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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
Verition Fund Management
101
Verition Fund Management
Connecticut
$1.31M -$27.3K -437 -2%
Envestnet Asset Management
102
Envestnet Asset Management
Illinois
$1.29M +$46.4K +741 +4%
CIA
103
Cascade Investment Advisors
Oregon
$1.2M +$43.5K +695 +4%
SGI
104
Summit Global Investments
Utah
$1.16M +$83.8K +1,339 +8%
MIM
105
MetLife Investment Management
New Jersey
$1.07M -$58.1K -928 -5%
SOADOR
106
State of Alaska Department of Revenue
Alaska
$1.03M -$70.8K -1,131 -6%
IC
107
IEQ Capital
California
$1.02M -$243K -3,878 -19%
IMRF
108
Illinois Municipal Retirement Fund
Illinois
$1M -$19.6K -313 -2%
HEIP
109
Hudson Edge Investment Partners
New Jersey
$945K +$416K +6,653 +79%
Cerity Partners
110
Cerity Partners
New York
$943K +$2.38K +38 +0.3%
HF
111
HRT Financial
New York
$932K -$2.91M -46,540 -76%
Manulife (Manufacturers Life Insurance)
112
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$906K -$68.3K -1,091 -7%
Janus Henderson Group
113
Janus Henderson Group
United Kingdom
$886K – – –
LSERS
114
Louisiana State Employees Retirement System
Louisiana
$854K -$12.5K -200 -1%
Zurich Cantonal Bank
115
Zurich Cantonal Bank
Switzerland
$816K -$49.5K -791 -6%
Man Group
116
Man Group
United Kingdom
$782K -$5.5M -87,856 -88%
MNBTD
117
Moody National Bank Trust Division
Texas
$746K +$743K +11,875 New
Balyasny Asset Management
118
Balyasny Asset Management
Illinois
$745K +$742K +11,858 New
Millennium Management
119
Millennium Management
New York
$735K -$5.82M -93,006 -89%
DB
120
Danske Bank
Denmark
$699K -$282K -4,506 -29%
SSA
121
Schonfeld Strategic Advisors
New York
$684K +$681K +10,892 New
VA
122
Vident Advisory
Georgia
$679K +$21.1K +337 +3%
Cetera Investment Advisers
123
Cetera Investment Advisers
Illinois
$668K +$295K +4,719 +80%
VOYA Investment Management
124
VOYA Investment Management
Georgia
$667K -$380K -6,076 -36%
HSBC Holdings
125
HSBC Holdings
United Kingdom
$642K -$251K -4,012 -28%
3 4
5
6 7

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.