DaveManuel.com · Institutional Ownership · Who Owns It
GIBRALTAR INDS INC (ROCK)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
246
Reporting holders
$1.4B
Reported value
105.0%
Of shares outstanding
0.1%
Calls
0.1%
Puts
+16
Holder change
Institutions report 31,173,377 shares against 29,683,889 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $221.9M | 4,919,877 | 0.00% | 8q | -2.6%-$5.8M |
| FMR LLC | $200.7M | 4,449,287 | 0.01% | 31q | HELD |
| ALLIANCEBERNSTEIN L.P. | $89.0M | 2,232,832 | 0.03% | 31q | +1.6%+$1.4M |
| DIMENSIONAL FUND ADVISORS LP | $67.6M | 1,499,025 | 0.01% | 31q | -12.1%-$9.3M |
| VANGUARD CAPITAL MANAGEMENT LLC | $60.1M | 1,332,679 | 0.00% | 2q | +0.8%+$466.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $58.2M | 1,290,636 | 0.00% | 2q | -2.5%-$1.5M |
| STATE STREET CORP | $55.4M | 1,228,984 | 0.00% | 31q | -8.7%-$5.3M |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | $44.4M | 984,916 | 0.13% | 31q | -15.8%-$8.3M |
| FRONTIER CAPITAL MANAGEMENT CO LLC | $37.4M | 830,272 | 0.35% | 4q | +20.6%+$6.4M |
| GEODE CAPITAL MANAGEMENT, LLC | $37.1M | 822,869 | 0.00% | 31q | +5.8%+$2.0M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $36.3M | 805,620 | 0.04% | 9q | +8.5%+$2.9M |
| SEGALL BRYANT & HAMILL, LLC | $26.5M | 587,545 | 0.31% | 4q | +36.3%+$7.1M |
| Simcoe Capital Management, LLC | $22.3M | 494,365 | 4.06% | new | NEW |
| Boston Partners | $20.7M | 464,628 | 0.02% | 4q | -32.3%-$9.9M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $20.1M | 445,326 | 0.00% | 31q | +1.1%+$218.4K |
| ROYCE & ASSOCIATES LP | $18.1M | 402,365 | 0.15% | 31q | +39.4%+$5.1M |
| SG Capital Management LLC | $17.6M | 389,410 | 1.45% | 2q | +66.6%+$7.0M |
| MORGAN STANLEY | $16.1M | 357,210 | 0.00% | 35q | -1.4%-$228.8K |
| NORTHERN TRUST CORP | $15.9M | 353,253 | 0.00% | 31q | +5.8%+$873.0K |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | $12.1M | 268,773 | 2.50% | 4q | -46.2%-$10.4M |
| UBS Group AG | $11.5M | 254,651 | 0.00% | 31q | +29.0%+$2.6M |
| Balyasny Asset Management L.P. | $11.0M | 243,403 | 0.01% | 4q | +108.4%+$5.7M |
| KENNEDY CAPITAL MANAGEMENT LLC | $10.8M | 240,064 | 0.19% | 28q | -2.8%-$317.2K |
| D. E. Shaw & Co., Inc. | $10.1M | 224,747 | 0.00% | 31q | -10.0%-$1.1M |
| Invenomic Capital Management LP | $9.2M | 203,383 | 0.55% | 2q | +11.1%+$916.0K |
| CITADEL ADVISORS LLC | $9.1M incl. $482.6K options PUT | 191,107 | 0.00% | 28q | +61.3%+$3.5M |
| VANGUARD FIDUCIARY TRUST CO | $8.8M | 196,014 | 0.00% | 2q | +1.2%+$102.3K |
| PRINCIPAL FINANCIAL GROUP INC | $8.5M | 189,416 | 0.00% | 31q | +1.8%+$153.5K |
