/2025

Gates Capital Management GP, LLC

Signature:	/s/ Jeffrey L. Gates
Name/Title:	Jeffrey L. Gates- President
Date:	08/14/2025

Gates Capital Management, Inc.

Signature:	/s/ Jeffrey L. Gates
Name/Title:	Jeffrey L. Gates- President
Date:	08/14/2025

Jeffrey L. Gates

Signature:	/s/ Jeffrey L. Gates
Name/Title:	Jeffrey L. Gates
Date:	08/14/2025

Exhibit Information

EXHIBIT 1 JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on SCHEDULE 13G/A is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on SCHEDULE 13G/A shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason to believe that such information is inaccurate. DATE: 8/14/2025 Gates Capital Management, L.P. By: Gates Capital Management GP, LLC, its general partner By: Gates Capital Management, Inc., its managing member By: /s/ Jeffrey L. Gates Name: Jeffrey L. Gates Title: President Gates Capital Management GP, LLC By: Gates Capital Management, Inc., its managing member By: /s/ Jeffrey L. Gates Name: Jeffrey L. Gates Title: President Gates Capital Management, Inc. By: /s/ Jeffrey L. Gates Name: Jeffrey L. Gates Title: President Jeffrey L. Gates By: /s/ Jeffrey L. Gates

FAQ

How many Atkore (ATKR) shares do Gates Capital and affiliates report owning?

They report beneficial ownership of 2,628,189 shares, equal to 7.8% of outstanding common stock.

Does the filing indicate Gates Capital intends to influence control of Atkore (ATKR)?

No. The Schedule 13G/A certification states the shares were not acquired and are not held to change or influence control of the issuer.

What voting and disposition powers are reported by Gates Capital on ATKR shares?

The filers report 0 sole voting or dispositive power and 2,628,189 shares of shared voting and dispositive power.

On what share count is the 7.8% ownership percentage based?

The percentage is calculated using 33,655,743 shares outstanding as of July 30, 2025, per Atkore's Quarterly Report referenced in the filing.

Who signed the Schedule 13G/A for Gates Capital and affiliates?

The filing is signed by Jeffrey L. Gates in his capacity as President for the reporting entities, dated August 14, 2025.