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ROCK · Gibraltar Industries, Inc. · Shareholders & Ownership

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Market Cap
$964.57M
Shares
29.71M
Volume · Nov 9 71.78K Avg daily vol (3M) 382.9K

Every disclosed holder of ROCK in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns ROCK

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 30,869,639 103.92%
Insiders (Forms 3, 4, 5) 424,755 1.43%
13D/G-only blocks 934,622 3.15%
Remaining 2,522,602 -8.49%
Registered funds (N-PORT, not summed) 17,273,137 58.15%

Shares outstanding: 29,706,414, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ROCK

# Holder Shares
1
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
4,919,877
1.1
iShares Core S&P Small-Cap ETF
Fund S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
1,787,434
1.2
iShares Russell 2000 ETF
Fund S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
782,577
1.3
iShares Russell 2000 Value ETF
Fund S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
284,621
1.4
iShares S&P Small-Cap 600 Value ETF
Fund S000004316 · Registered fund · Jun 30, 2026
iShares Trust, not summed
255,266
1.5
iShares U.S. Home Construction ETF
Fund S000009415 · Registered fund · Jun 30, 2026
iShares Trust, not summed
141,957
2
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
4,449,287
2.1
Fidelity Low-Priced Stock Fund
Fund S000007152 · Registered fund · Jul 31, 2026
Fidelity Puritan Trust, not summed
1,187,805
2.2
Strategic Advisers Fidelity U.S. Total Stock Fund
Fund S000061481 · Registered fund · Aug 31, 2026
Fidelity Rutland Square Trust II, not summed
708,506
2.3
Fidelity Small Cap Discovery Fund
Fund S000055370 · Registered fund · Jul 31, 2026
Fidelity Concord Street Trust, not summed
336,688
2.4
Fidelity Small Cap Index Fund
Fund S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
330,839
2.5
Fidelity Series Small Cap Discovery Fund
Fund S000055368 · Registered fund · Jul 31, 2026
Fidelity Concord Street Trust, not summed
287,929
3
ALLIANCEBERNSTEIN L.P.
13F CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,232,832
3.1
AB Discovery Value Fund
Fund S000010412 · Registered fund · Jun 30, 2026
AB TRUST, not summed
513,947
3.2
AB Discovery Value Portfolio
Fund S000010436 · Registered fund · Jun 30, 2026
AB VARIABLE PRODUCTS SERIES FUND, INC., not summed
153,461
3.3
AB Small Cap Value Portfolio
Fund S000045542 · Registered fund · Jun 30, 2026
AB CAP FUND, INC., not summed
104,991
3.4
Small Cap Core Portfolio
Fund S000051867 · Registered fund · Jun 30, 2026
Bernstein Fund Inc, not summed
41,241
3.5
Tax-Aware Overlay A Portfolio
Fund S000027648 · Registered fund · Jun 30, 2026
BERNSTEIN SANFORD C FUND INC, not summed
5,166
4
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Sep 30, 2026
1,546,893
4.1
U.S. SMALL CAP VALUE PORTFOLIO
Fund S000000987 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
233,122
4.2
U.S. Targeted Value Portfolio
Fund S000000970 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
225,723
4.3
Dimensional U.S. Targeted Value ETF
Fund S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
156,740
4.4
U.S. MICRO CAP PORTFOLIO
Fund S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
141,196
4.5
U.S. SMALL CAP PORTFOLIO
Fund S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
130,347
5
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,332,679
6
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,290,636
7
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,228,984
7.1
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
272,253
7.2
State Street(R) SPDR(R) S & P 600(TM) Small Cap Value ETF
Fund S000006974 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
151,960
7.3
State Street Institutional Small-Cap Equity Fund
Fund S000001631 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL FUNDS, not summed
39,872
7.4
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
10,500
7.5
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
Fund S000006973 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
6,384
8
BARROW HANLEY MEWHINNEY & STRAUSS LLC
13F CIK 313028 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
984,916
9
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
940,382
10
FRONTIER CAPITAL MANAGEMENT CO LLC
13F CIK 351173 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
830,272
11
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
13F CIK 1705339 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
805,620
11.1
Global X U.S. Infrastructure Development ETF
Fund S000056509 · Registered fund · Aug 31, 2026
GLOBAL X FUNDS, not summed
959,230
11.2
Global X Russell 2000 ETF
Fund S000085029 · Registered fund · Jul 31, 2026
GLOBAL X FUNDS, not summed
14,433
12
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Sep 30, 2026
788,438
13
SEGALL BRYANT & HAMILL, LLC
13F CIK 1006378 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
587,545
13.1
SBH SMALL CAP VALUE FUND
Fund S000065432 · Registered fund · Jun 30, 2026
Segall Bryant & Hamill Trust, not summed
89,982
14
WELLINGTON MANAGEMENT GROUP LLP
13G CIK 902219 · Holding company · Jun 30, 2025
Rule 13d-1(b), qualified institution
529,654
15
Simcoe Capital Management, LLC
13F CIK 1633362 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
494,365
16
Boston Partners
13F CIK 1386060 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
464,628
17
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
445,326
17.1
Schwab U.S. Small-Cap ETF
Fund S000026636 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
141,775
17.2
Schwab Fundamental U.S. Small Company ETF
Fund S000040878 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
130,005
17.3
Schwab Small-Cap Index Fund
Fund S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
73,649
17.4
Schwab Fundamental U.S. Small Company Index Fund
Fund S000016767 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
33,929
17.5
