Katherine Bolanowski

CIK: 0001914788

Transaction Breakdown

Open Market Buys (P)2 (9.5%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)15 (71.4%)

Compensation grants

Other (G, F, J, C, D, …)4 (19.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

ROCK

GIBRALTAR INDUSTRIES, INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (21 total)

ROCK
GIBRALTAR INDUSTRIES, INC.
Sep 30, 2026
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
245 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Jun 30, 2026
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
259 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
May 21, 2026
Purchase(P)
Direct
144 shares at avg. $35.66$5K
ROCK
GIBRALTAR INDUSTRIES, INC.
May 21, 2026
Purchase(P)
Direct
1.3K shares at avg. $35.63$45K
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 31, 2026
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
240 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 6, 2026
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
438 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 4, 2026
Tax Payment(F)
Direct
2.6K shares at avg. $43.05$112K
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 3, 2026
Tax Payment(F)
Direct
286 shares at avg. $43.83$13K
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 2, 2026
Award(A)
Direct
3.4K shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 1, 2026
Tax Payment(F)
Direct
739 shares at avg. $45.48$34K
ROCK
GIBRALTAR INDUSTRIES, INC.
Dec 31, 2025
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
172 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Sep 30, 2025
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
183 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Jun 30, 2025
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
172 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 31, 2025
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
177 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 7, 2025
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
638 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 3, 2025
Award(A)
Direct
2.3K shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Mar 1, 2025
Tax Payment(F)
Direct
1.7K shares at avg. $65.71$111K
ROCK
GIBRALTAR INDUSTRIES, INC.
Feb 18, 2025
Award(A)
Direct
932 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Dec 31, 2024
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
136 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Nov 1, 2024
Award(A)
Direct
900 shares-
ROCK
GIBRALTAR INDUSTRIES, INC.
Sep 30, 2024
Award(A)
Restricted Stock Unit (2018 MSPP Match)
Direct
155 shares-

		Type	Shares	Price		Ownership
Sep 30, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	245	-	-	Direct
Jun 30, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	259	-	-	Direct
May 21, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Purchase(P)	144	$35.66	$5,135	Direct
May 21, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Purchase(P)	1,256	$35.63	$44,751	Direct
Mar 31, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	240	-	-	Direct
Mar 6, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	438	-	-	Direct
Mar 4, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Tax Payment(F)	2,601	$43.05	$111,973	Direct
Mar 3, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Tax Payment(F)	286	$43.83	$12,535	Direct
Mar 2, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A)	3,410	-	$0	Direct
Mar 1, 2026	ROCK GIBRALTAR INDUSTRIES, INC.	Tax Payment(F)	739	$45.48	$33,610	Direct
Dec 31, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	172	-	-	Direct
Sep 30, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	183	-	-	Direct
Jun 30, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	172	-	-	Direct
Mar 31, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	177	-	-	Direct
Mar 7, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	638	-	-	Direct
Mar 3, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A)	2,302	-	-	Direct
Mar 1, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Tax Payment(F)	1,694	$65.71	$111,313	Direct
Feb 18, 2025	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A)	932	-	-	Direct
Dec 31, 2024	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	136	-	-	Direct
Nov 1, 2024	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A)	900	-	$0	Direct
Sep 30, 2024	ROCK GIBRALTAR INDUSTRIES, INC.	Award(A) Restricted Stock Unit (2018 MSPP Match)	155	-	-	Direct

1-21 of 21 transactions

About Bolanowski Katherine

Bolanowski Katherine (SEC CIK 0001914788) files insider reports with the SEC as General Counsel, VP, Secretary of GIBRALTAR INDUSTRIES, INC. (ROCK).

Signal8 holds 19 ownership filings by Bolanowski Katherine, all Form 4s, filed between Oct 1, 2024 and Oct 1, 2026. Those filings report 21 transactions, from Sep 30, 2024 to Sep 30, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Bolanowski Katherine's filings is in BUFFALO, NY.

Recent filings by Bolanowski Katherine

Sep 30, 2026: Grant or award of ROCK derivative securities (Form 4, code A).
Jun 30, 2026: Grant or award of ROCK derivative securities (Form 4, code A).
May 21, 2026: Open-market purchases of ROCK shares (2 lines, Form 4, code P).
Mar 31, 2026: Grant or award of ROCK derivative securities (Form 4, code A).
Mar 6, 2026: Grant or award of ROCK derivative securities (Form 4, code A).

Other insiders filing for GIBRALTAR INDUSTRIES, INC. (ROCK)

Shah Manish H, Director
Watorek Jeffrey J., VP and Treasurer
Catlett Janet Anne, VP, CHRO
Lovechio Joseph A, VP and CFO
Bosway William T, President and CEO
Mizell Gwendolyn G, Director

How to read Form 4 transaction codes