Gibraltar Industries (ROCK) GC granted 437.86 deferred RSUs

Rhea-AI Filing Summary

Gibraltar Industries General Counsel receives deferred RSU award

GIBRALTAR INDUSTRIES, INC. reported that General Counsel and Vice President Katherine Bolanowski acquired 437.86 matching restricted stock units on March 6, 2026 under the company’s 2018 Management Stock Purchase Plan, tied to deferrals of base salary and annual cash incentive compensation.

These restricted stock units are forfeited if her officer service ends before the fifth anniversary of her vesting start date. If service continues beyond that date, the units are settled in cash—either in a lump sum or in five or ten annual installments—based on the fair market value of one share of Gibraltar’s common stock at the time her officer service ends.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bolanowski Katherine

(Last) (First) (Middle)

3556 LAKE SHORE ROAD

P.O. BOX 2028

(Street)

BUFFALO NY 14219-0228

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
GIBRALTAR INDUSTRIES, INC. [ ROCK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel, VP, Secretary

3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock								15,989	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit (2018 MSPP Match)(1)	(2)	03/06/2026		A		437.86(3)		(2)	(2)	Common Stock	437.86	$0	6,780.95	D

Explanation of Responses:

1. Represents matching restricted stock units allocated to the Reporting Person with respect to the Reporting Person's deferral of a portion of their annual base salary and annual cash incentive compensation pursuant to the Company's 2018 Management Stock Purchase Plan.

2. Restricted stock units are forfeited if Reporting Person's service as an officer of the Company is terminated prior to the fifth (5th) anniversary of the Reporting Person's vesting commencement date. If service as an officer continues beyond the fifth (5th) anniversary of the Reporting Person's vesting commencement date, restricted stock units are payable solely in cash in one lump sum payment or in five (5) or ten (10) consecutive, substantially equal annual installments, whichever distribution form is elected by the Reporting Person, beginning six (6) months following termination of service. Each restricted stock unit is converted to cash in an amount equal to the fair market value of one share of the Company's common stock, as defined in the Company's 2018 Management Stock Purchase Plan, on the date of termination of the Reporting Person's service as an officer of the Company.

3. Represents matching restricted stock units allocated to the Reporting Person with respect to the Reporting Person's deferral of their annual cash incentive compensation pursuant to the Company's 2018 Management Stock Purchase Plan.

	/s/ Jeffrey J. Watorek, Attorney-in-Fact for Katherine E. Bolanowski	03/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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FAQ

What insider transaction did Gibraltar Industries (ROCK) report for Katherine Bolanowski?

Gibraltar Industries reported that General Counsel Katherine Bolanowski acquired 437.86 matching restricted stock units. The award was granted under the company’s 2018 Management Stock Purchase Plan in connection with her deferral of base salary and annual cash incentive compensation.

How many restricted stock units did the Gibraltar Industries (ROCK) General Counsel receive?

Katherine Bolanowski received 437.86 matching restricted stock units. These units are linked to her decision to defer portions of her annual base salary and cash incentive compensation under Gibraltar Industries’ 2018 Management Stock Purchase Plan.

What is the source of the matching RSUs reported for Gibraltar Industries (ROCK) insider Katherine Bolanowski?

The matching restricted stock units arise from Bolanowski’s deferral of base salary and annual cash incentive compensation. Under Gibraltar Industries’ 2018 Management Stock Purchase Plan, these deferrals generate matching RSUs credited to the reporting person’s account.

What are the vesting and forfeiture conditions on the Gibraltar Industries (ROCK) matching RSUs?

The restricted stock units are forfeited if Bolanowski’s service as an officer ends before the fifth anniversary of her vesting commencement date. Continued officer service beyond that fifth anniversary preserves the units and allows eventual cash settlement.

How will the Gibraltar Industries (ROCK) restricted stock units for Katherine Bolanowski be settled?

If service conditions are met, the RSUs are payable solely in cash, either in one lump sum or five or ten annual installments. Each unit converts to cash equal to the fair market value of one Gibraltar common share at termination of officer service.

Does the Gibraltar Industries (ROCK) Form 4 indicate stock buying or selling by Katherine Bolanowski?

The Form 4 reflects an acquisition of 437.86 restricted stock units as a grant or award, not an open-market stock purchase or sale. The units are part of deferred compensation under the 2018 Management Stock Purchase Plan and are ultimately cash-settled.