William T. Bosway - 30 Jun 2026 Form 4 Insider Report for GIBRALTAR INDUSTRIES, INC. (ROCK)

Reporting relationship: President and CEO, Director
Issuer ticker: ROCK
Reported as of: 30 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 01 Jul 2026, 13:35:01 UTC
Prior SEC filing: 27 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Jeffrey J. Watorek, Attorney-in-Fact for William T. Bosway

Key filing fact

William T. Bosway filed Form 4 for GIBRALTAR INDUSTRIES, INC. (ROCK) on 01 Jul 2026.

Key facts

This page summarizes William T. Bosway's Form 4 filing for GIBRALTAR INDUSTRIES, INC. (ROCK).
1 reported transaction and 2 derivative rows are listed below.
Accepted by SEC: 01 Jul 2026, 13:35.

Change

Previous filing in this sequence was filed on 27 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001675953 Primary reporting owner

Bosway William T

Relationship: President and CEO, Director
Address: 3556 LAKE SHORE ROAD, P.O. BOX 2028, BUFFALO
Signature: /s/ Jeffrey J. Watorek, Attorney-in-Fact for William T. Bosway
Signature date: 01 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ROCK holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 250,320
Date: 30 Jun 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ROCK transaction Derivative

Restricted Stock Unit (2018 MSPP Match)

Award

Transaction value
Shares: +548
Change %: +1.2%
Price: $0.000000^*
Shares after: 45,041
Date: 30 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 548
Exercise price
Footnotes: F1, F2, F3

ROCK holding Derivative

Restricted Stock Unit (2018 MSPP)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 69,271
Date: 30 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 69,271
Exercise price
Footnotes: F4, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.