| Bank of New York Mellon Corp | $7.7M | 169,626 | 0.00% | 31q | +3.2%+$240.1K |
| PALISADE CAPITAL MANAGEMENT, LP | $7.6M | 168,431 | 0.33% | 25q | -53.1%-$8.6M |
| AQR CAPITAL MANAGEMENT LLC | $7.2M | 159,586 | 0.00% | 31q | +66.2%+$2.9M |
| NEW YORK STATE COMMON RETIREMENT FUND | $6.6M | 146,525 | 0.01% | 31q | +1.6%+$103.7K |
| Invesco Ltd. | $6.5M | 144,410 | 0.00% | 31q | -8.8%-$627.7K |
| BANK OF AMERICA CORP /DE/ | $6.0M | 133,857 | 0.00% | 31q | -3.9%-$244.3K |
| Edgestream Partners, L.P. | $5.7M | 125,631 | 0.17% | 3q | +105.9%+$2.9M |
| GOLDMAN SACHS GROUP INC | $5.6M | 125,116 | 0.00% | 31q | -35.7%-$3.1M |
| RBF Capital, LLC | $5.6M | 123,099 | 0.23% | 31q | HELD |
| CastleKnight Management LP | $5.5M | 122,500 | 0.07% | 2q | -18.6%-$1.3M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5.0M incl. $1.1M options CALL+PUT | 85,913 | 0.00% | 31q | +455.3%+$4.1M |
| Nuveen, LLC | $5.0M | 110,246 | 0.00% | 6q | +51.5%+$1.7M |
| SYSTEMATIC FINANCIAL MANAGEMENT LP | $4.7M | 104,769 | 0.09% | 31q | -11.6%-$617.8K |
| Public Sector Pension Investment Board | $4.6M | 101,911 | 0.01% | 31q | -3.6%-$172.5K |
| GAMCO INVESTORS, INC. ET AL | $4.4M | 96,625 | 0.04% | 25q | -8.7%-$413.6K |
| PRIMECAP MANAGEMENT CO/CA/ | $4.3M | 95,600 | 0.00% | 31q | HELD |
| MONIMUS CAPITAL MANAGEMENT, LP | $4.1M | 91,939 | 0.96% | new | NEW |
| AMERIPRISE FINANCIAL INC | $3.9M | 87,546 | 0.00% | 31q | +7.7%+$281.2K |
| Man Group plc | $3.8M | 83,282 | 0.01% | new | NEW |
| Squarepoint Ops LLC | $3.7M | 83,148 | 0.00% | new | NEW |
| RHUMBLINE ADVISERS | $3.6M | 79,919 | 0.00% | 31q | -10.4%-$417.0K |
| PRUDENTIAL FINANCIAL INC | $3.4M | 75,395 | 0.00% | 31q | +106.4%+$1.8M |
| Expect Equity LLC | $3.1M | 68,267 | 1.98% | 7q | +7.6%+$216.5K |
| RENAISSANCE TECHNOLOGIES LLC | $3.0M | 66,668 | 0.00% | 31q | +330.1%+$2.3M |
| Legal & General Group Plc | $2.9M | 64,755 | 0.00% | 31q | +1.3%+$37.9K |
| VICTORY CAPITAL MANAGEMENT INC | $2.9M | 64,336 | 0.00% | 31q | HELD |
| BESSEMER GROUP INC | $2.9M | 63,737 | 0.00% | 13q | HELD |
| PICTON MAHONEY ASSET MANAGEMENT | $2.8M | 62,487 | 0.02% | 8q | +367470.6%+$2.8M |
| Swiss National Bank | $2.7M | 59,600 | 0.00% | 31q | +2.4%+$63.1K |
| LAZARD ASSET MANAGEMENT LLC | $2.7M | 59,550 | 0.00% | 2q | +384.9%+$2.1M |
| AMERICAN CENTURY COMPANIES INC | $2.6M | 57,243 | 0.00% | 15q | -1.2%-$30.5K |
| MILLENNIUM MANAGEMENT LLC | $2.6M | 56,573 | 0.00% | new | NEW |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $2.5M | 56,083 | 0.00% | 31q | -12.1%-$348.8K |
| WESBANCO BANK INC | $2.5M | 55,328 | 0.06% | 10q | +63.1%+$965.1K |
