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Equibles

ROCK

Gibraltar Industries, Inc.

Company with tickers: ROCK

CIK
912562
CUSIP
374689107
Shares Outstanding
29,661,919
13F Activity (30d)
86 filings 83 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 197
Total Value: $665,053,932
Total Shares: 16,680,563
Showing 1–100 of 198 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Superinvestors Holding ROCK

All superinvestors →
Mario Gabelli $4,512,388 Ray Dalio $281,003

Holder Concentration

Across 197 13F filers · Δ vs Dec 31, 2025
Top Holder
14.5%
Jun 2023 → Mar 2026 · range 13.6% – 18.9%
+0.9 pts
Top 5
45.0%
Jun 2023 → Mar 2026 · range 41.2% – 49.2%
+3.9 pts
Top 10
63.5%
Jun 2023 → Mar 2026 · range 56.2% – 64.8%
+6.0 pts
HHI
558
Jun 2023 → Mar 2026 · range 479 – 655
Broadly held+79

Quarterly Activity

vs Dec 31, 2025
New
44
Increased
73
Decreased
54
Sold Out
64
Unchanged
26
Holder count: -20
Institutional value: +34.3%
Shares held: +66.6%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Small FIRST WILSHIRE SECURITIES MANAGEMENT INC +370,985 499,923
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. +254,892 742,267
Large BARROW HANLEY MEWHINNEY & STRAUSS LLC +183,651 1,169,975
Mid FRONTIER CAPITAL MANAGEMENT CO LLC +140,604 688,272
Mid SEGALL BRYANT & HAMILL, LLC +77,440 430,995

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large Russell Investments Group, Ltd. −149,422 2,570
Mega D. E. Shaw & Co., Inc. −70,170 249,672
Large Universal- Beteiligungs- und Servicegesellschaft mbH −34,138 6,898
Mega FIRST TRUST ADVISORS LP −33,407 17,525
Mega STATE STREET CORP −17,488 1,345,665

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 2,871,448 $114,484,631
Mega ALLIANCEBERNSTEIN L.P. 2,198,453 $87,652,321
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC 440,483 $17,562,057
Mid SG Capital Management LLC 233,808 $9,321,924
Mega VANGUARD FIDUCIARY TRUST CO 193,746 $7,724,653

