ROCK

GIBRALTAR INDUSTRIES, INC.

Steel Works, Blast Furnaces & Rolling & Finishing MillsNasdaqLarge accelerated filer

Total Trades

4

Buys

2

Sells

2

Largest Trade

$100K–$500K

Insiders

2

Institutional Funds

201

Inst. Value

$1M+

Activist Filings

20

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Nish James BDirectorSELL$100K–$500K4K$57.77May 5, 2025
Nish James BDirectorSELL$100K–$500K5K$56.69May 24, 2023
Myers Linda KristineDirectorBUY$50K–$100K2K$38.16May 23, 2022
Myers Linda KristineDirectorBUY$50K–$100K2K$45.70Mar 2, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

FMR LLC

SC 13G/A · Feb 5, 2026

12.5%

3.7M shares

FMR LLC

SC 13G/A · Sep 8, 2025

10.3%

3.1M shares

Wellington Management Group LLP

SC 13G/A · Aug 12, 2025

1.8%

530K shares

FMR LLC

SC 13G · Aug 6, 2025

9.1%

2.7M shares

Wellington Management Group LLP

SC 13G/A · May 12, 2025

6.8%

2.0M shares

BlackRock, Inc.

SC 13G/A · Apr 28, 2025

15.3%

4.6M shares

The Vanguard Group

SC 13G/A · Apr 7, 2025

10.1%

3.0M shares

Wellington Management Group LLP

SC 13G · Feb 10, 2025

5.1%

1.5M shares

1.3%

405K shares

1.3%

405K shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

9.3%

2.8M shares

BlackRock, Inc.

SC 13G/A · Jan 19, 2024

17.8%

5.4M shares

6.4%

2.0M shares

0.7%

220K shares

5.7%

1.8M shares

BlackRock, Inc.

SC 13G/A · Jan 26, 2023

17.7%

5.5M shares

BlackRock, Inc.

SC 13G/A · Jan 20, 2023

17.7%

5.5M shares

9.2%

3.0M shares

BlackRock, Inc.

SC 13G/A · Jan 27, 2022

15.9%

5.2M shares

BlackRock, Inc.

SC 13G · Jan 25, 2022

15.9%

5.2M shares

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