| Teton Advisors, LLC | $2.3M | 52,000 | 1.36% | 4q | HELD |
| South Dakota Investment Council | $2.3M | 51,090 | 0.04% | 25q | -1.4%-$31.6K |
| PRICE T ROWE ASSOCIATES INC /MD/ | $2.3M | 50,504 | 0.00% | 31q | +18.7%+$359.3K |
| Connor, Clark & Lunn Investment Management Ltd. | $2.2M | 49,795 | 0.00% | 6q | -24.7%-$735.6K |
| SG Americas Securities, LLC | $2.1M | 46,345 | 0.00% | 3q | +560.7%+$1.8M |
| MARSHALL WACE, LLP | $2.0M | 43,345 | 0.00% | 2q | +313.2%+$1.5M |
| CITIGROUP INC | $1.8M | 40,571 | 0.00% | 31q | +17.3%+$269.7K |
| WEDGE CAPITAL MANAGEMENT L L P/NC | $1.8M | 39,125 | 0.03% | 7q | +9.1%+$147.2K |
| Atom Investors LP | $1.7M | 37,434 | 0.15% | 2q | +98.3%+$837.0K |
| CAPITAL FUND MANAGEMENT S.A. | $1.7M | 36,794 | 0.01% | 3q | +78.9%+$732.0K |
| BFSG, LLC | $1.6M | 36,266 | 0.14% | 10q | +21.8%+$292.9K |
| Creative Planning | $1.6M | 36,095 | 0.00% | 4q | +120.8%+$890.7K |
| FIFTH THIRD BANCORP | $1.6M | 34,578 | 0.00% | 26q | +25.2%+$314.0K |
| GABELLI FUNDS LLC | $1.5M | 34,105 | 0.01% | 31q | HELD |
| SEI INVESTMENTS CO | $1.5M | 34,057 | 0.00% | 24q | -7.3%-$121.5K |
| DEUTSCHE BANK AG\ | $1.5M | 33,679 | 0.00% | 34q | +23.5%+$288.7K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $1.5M | 33,404 | 0.00% | 31q | +20.4%+$255.3K |
| Skylands Capital, LLC | $1.5M | 33,350 | 0.18% | new | NEW |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM | $1.5M | 32,625 | 0.00% | 31q | -5.5%-$85.7K |
| Assenagon Asset Management S.A. | $1.5M | 32,394 | 0.00% | 24q | -34.8%-$778.7K |
| HUDSON EDGE INVESTMENT PARTNERS INC. | $1.4M | 32,141 | 0.20% | 5q | +48.2%+$471.3K |
| VANGUARD ASSET MANAGEMENT, Ltd | $1.4M | 32,111 | 0.00% | 2q | +32.6%+$355.7K |
| CAXTON ASSOCIATES LLP | $1.4M | 31,979 | 0.03% | 2q | +4.1%+$56.5K |
| BARCLAYS PLC | $1.4M | 31,731 | 0.00% | 31q | -27.7%-$547.5K |
| Federation des caisses Desjardins du Quebec | $1.3M | 29,789 | 0.00% | 11q | +0.5%+$7.1K |
| CANADA LIFE ASSURANCE Co | $1.3M | 28,942 | 0.00% | 27q | -5.1%-$69.8K |
| Rafferty Asset Management, LLC | $1.3M | 28,067 | 0.00% | 6q | +21.8%+$226.8K |
| WELLS FARGO & COMPANY/MN | $1.2M | 26,182 | 0.00% | 31q | +126.3%+$659.1K |
| JANE STREET GROUP, LLC | $1.1M incl. $554.7K options CALL+PUT | 12,729 | 0.00% | new | NEW |
| FRANKLIN RESOURCES INC | $1.1M | 23,975 | 0.00% | 10q | -32.5%-$519.8K |
| Kennondale Capital Management LLC | $1.1M | 23,544 | 0.71% | 3q | -43.7%-$825.7K |
| FIRST TRUST ADVISORS LP | $1.1M | 23,397 | 0.00% | 31q | +33.5%+$264.8K |
| Corient Private Wealth LP | $1.0M | 23,242 | 0.00% | 14q | -25.0%-$348.5K |
| Quantbot Technologies LP | $1.0M | 23,051 | 0.04% | 5q | +1066.5%+$950.5K |
