FMR LLC and Abigail P. Johnson Disclose 10.3% Ownership in ROCK

Rhea-AI Filing Summary

Gibraltar Industries Inc. Schedule 13G/A reports that FMR LLC and Abigail P. Johnson beneficially own 3,052,702.76 shares of Gibraltar common stock, representing 10.3% of the class. FMR LLC reports 3,051,406 shares with sole voting power and 3,052,702.76 shares with sole dispositive power; Abigail P. Johnson reports sole dispositive power for 3,052,702.76 shares and no voting power. The filing states the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. Exhibit references and powers of attorney are noted; Exhibit 99 contains a 13d-1(k)(1) agreement.

Positive

• Material disclosure: Reporting of a 10.3% beneficial ownership provides transparency to the market
• Clear voting/dispositive breakdown: FMR LLC and Abigail P. Johnson specify sole voting and dispositive powers
• Compliance and documentation: Powers of attorney and Exhibit 99 referenced, indicating formal recordkeeping

Negative

• None.

Insights

Financial Analyst

TL;DR: A large, passive 10.3% stake is disclosed by an established investment manager; ownership is significant but assertedly non-control.

FMR LLC's disclosure of 3.05 million shares (10.3%) is material in size relative to the public float. The filing clarifies sole dispositive power and near-equal sole voting power for FMR LLC, while Abigail P. Johnson holds dispositive but not voting power. The certification that holdings are in the ordinary course and not intended to influence control reduces takeover/activation signal. Investors should treat this as a substantial passive stake held by an investment manager rather than an explicit activist position.

Corporate Governance Expert

TL;DR: Disclosure shows a >5% ownership threshold crossed, with formal certifications and POAs; governance implications are limited per the filer.

The schedule correctly notifies the market of an ownership concentration above the 5% threshold, triggering reporting obligations. The filing includes powers of attorney and references exhibits for agreements, demonstrating compliance. The explicit statement that the position was not acquired to influence control is important for governance interpretation, though future changes in intent or coordination would require amended filings.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

GIBRALTAR INDUSTRIES INC

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

374689107

(CUSIP Number)

08/29/2025

(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. 374689107

1

Names of Reporting Persons

FMR 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 3,051,406.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,052,702.76
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,052,702.76

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)

10.3 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP No. 374689107

1

Names of Reporting Persons

Abigail P. Johnson

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 0.00
7	Sole Dispositive Power 3,052,702.76
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,052,702.76

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)

10.3 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GIBRALTAR INDUSTRIES INC
(b)	Address of issuer's principal executive offices: 3556 LAKE SHORE ROAD,PO BOX 2028,BUFFALO,NY,USA,14219-0228
Item 2.
(a)	Name of person filing: FMR LLC
(b)	Address or principal business office or, if none, residence: 245 Summer Street, Boston, Massachusetts 02210
(c)	Citizenship: Not applicable
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP No.: 374689107
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: 3052702.76
(b)	Percent of class: 10.3 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Please see the responses to Items 5 and 6 on the cover page.
	(ii) Shared power to vote or to direct the vote: 0.00
	(iii) Sole power to dispose or to direct the disposition of: 3052702.76
	(iv) Shared power to dispose or to direct the disposition of: 0.00
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the COMMON STOCK of GIBRALTAR INDUSTRIES INC. No one other person's interest in the COMMON STOCK of GIBRALTAR INDUSTRIES INC is more than five percent of the total outstanding COMMON STOCK.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See attached Exhibit 99.
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.

FMR LLC

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 3, 2023, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:	09/05/2025

Abigail P. Johnson

Signature:	Stephanie J. Brown
Name/Title:	Duly authorized under Power of Attorney effective as of January 26, 2023, by and on behalf of Abigail P. Johnson**
Date:	09/05/2025

Comments accompanying signature: * This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 10, 2023, accession number: 0000315066-23-000003. ** This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on January 31, 2023, accession number: 0000315066-23-000038.

Exhibit Information

Please see Exhibit 99 for 13d-1(k) (1) agreement.

FAQ

What stake does FMR LLC report in Gibraltar Industries (ROCK)?

FMR LLC reports beneficial ownership of 3,052,702.76 shares, representing 10.3% of Gibraltar's common stock.

Does Abigail P. Johnson have voting power over the reported ROCK shares?

Abigail P. Johnson reports 0 shares of sole or shared voting power and 3,052,702.76 shares of sole dispositive power.

Did the filing state any intent to influence control of Gibraltar (ROCK)?

The filing certifies 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.

Are there exhibits or powers of attorney referenced in the Schedule 13G/A for ROCK?

Yes. The filing references powers of attorney incorporated by reference and notes Exhibit 99 for a 13d-1(k)(1) agreement.

When was the Schedule 13G/A signed for Gibraltar Industries (ROCK)?

Signatures are dated 09/05/2025 for both FMR LLC and Abigail P. Johnson as reported in the filing.