Gibraltar Industries
ROCK · NASDAQ
$38.41+$0.695 (+1.84%)TodayMarket closed ·
Prev close $37.71
Who owns ROCK
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 60.9% of ROCK’s shares.
- BlackRock Institutional Trust Company, N.A.14.7%
- Fidelity Management & Research Company LLC10.6%
- AllianceBernstein L.P.7.5%
- Dimensional Fund Advisors, L.P.5.1%
- Next 6 largest institutions23.0%
- All other shareholders39.1%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 4.35M | 14.67% |
| Fidelity Management & Research Company LLC | 3.14M | 10.57% |
| AllianceBernstein L.P. | 2.23M | 7.53% |
| Dimensional Fund Advisors, L.P. | 1.50M | 5.05% |
| Vanguard Capital Management, LLC | 1.33M | 4.49% |
| Vanguard Portfolio Management, LLC | 1.29M | 4.35% |
| State Street Investment Management (US) | 1.23M | 4.14% |
| Fidelity Institutional Asset Management | 1.17M | 3.93% |
| Barrow Hanley Global Investors | 984.92K | 3.32% |
| Frontier Capital Management Company, LLC | 830.27K | 2.80% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Small-Cap ETF | 1.81M | 6.09% |
| Fidelity Low-Priced Stock Fund | 1.19M | 4.00% |
| Global X US Infrastructure Development ETF | 959.23K | 3.23% |
| Vanguard Total Stock Market Index Fund | 940.38K | 3.17% |
| iShares Russell 2000 ETF | 779.17K | 2.63% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $823.33K (4 trades) of ROCK on the open market, with no sales.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Shah Manish H | Award | 538 | $23.76K |
| Bolanowski Katherine | Award | 245 | — |
| Catlett Janet Anne | Award | 96 | — |
| Watorek Jeffrey J. | Award | 82 | — |
| Lovechio Joseph A | Award | 304 | — |
| Bosway William T | Award | 518 | — |
| Lovechio Joseph A | Tax withholding | 638 | $30.53K |
| Shah Manish H | Award | 483 | $23.73K |
| Bolanowski Katherine | Award | 259 | — |
| Catlett Janet Anne | Award | 101 | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.09M
- Days to cover
- 4.93
- % of shares outstanding
- 7.03%
- Average daily volume
- 423.58K
- Change since last report
- +8.0%
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