ROCK CEO granted 512 matching RSUs in MSPP

Bosway William T reported acquisition or exercise transactions in this Form 4 filing.

Accepted by SEC EDGAR 04/01/2026 - 02:54 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Bosway William T reported acquisition or exercise transactions in this Form 4 filing.

Gibraltar Industries CEO William T. Bosway received 512.210 matching restricted stock units on March 31, 2026 under the company’s 2018 Management Stock Purchase Plan, tied to deferral of salary and cash incentive pay. After this grant, he holds 44,493.720 matching RSUs, 69,271.420 additional RSUs, and 230,585 common shares directly.

Insider Trade Summary

Grant/Award: 512.21 shares

Grant/Award 1 txn

Insider Bosway William T

Role President and CEO

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Unit (2018 MSPP Match)	512.21	$0.00	$0.00
Holding	Restricted Stock Unit (2018 MSPP)	--	--	--
Holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Unit (2018 MSPP Match) — 44,493.72 contracts (Direct); Restricted Stock Unit (2018 MSPP) — 69,271.42 contracts (Direct); Common Stock — 230,585 shares (Direct)

Holdings Before and After: Restricted Stock Unit (2018 MSPP Match), 43,981.51 to 44,493.72 contracts (Direct)

Footnotes (5)

1. F1. 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. F2. 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. F3. 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 pursuant to the Company's 2018 Management Stock Purchase Plan.
4. F4. Represents 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.
5. F5. 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.

Key Figures

New RSU grant: 512.210 units Matching RSUs after grant: 44,493.720 units Other RSUs outstanding: 69,271.420 units +2 more

5 metrics

New RSU grant 512.210 units Matching restricted stock units granted March 31, 2026

Matching RSUs after grant 44,493.720 units Restricted Stock Unit (2018 MSPP Match) holdings after transaction

Other RSUs outstanding 69,271.420 units Restricted Stock Unit (2018 MSPP) underlying shares after transaction

Common stock held 230,585 shares Direct common stock ownership after March 31, 2026

RSU exercise price $0.0000 Exercise price for RSUs under 2018 Management Stock Purchase Plan

Key Terms

Restricted Stock Unit, 2018 Management Stock Purchase Plan, annual cash incentive compensation, fair market value, +1 more

5 terms

Restricted Stock Unit financial

"Represents matching restricted stock units allocated to the Reporting Person with respect to the Reporting Person's deferral..."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

2018 Management Stock Purchase Plan financial

"pursuant to the Company's 2018 Management Stock Purchase Plan."

annual cash incentive compensation financial

"deferral of a portion of their annual base salary and annual cash incentive compensation pursuant to the Company's 2018 Management Stock Purchase Plan."

fair market value financial

"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"

The price a willing buyer and a willing seller would agree on for an asset or security when neither is under pressure and both have access to the same information. Think of it as the market’s neutral estimate of what something is worth, like the price two neighbors would settle on for a car after comparing similar listings. Investors care because fair market value guides buying and selling decisions, tax reporting, portfolio valuation, and how accurately company assets are reflected in financial statements.

lump sum payment financial

"payable solely in cash in one lump sum payment or in five (5) or ten (10) consecutive, substantially equal annual installments"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did ROCK CEO William Bosway report on this Form 4?

William T. Bosway reported receiving 512.210 matching restricted stock units on March 31, 2026 under Gibraltar Industries’ 2018 Management Stock Purchase Plan. The award is compensation-linked, tied to his deferral of annual base salary and cash incentive compensation rather than an open-market stock purchase.

How many Gibraltar Industries (ROCK) restricted stock units does the CEO hold after this filing?

After this filing, William T. Bosway holds 44,493.720 matching restricted stock units from the 2018 Management Stock Purchase Plan, plus 69,271.420 additional RSUs under the same plan. These positions are in addition to his directly held common stock in Gibraltar Industries.

How many Gibraltar Industries (ROCK) common shares does the CEO own directly after the reported transaction?

Following the reported grant, William T. Bosway directly owns 230,585 shares of Gibraltar Industries common stock. This figure reflects his post-transaction holdings and does not include restricted stock units, which are separate compensation-linked instruments under the company’s 2018 Management Stock Purchase Plan.

What is the nature of the 512.210 RSU grant to the Gibraltar Industries (ROCK) CEO?

The 512.210 units are matching restricted stock units allocated for Bosway’s deferral of a portion of his annual base salary and annual cash incentive compensation. They are awarded at a zero exercise price as part of Gibraltar Industries’ 2018 Management Stock Purchase Plan.

How and when are Gibraltar Industries (ROCK) RSUs under the 2018 Management Stock Purchase Plan paid?

Under the plan, restricted stock units are payable solely in cash after the officer’s service ends. Payment occurs in a lump sum or five or ten annual installments, based on the officer’s election, starting six months after termination of service with Gibraltar Industries.

What happens to Gibraltar Industries (ROCK) matching RSUs if the CEO leaves before vesting conditions are met?

Matching restricted stock units are forfeited if the officer’s service ends before the fifth anniversary of the vesting commencement date. Continued service beyond that fifth anniversary is required for payment, which is then based on Gibraltar Industries’ common stock fair market value at termination.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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
Estimated average burden
hours per response:			0.5

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^*

Bosway William T

(Last) (First) (Middle)

3556 LAKE SHORE ROAD

P.O. BOX 2028

(Street)

BUFFALO NEW YORK 14219-0228

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026

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

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

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

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								230,585	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)	03/31/2026		A		512.21(3)		(2)	(2)	Common Stock	512.21	$0	44,493.72	D
Restricted Stock Unit (2018 MSPP)(4)	(5)							(5)	(5)	Common Stock	69,271.42		69,271.42	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 a portion of their annual base salary pursuant to the Company's 2018 Management Stock Purchase Plan.

4. Represents 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.

5. 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.

	/s/ Jeffrey J. Watorek, Attorney-in-Fact for William T. Bosway	04/01/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)