| MOODY NATIONAL BANK TRUST DIVISION | $1.0M | 22,265 | 0.08% | 4q | +49.6%+$333.1K |
| JPMORGAN CHASE & CO | $1.0M | 21,039 | 0.00% | 31q | -35.7%-$555.7K |
| Quantinno Capital Management LP | $996.3K | 22,090 | 0.00% | 6q | -42.9%-$748.8K |
| SHELTON CAPITAL MANAGEMENT | $967.6K | 21,455 | 0.02% | 14q | -18.2%-$215.0K |
Showing the largest 100 of 246 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-10-15 | 2026-10-15 | Material agreement entered | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-26 | Bosway William T | President and CEO | Bought | 19,735 | $738.8K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 51 | $15.2M | 384,942 | 9 | 20 | 10 | 0.0% |
| Q2 2026 | 246 | $1.4B | 31,173,377 | 51 | 87 | 78 | 0.2% |
| Q1 2026 | 230 | $1.3B | 31,060,463 | 33 | 87 | 67 | 0.0% |
| Q4 2025 | 255 | $1.5B | 30,327,128 | 30 | 76 | 109 | 0.1% |
| Q3 2025 | 267 | $1.9B | 30,074,074 | 40 | 84 | 99 | 0.1% |
| Q2 2025 | 266 | $1.8B | 29,643,374 | 35 | 79 | 125 | 0.0% |
| Q1 2025 | 272 | $1.7B | 29,580,706 | 34 | 110 | 84 | 0.5% |
| Q4 2024 | 285 | $1.8B | 29,850,214 | 29 | 93 | 104 | 0.3% |
| Q3 2024 | 291 | $2.1B | 30,225,385 | 29 | 88 | 119 | 0.2% |
| Q2 2024 | 292 | $2.1B | 30,230,436 | 36 | 105 | 94 | 0.2% |
| Q1 2024 | 289 | $2.5B | 31,558,389 | 40 | 72 | 115 | 0.1% |
| Q4 2023 | 274 | $2.4B | 30,966,703 | 34 | 81 | 98 | 0.1% |
| Q3 2023 | 261 | $2.0B | 29,800,737 | 44 | 70 | 97 | 0.2% |
| Q2 2023 | 233 | $1.9B | 29,500,504 | 41 | 69 | 80 | 0.3% |
| Q1 2023 | 207 | $1.5B | 30,262,702 | 27 | 63 | 72 | 0.3% |
| Q4 2022 | 201 | $1.4B | 30,699,924 | 30 | 55 | 76 | 0.2% |
| Q3 2022 | 182 | $1.4B | 33,940,296 | 11 | 66 | 74 | 0.3% |
| Q2 2022 | 189 | $1.3B | 33,498,925 | 20 | 72 | 65 | 0.3% |
| Q1 2022 | 200 | $2.4B | 56,160,192 | 27 | 86 | 58 | 0.2% |
| Q4 2021 | 199 | $3.1B | 45,740,403 | 22 | 66 | 72 | 0.2% |
| Q3 2021 | 191 | $2.9B | 41,838,338 | 8 | 57 | 78 | 0.2% |
| Q2 2021 | 216 | $3.3B | 43,581,404 | 27 | 70 | 77 | 0.3% |
| Q1 2021 | 230 | $3.8B | 41,417,705 | 36 | 45 | 113 | 0.3% |
| Q4 2020 | 230 | $3.1B | 42,659,633 | 27 | 59 | 95 | 0.2% |
| Q3 2020 | 217 | $2.7B | 41,559,707 | 34 | 50 | 91 | 0.1% |
| Q2 2020 | 203 | $2.1B | 43,163,035 | 25 | 77 | 69 | 0.1% |
| Q1 2020 | 211 | $2.4B | 55,962,155 | 38 | 83 | 61 | 0.1% |
| Q4 2019 | 211 | $2.2B | 43,889,027 | 33 | 71 | 65 | 0.4% |
| Q3 2019 | 194 | $2.0B | 43,587,170 | 52 | 59 | 49 | 0.2% |
| Q2 2019 | 152 | $1.8B | 43,762,368 | 16 | 48 | 43 | 0.1% |
| Q1 2019 | 157 | $1.8B | 44,162,504 | 18 | 42 | 54 | 0.1% |
| Q4 2018 | 146 | $1.6B | 46,302,309 | 3 | 1 | 2 | 0.1% |