Gibraltar Industries, Inc. (ROCK)
Nasdaq: ROCK · Steel Works, Blast Furnaces & Rolling & Finishing Mills · Buffalo, NY · filing with the SEC since 1996
Grade5.8
◀ Past 6.2● Present 5.0▶ Future 6.4
Who owns Gibraltar Industries, Inc.
As filed with the SECHolders of 5% or more
4
Blackrock, Inc. holds 15.3% of Common Stock, as its SCHEDULE 13G/A filed Apr 28, 2025 says.
Directors and officers
12
report now, of 26 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Blackrock, Inc.
SCHEDULE 13G/A · filed Apr 28, 2025 · Common Stock
Fmr LLC
SCHEDULE 13G/A · filed May 6, 2026 · COMMON STOCK · 12.5% in Feb 5, 2026
AllianceBernstein L.P.
SCHEDULE 13G/A · filed May 18, 2026 · Common Stock · 5.8% in Feb 17, 2026
Vanguard Capital Management
SCHEDULE 13G · filed Apr 29, 2026 · Common Stock
Wellington Management Group LLP
SCHEDULE 13G/A · filed Aug 12, 2025 · Common Stock · reported falling below 5%, from 6.8% in May 12, 2025
The Vanguard Group
SCHEDULE 13G/A · filed Mar 26, 2026 · Common Stock · reported falling below 5%, from 10.1% in Apr 7, 2025
What ROCK reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Metal Roofing Business
A company bought · acquisition · Jul 2025 · owns, named in the 10-K filed Feb 26, 2026
Lane Supply
A company bought · acquisition · Jan 2025 · owns, named in the 10-K filed Feb 26, 2026
Privately Held Utah-Based Company
A company bought · acquisition · Jun 2023 · owns, named in the 10-K filed Feb 26, 2026
Three Metal Roofing Business
A company bought · acquisition · owns, named in the 10-K filed Feb 26, 2026
40 subsidiaries in 4 countries, from the list filed with the 10-K filed Feb 26, 2026.
Insider tradesForm 4
0sales
8purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$1.6Mbought, in dollars
Open-market trades on Form 4 from Oct 9, 2025 to Oct 9, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Oct 9, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window4 of 26 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Bosway William T | President and CEO | 0 | $0 | 0 | 4 | $1.0M |
| Bolanowski Katherine | General Counsel, VP, Secretary | 0 | $0 | 0 | 2 | $0 |
| Lovechio Joseph A | VP and CFO | 0 | $0 | 0 | 1 | $0 |
| Metcalf James S | director | 0 | $0 | 0 | 1 | $500,000 |