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Gibraltar Industries, Inc.

ROCK
Exchange
Nasdaq
Industry
Steel Works, Blast Furnaces & Rolling & Finishing Mills
SEC CIK
0000912562

No open-market purchases or sales by Gibraltar Industries, Inc. insiders were filed in the last 90 days; 245 institutions reported holding it in 13F filings for Q2 2026, worth $1.39B in total; no superinvestor holds it.

Holders of 5% or more of ROCK

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Gibraltar Industries, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of ROCK
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A15.30%4.63M shares–Apr 28, 20251 filingApr 28, 2025SEC
FMR LLC13G/A15.00%4.43M shares+2.50 ppfrom 12.50%Aug 6, 20254 filingsMay 6, 2026SEC
Alliancebernstein L.P.13G/A7.40%2.20M shares+1.60 ppfrom 5.80%Feb 17, 20262 filingsMay 18, 2026SEC
Vanguard Capital Management LLC13G5.24%1.55M sharesNewApr 29, 20261 filingApr 29, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

36 Schedule 13D and 13G filings on Gibraltar Industries, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on ROCK
Filed (ET)FilerFormStakeChangeEvent dateFiling
May 18, 20261:22 PM ETAlliancebernstein L.P.13G/A7.40%2.20M shares+1.60 ppfrom 5.80%Mar 31, 2026SEC
May 6, 202611:18 AM ETFMR LLCand 1 other13G/A15.00%4.43M shares+2.50 ppfrom 12.50%Mar 31, 2026SEC
Apr 29, 20266:43 PM ETVanguard Capital Management LLC13G5.24%1.55M sharesNewMar 31, 2026SEC
Mar 26, 20266:36 PM ETVanguard Group Inc13G/A0.00%0 shares−10.09 ppfrom 10.09%Below 5%Mar 13, 2026SEC
Feb 17, 20264:10 PM ETAlliancebernstein L.P.13G5.80%1.71M sharesNewDec 31, 2025SEC
Feb 5, 20261:23 PM ETFMR LLCand 1 other13G/A12.50%3.70M shares+2.20 ppfrom 10.30%Dec 31, 2025SEC
Sep 8, 202511:46 AM ETFMR LLCand 1 other13G/A10.30%3.05M shares+1.20 ppfrom 9.10%Aug 29, 2025SEC
Aug 12, 202510:34 AM ETWellington Management Group LLPand 2 others13G/A1.80%529.7K shares−5.00 ppfrom 6.80%Below 5%Jun 30, 2025SEC
Aug 6, 202512:01 PM ETFMR LLCand 1 other13G9.10%2.70M sharesNewJun 30, 2025SEC
May 12, 202510:44 AM ETWellington Management Group LLPand 3 others13G/A6.80%2.01M shares+1.70 ppfrom 5.10%Mar 31, 2025SEC
Apr 28, 20259:47 AM ETBlackRock, Inc.13G/A15.30%4.63M shares–Mar 31, 2025SEC
Apr 7, 202511:51 AM ETVanguard Group Inc13G/A10.09%3.00M shares–Mar 31, 2025SEC
Feb 10, 202510:25 AM ETWellington Management Group LLPand 3 others13G5.10%1.54M shares–Dec 31, 2024SEC
Feb 16, 2024T. Rowe Price Investment Management, Inc.13G/AOld format–––SEC
Feb 14, 2024T. Rowe Price Investment Management, Inc.13GOld format–––SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Feb 9, 2024Dimensional Fund Advisors LP13G/AOld format–––SEC
Feb 8, 2024Wellington Management Group LLP13G/AOld format–––SEC
Jan 19, 20242:40 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 14, 2023T. Rowe Price Investment Management, Inc.13GOld format–New–SEC
Feb 14, 2023Price T Rowe Associates Inc13G/AOld format–––SEC
Feb 10, 2023Dimensional Fund Advisors LP13GOld format–––SEC
Feb 9, 2023Vanguard Group Inc13G/AOld format–––SEC
Feb 6, 2023Wellington Management Group LLP13GOld format–New–SEC
Jan 26, 20238:52 AM ETBlackRock Inc.13G/AOld format–––SEC
Jan 20, 20233:00 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 14, 2022Price T Rowe Associates Inc13G/AOld format–––SEC
Feb 10, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 8, 2022Dimensional Fund Advisors LP13G/AOld format–––SEC
Jan 27, 20221:59 PM ETBlackRock Inc.13G/AOld format–––SEC
Jan 25, 20226:45 PM ETBlackRock Inc.13GOld format–––SEC
Feb 16, 2021Price T Rowe Associates Inc13G/AOld format–––SEC
Feb 12, 2021Dimensional Fund Advisors LP13G/AOld format–––SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Feb 4, 2021Franklin Mutual Advisers LLC13G/AOld format–––SEC
Jan 25, 20214:49 PM ETBlackRock Inc.13GOld format–New–SEC

Form 144: proposed insider sales

4 notices from officers, directors and other affiliates planning to sell Gibraltar Industries, Inc. shares, newest first.

Form 144 notices for ROCK
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
May 5, 20251:26 PM ETNish James BDirector1.17K$68.2KMay 5, 2025Fidelity Brokerage Services LLCSEC
May 2, 20254:37 PM ETNish James BDirector1.00K$57.9KMay 2, 2025Fidelity Brokerage Services LLCSEC
May 2, 202512:45 PM ETNish James BDirector1.67K$95.8KMay 2, 2025Fidelity Brokerage Services LLCSEC
May 23, 202310:53 AM ETNish James BDirector4.96K$281.4KMay 23, 2023Fidelity Brokerage Services LLCSEC