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Large Swedbank AB 267,101 $13,205,473
Mid Ancora Advisors LLC 119,858 $5,925,779
Mid GAMCO INVESTORS, INC. ET AL 91,270 $4,512,388
Mid Robeco Schweiz AG 90,000 $4,449,600
Mid Pacer Advisors, Inc. 83,366 $4,121,615
Filter: New 44 Increased 73 Reduced 54 Sold out 64 Unchanged 26
Showing 100 of 198
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega ALLIANCEBERNSTEIN L.P. $87,652,321 13.18% 2,198,453
Mega VANGUARD CAPITAL MANAGEMENT LLC $61,762,856 9.29% 1,549,106
Mega STATE STREET CORP $53,651,663 8.07% 1,345,665
Mega VANGUARD CAPITAL MANAGEMENT LLC $52,721,775 7.93% 1,322,342
Large BARROW HANLEY MEWHINNEY & STRAUSS LLC $46,646,902 7.01% 1,169,975
Mega GEODE CAPITAL MANAGEMENT, LLC $31,004,068 4.66% 777,629
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $29,594,185 4.45% 742,267
Mid FRONTIER CAPITAL MANAGEMENT CO LLC $27,441,404 4.13% 688,272
Small FIRST WILSHIRE SECURITIES MANAGEMENT INC Broker-Dealer $19,931,930 3.00% 499,923
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $17,562,057 2.64% 440,483
Mid SEGALL BRYANT & HAMILL, LLC $17,183,770 2.58% 430,995
Mid PALISADE CAPITAL MANAGEMENT, LP $14,308,346 2.15% 358,875
Mega NORTHERN TRUST CORP Bank $13,312,431 2.00% 333,896
Mega D. E. Shaw & Co., Inc. $9,954,422 1.50% 249,672
Mid KENNEDY CAPITAL MANAGEMENT LLC $9,851,757 1.48% 247,097
Mid SG Capital Management LLC $9,321,924 1.40% 233,808
Mega VANGUARD FIDUCIARY TRUST CO Bank $7,724,653 1.16% 193,746
Mega PRINCIPAL FINANCIAL GROUP INC $7,416,297 1.12% 186,012
Mid Invenomic Capital Management LP $7,299,080 1.10% 183,072
Mid CastleKnight Management LP $6,000,435 0.90% 150,500
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $5,750,250 0.86% 144,225
Mid RBF Capital, LLC $4,907,957 0.74% 123,099
Mid SYSTEMATIC FINANCIAL MANAGEMENT LP $4,723,318 0.71% 118,468
Mega CITADEL ADVISORS LLC $4,722,561 0.71% 118,449
Mega NORDEA INVESTMENT MANAGEMENT AB $4,683,488 0.70% 117,469
Large Balyasny Asset Management L.P. $4,655,859 0.70% 116,776
Large Public Sector Pension Investment Board Pension $4,215,654 0.63% 105,735
Small Congruence Capital, LLC $4,201,141 0.63% 105,371
Mega PRIMECAP MANAGEMENT CO/CA/ $3,811,572 0.57% 95,600
Mega RHUMBLINE ADVISERS $3,555,008 0.53% 89,165
Mega Nuveen, LLC $2,901,777 0.44% 72,781
Large BESSEMER GROUP INC $2,553,593 0.38% 64,048
Mega Legal & General Group Plc $2,548,250 0.38% 63,914
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $2,544,380 0.38% 63,817
Small Expect Equity LLC $2,530,429 0.38% 63,467
Mid Edgestream Partners, L.P. $2,432,827 0.37% 61,019
Mega Swiss National Bank Bank $2,320,434 0.35% 58,200
Mega AMERICAN CENTURY COMPANIES INC $2,309,230 0.35% 57,919
Small Teton Advisors, LLC $2,073,240 0.31% 52,000
Mid South Dakota Investment Council $2,064,867 0.31% 51,790
Large Assenagon Asset Management S.A. $1,979,904 0.30% 49,659
Mega BARCLAYS PLC $1,749,095 0.26% 43,870
Small Kennondale Capital Management LLC $1,668,639 0.25% 41,852
Large Quantinno Capital Management LP $1,542,650 0.23% 38,692
Small Advisors Preferred, LLC $1,519,445 0.23% 38,110
Large SEI INVESTMENTS CO $1,465,221 0.22% 36,750
Mid WEDGE CAPITAL MANAGEMENT L L P/NC $1,429,817 0.21% 35,862
Mid Brooklyn Investment Group $1,413,192 0.21% 35,445
Mega CITIGROUP INC $1,379,102 0.21% 34,590
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM Pension $1,376,551 0.21% 34,526
Large GABELLI FUNDS LLC $1,358,769 0.20% 34,080
Mid WESBANCO BANK INC Bank $1,352,709 0.20% 33,928
Large Corient Private Wealth LLC $1,234,773 0.19% 30,970
Mid CAXTON ASSOCIATES LLP $1,225,085 0.18% 30,727
Large CANADA LIFE ASSURANCE Co Insurance $1,215,676 0.18% 30,491
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $1,202,120 0.18% 30,151
Small BFSG, LLC $1,187,009 0.18% 29,772
Large Federation des caisses Desjardins du Quebec $1,181,387 0.18% 29,631
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $1,106,113 0.17% 27,743
Large FIFTH THIRD BANCORP Bank $1,101,010 0.17% 27,615
Mega DEUTSCHE BANK AG\ Bank $1,087,533 0.16% 27,277
Mid SHELTON CAPITAL MANAGEMENT $1,045,471 0.16% 26,222
Mega VANGUARD ASSET MANAGEMENT, Ltd $965,810 0.15% 24,224
Large Freestone Grove Partners LP $960,548 0.14% 24,092
Mid Van Hulzen Asset Management, LLC $948,587 0.14% 23,792
Large Rafferty Asset Management, LLC $918,564 0.14% 23,039
Small Cascade Investment Advisors, Inc. $878,934 0.13% 22,045
Small HUDSON EDGE INVESTMENT PARTNERS INC. $864,820 0.13% 21,691
Mega Vanguard Global Advisers, LLC $856,606 0.13% 21,485
Small Aviance Capital Partners, LLC $828,737 0.12% 20,786
Large CAPITAL FUND MANAGEMENT S.A. $819,846 0.12% 20,563
Large Pathstone Holdings, LLC $809,559 0.12% 20,305
Small Summit Global Investments $764,547 0.11% 19,176
Mid Atom Investors LP $752,546 0.11% 18,875
Mega FIRST TRUST ADVISORS LP $698,721 0.11% 17,525
Large MetLife Investment Management, LLC $674,042 0.10% 16,906
Mid State of Alaska, Department of Revenue $653,548 0.10% 16,392
Large Creative Planning $651,715 0.10% 16,346
Mid Illinois Municipal Retirement Fund Pension $649,322 0.10% 16,286
Large Zurcher Kantonalbank (Zurich Cantonalbank) Bank $638,876 0.10% 16,024
Mega BNP PARIBAS ARBITRAGE, SA $627,912 0.09% 15,749
Large RENAISSANCE TECHNOLOGIES LLC $617,985 0.09% 15,500
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $616,868 0.09% 15,472
Small FOX RUN MANAGEMENT, L.L.C. $613,360 0.09% 15,384
Mid XTX Topco Ltd $596,096 0.09% 14,951
Small MOODY NATIONAL BANK TRUST DIVISION Bank $593,265 0.09% 14,880
Large Jefferies Financial Group Inc. $550,206 0.08% 13,800
Large Vident Advisory, LLC $524,648 0.08% 13,159
Mid Louisiana State Employees Retirement System Pension $522,297 0.08% 13,100
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $519,705 0.08% 13,035
Mid Inspire Investing, LLC $516,794 0.08% 12,962
Large LAZARD ASSET MANAGEMENT LLC $489,603 0.07% 12,280
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $478,679 0.07% 12,006
Small TWO SIGMA SECURITIES, LLC Broker-Dealer $468,711 0.07% 11,756
Mid SummitTX Capital, L.P. $431,233 0.06% 10,816
Large MARSHALL WACE, LLP $418,276 0.06% 10,491
Small Central Pacific Bank - Trust Division Bank $408,149 0.06% 10,237
Mid Aquatic Capital Management LLC $401,291 0.06% 10,065
Small INCEPTIONR LLC $353,646 0.05% 8,870
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Pension $349,899 0.05% 8,776

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