Gibraltar Industries ROCK Institutional Ownership

NASDAQ ROCK

$39.60 -0.41 (-1.02%)

At close: Sep 30, 2026 · 4:00 PM EDT

Institutions by Trading Activity

246 Institutions

Increased 144 58.5%

Unchanged 21 8.5%

Reduced 81 32.9%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

106.14%

▲+3.73 pp QoQ

Shares Held by Institutions

31.60Mn

of 29.77Mn outstanding

▲+6.90% QoQ

Shares Outstanding

29.77Mn

-1.83Mn held outside 13F filers

Institutional Investors

246

filed 13F for Jun 2026

▲+20 vs prior quarter

Net Shares Added (QoQ)

+2.04Mn

accumulated since last quarter

Value of Holdings

$1.25Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Gibraltar Industries, Inc. (NASDAQ:ROCK) showed up in the 13F filings of 246 institutional investors as of June 2026.

Collectively, these holders controlled 106.1% of Gibraltar Industries's outstanding shares in June 2026, up from 102.4% in March 2026.
They increased total shares held in ROCK by 6.9% quarter over quarter, and investors in Gibraltar Industries decreased 7.17% from a year ago.
During the quarter, 144 of these 246 funds increased positions in ROCK, 81 reduced exposure, and 21 held steady.
In total, institutional investors held 31.6Mn shares in Gibraltar Industries as of June 2026, up by 2.04Mn shares quarter on quarter, and up 2.47Mn shares year over year.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Gibraltar Industries with 4.92Mn shares, accounting for 16.53% of total shares outstanding.
The biggest buyers of Gibraltar Industries for the quarter ending June 2026 included SEGALL BRYANT & HAMILL, LLC (587.54K), Simcoe Capital Management, LLC (494.36K), Sixth Street Partners Management Company, L.P. (445.33K), SG Capital Management LLC (155.6K), FRONTIER CAPITAL MANAGEMENT CO LLC (142.0K).
Leading sellers of Gibraltar Industries shares for the quarter ending June 2026 were FIRST WILSHIRE SECURITIES MANAGEMENT INC (231.15K), Boston Partners (222.0K), DIMENSIONAL FUND ADVISORS LP (206.97K), PALISADE CAPITAL MANAGEMENT, LP (190.44K), BARROW HANLEY MEWHINNEY & STRAUSS LLC (185.06K).
Gibraltar Industries's 10 largest shareholders as of June 2026 include BlackRock, Inc. (4.92Mn), FMR LLC (4.45Mn), ALLIANCEBERNSTEIN L.P. (2.23Mn), DIMENSIONAL FUND ADVISORS LP (1.5Mn), VANGUARD CAPITAL MANAGEMENT LLC (1.33Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.29Mn), State Street Corp (1.23Mn), BARROW HANLEY MEWHINNEY & STRAUSS LLC (984.92K), FRONTIER CAPITAL MANAGEMENT CO LLC (830.27K), GEODE CAPITAL MANAGEMENT, LLC (822.87K) per Business Quant data.

Form 13F Holdings

246 Institutional Holders

Report period 30 Jun, 2026

Total shares held 31.60Mn

Of outstanding 106.14%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	4,919,877	16.53%	▼129,110	-2.56%	$221.89Mn
2	FMR LLC	0000315066	4,449,287	14.95%	▲17,228	+0.39%	$200.66Mn
3	ALLIANCEBERNSTEIN L.P.	0001109448	2,232,832	7.50%	▲34,379	+1.56%	$89.02Mn
4	DIMENSIONAL FUND ADVISORS LP	0000354204	1,499,025	5.04%	▼206,972	-12.13%	$67.61Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,332,679	4.48%	▲10,337	+0.78%	$60.10Mn
6	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,290,636	4.34%	▼33,095	-2.50%	$58.21Mn
7	State Street Corp	0000093751	1,228,984	4.13%	▼116,681	-8.67%	$55.41Mn
8	BARROW HANLEY MEWHINNEY & STRAUSS LLC	0000313028	984,916	3.31%	▼185,059	-15.82%	$44.42Mn
9	FRONTIER CAPITAL MANAGEMENT CO LLC	0000351173	830,272	2.79%	▲142,000	+20.63%	$37.45Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	822,869	2.76%	▲45,240	+5.82%	$37.12Mn
11	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0001705339	805,620	2.71%	▲63,353	+8.54%	$36.33Mn
12	SEGALL BRYANT & HAMILL, LLC	0001006378	587,545	1.97%	▲587,545	0.00%	$26.50Mn
13	Simcoe Capital Management, LLC	0001633362	494,365	1.66%	▲494,365	0.00%	$22.30Mn
14	Boston Partners	0001386060	464,628	1.56%	▼221,997	-32.33%	$20.68Mn
15	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	445,326	1.50%	▲4,843	+1.10%	$20.08Mn
15	Sixth Street Partners Management Company, L.P.	0001812095	445,326	1.50%	▲445,326	0.00%	$20.08Mn
16	ROYCE & ASSOCIATES LP	0000906304	402,365	1.35%	▲113,824	+39.45%	$18.15Mn
17	SG Capital Management LLC	0001510099	389,410	1.31%	▲155,602	+66.55%	$17.56Mn
18	Morgan Stanley	0000895421	357,210	1.20%	▼5,074	-1.40%	$16.11Mn
19	Northern Trust Corp	0000073124	353,253	1.19%	▲19,357	+5.80%	$15.93Mn

Showing 1 to 20 of 246 holders