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
21,703
18
T. Rowe Price Investment Management, Inc.
13G CIK 1897612 · Investment adviser · Dec 31, 2023
unconfirmed, last confirmed Dec 31, 2023
404,968
19
ROYCE & ASSOCIATES LP
13F CIK 906304 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
402,365
19.1
Royce Small-Cap Opportunity Fund
Fund S000009512 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
155,888
19.2
Royce Small-Cap Special Equity Fund
Fund S000009513 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
32,500
20
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
357,210
20.1
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
133
21
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
353,253
21.1
Small Cap Index Fund
Fund S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
15,322
21.2
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
6,636
21.3
Small Cap Core Fund
Fund S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
4,468
22
VANGUARD EXTENDED MARKET INDEX FUND
Fund S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
340,149
23
VANGUARD SMALL-CAP INDEX FUND
Fund S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
339,810
24
FIRST WILSHIRE SECURITIES MANAGEMENT INC
13F CIK 732847 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
268,773
25
American Beacon Small Cap Value Fund
Fund S000001818 · Registered fund · Jul 31, 2026
AMERICAN BEACON FUNDS, not summed
255,161
26
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
254,651
27
Bosway William T
Insider CIK 1675953 · Sep 30, 2026
Director, President and CEO, issuer-wide
250,320
28
Balyasny Asset Management L.P.
13F CIK 1218710 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
243,403
29
KENNEDY CAPITAL MANAGEMENT LLC
13F CIK 884589 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
240,064
29.1
Kennedy Capital Small Cap Value Fund
Fund S000076118 · Registered fund · Jun 30, 2026
INVESTMENT MANAGERS SERIES TRUST II, not summed
12,443
30
D. E. Shaw & Co., Inc.
13F CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
224,747
31
VANGUARD SMALL-CAP VALUE INDEX FUND
Fund S000002847 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
215,460
32
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
203,668
33
Invenomic Capital Management LP
13F CIK 1769456 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
203,383
33.1
Invenomic Fund
Fund S000057713 · Registered fund · Jul 31, 2026
NORTHERN LIGHTS FUND TRUST II, not summed
74,922
34
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
196,014
35
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
191,107
36
VANGUARD RUSSELL 2000 INDEX FUND
Fund S000030003 · Registered fund · Aug 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
173,115
37
PALISADE CAPITAL MANAGEMENT, LP
13F CIK 1009006 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
168,431
38
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Sep 30, 2026
166,622
39
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
159,586
39.1
AQR Small Cap Multi-Style Fund
Fund S000040064 · Registered fund · Jun 30, 2026
AQR Funds, not summed
6,854
39.2
AQR Small Cap Momentum Style Fund
Fund S000025644 · Registered fund · Mar 31, 2026
AQR Funds, not summed
4,161
40
VANGUARD EXPLORER VALUE FUND
Fund S000028087 · Registered fund · Aug 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
149,850
41
NEW YORK STATE COMMON RETIREMENT FUND
13F CIK 810265 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
146,525
42
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
144,410
42.1
Invesco S&P SmallCap 600 Revenue ETF
Fund S000064596 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
43,301
42.2
Invesco RAFI US 1500 Small-Mid ETF
Fund S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
38,868
42.3
Invesco S&P SmallCap Industrials ETF
Fund S000028300 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
17,470
42.4
Invesco S&P SmallCap 600 QVM Multi-Factor ETF
Fund S000072320 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
4,862
42.5
Invesco Russell 2000 Dynamic Multifactor ETF
Fund S000064608 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Self-Indexed Fund Trust, not summed
454
43
PRINCIPAL FINANCIAL GROUP INC
13F CIK 1126328 · Insurance company · Sep 30, 2026
141,887
43.1
Principal U.S. Small-Cap ETF
Fund S000055159 · Registered fund · Jun 30, 2026
Principal Exchange-Traded Funds, not summed
45,539
43.2
SmallCap S&P 600 Index Fund
Fund S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
21,853
43.3
SmallCap Value Fund II
Fund S000007169 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
1,990
44
Boston Partners Small Cap Value Fund II (R6)
Fund S000001094 · Registered fund · Aug 31, 2026
RBB Fund, Inc., not summed
134,291
45
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
133,857
46
CenterBook Partners LP
13F CIK 1872738 · Registered investment adviser · Sep 30, 2026
127,363
47
Edgestream Partners, L.P.
13F CIK 1535061 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
125,631
48
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
125,116
48.1
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund S000048296 · Registered fund · Aug 31, 2026
Goldman Sachs ETF Trust, not summed
14,338
48.2
Multi-Manager U.S. Small Cap Equity Fund
Fund S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
7,453
48.3
Goldman Sachs Multi-Manager Global Equity Fund
Fund S000049146 · Registered fund · Jul 31, 2026
Goldman Sachs Trust II, not summed
6,200
48.4
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
204
49
RBF Capital, LLC
13F CIK 1134621 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
123,099
50
CastleKnight Management LP
13F CIK 1835751 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
122,500

62 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 395 holders

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Key facts CIK 912562 CUSIP 374689107 13F (30d) 107 filings 90 filers Visit website Investor relations