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Gibraltar Industries
ROCK

266 hedge funds and large institutions have $1.88B invested in Gibraltar Industries in 2025 Q3 according to their latest regulatory filings, with 38 funds opening new positions, 89 increasing their positions, 107 reducing their positions, and 34 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 1 → 2 (+1)

13% more call options, than puts

Call options by funds: $1.49M | Put options by funds: $1.32M

12% more first-time investments, than exits

New positions opened: 38 | Existing positions closed: 34

7% more capital invested

Capital invested by funds: $1.75B → $1.88B (+$130M)

0.87% more ownership

Funds ownership: 100.5% → 101.37% (+0.87%)

0% more funds holding

Funds holding: 266 → 266 (0)

17% less repeat investments, than reductions

Existing positions increased: 89 | Existing positions reduced: 107

Holders
266
Holders Change
–
Holders Change %
0%
% of All Funds
3.49%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.03%
New
38
Increased
89
Reduced
107
Closed
34
Calls
$1.49M
Puts
$1.32M
Net Calls
+$169K
Net Calls Change
-$409K

Top Buyers

1
AllianceBernstein
AllianceBernstein
Tennessee
+$29.3M
2
Fidelity Investments
Fidelity Investments
Massachusetts
+$26.1M
3
FCM
Frontier Capital Management
Massachusetts
+$23.5M
4
SBH
Segall Bryant & Hamill
Illinois
+$22.7M
5
RS
Robeco Schweiz
Switzerland
+$11.3M

Top Sellers

1
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
-$20.8M
2
Victory Capital Management
Victory Capital Management
Texas
-$13.1M
3
Allspring Global Investments
Allspring Global Investments
North Carolina
-$10.7M
4
Geode Capital Management
Geode Capital Management
Massachusetts
-$7.96M
5
Wellington Management Group
Wellington Management Group
Massachusetts
-$7.05M
Name Holding Trade Value Shares
Change 		Change in
Stake
OAM
76
OP Asset Management
$2.25M -$235K -3,751 -9%
GF
77
Gabelli Funds
New York
$2.24M -$9.38K -150 -0.4%
EEL
78
Expect Equity LLC
Maryland
$2.23M +$209K +3,336 +10%
State of New Jersey Common Pension Fund D
79
State of New Jersey Common Pension Fund D
New Jersey
$2.18M +$2.18M +34,779 New
JF
80
Jump Financial
Illinois
$2.17M +$2.16M +34,577 New
IIM
81
INTECH Investment Management
Florida
$2.15M -$263K -4,203 -11%
T. Rowe Price Associates
82
T. Rowe Price Associates
Maryland
$2.05M +$59.8K +956 +3%
VHAM
83
Van Hulzen Asset Management
California
$1.91M -$61.1K -976 -3%
VRS
84
Virginia Retirement Systems
Virginia
$1.89M -$50K -800 -3%
Prudential Financial
85
Prudential Financial
New Jersey
$1.87M -$88.2K -1,410 -5%
TI
86
Trexquant Investment
Connecticut
$1.76M -$322K -5,151 -16%
Comerica Bank
87
Comerica Bank
Texas
$1.72M +$291K +4,649 +20%
CP
88
Covalent Partners
Massachusetts
$1.7M +$1.69M +27,000 New
ACA
89
Anchor Capital Advisors
Massachusetts
$1.68M +$26.7K +427 +2%
California State Teachers Retirement System (CalSTRS)
90
California State Teachers Retirement System (CalSTRS)
California
$1.65M -$112K -1,798 -6%
Boston Partners
91
Boston Partners
Massachusetts
$1.62M +$1.61M +25,776 New
Canada Life
92
Canada Life
Manitoba, Canada
$1.61M +$48.5K +776 +3%
SCM
93
Shelton Capital Management
Colorado
$1.61M +$4.5K +72 +0.3%
WB
94
WesBanco Bank
West Virginia
$1.53M – – –
Rafferty Asset Management
95
Rafferty Asset Management
New York
$1.47M +$811K +12,966 +125%
Wells Fargo
96
Wells Fargo
California
$1.46M +$231K +3,693 +19%
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
97
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$1.44M +$1.43M +22,900 New
Federated Hermes
98
Federated Hermes
Pennsylvania
$1.35M +$5.51K +88 +0.4%
Thrivent Financial for Lutherans
99
Thrivent Financial for Lutherans
Minnesota
$1.34M -$24.6K -393 -2%
MAM
100
Martingale Asset Management
Massachusetts
$1.33M -$1.11M -17,738 -46%
2 3
4
5 6

ROCK Hedge Fund Activity: Q3 2025 in Review

266 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Gibraltar Industries (ROCK) for Q3 2025, worth a combined $1.88B — up 7.4% from $1.75B a quarter earlier.

Buyers outnumbered sellers: 38 funds opened new ROCK positions and 34 closed out — a net gain of 4 holders — while 89 added to existing stakes and 107 trimmed.

The largest buyer was AllianceBernstein, adding an estimated $29.3M. The largest seller was Arrowstreet Capital, cutting an estimated $20.8M.

  • 266 institutional investors held Gibraltar Industries (ROCK) as of Q3 2025, unchanged from Q2 2025.
  • Funds reported $1.88B of Gibraltar Industries stock for Q3 2025, up 7.4% quarter-over-quarter.
  • 38 funds opened new Gibraltar Industries positions in Q3 2025 and 34 closed out, a net change of +4 holders.
  • The largest Gibraltar Industries buyer in Q3 2025 was AllianceBernstein, an estimated $29.3M added.
  • The largest Gibraltar Industries seller in Q3 2025 was Arrowstreet Capital, an estimated $20.8M sold.

Based on aggregated 13F filings for Q3 2025.