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Gibraltar Industries
ROCK

228 hedge funds and large institutions have $1.26B invested in Gibraltar Industries in 2026 Q1 according to their latest regulatory filings, with 38 funds opening new positions, 92 increasing their positions, 68 reducing their positions, and 59 closing their positions.

New
Increased
Maintained
Reduced
Closed

35% more repeat investments, than reductions

Existing positions increased: 92 | Existing positions reduced: 68

4.24% more ownership

Funds ownership: 100.81% → 105.04% (+4.2%)

10% less funds holding

Funds holding: 254 → 228 (-26)

15% less capital invested

Capital invested by funds: $1.47B → $1.26B (-$215M)

36% less first-time investments, than exits

New positions opened: 38 | Existing positions closed: 59

Holders
228
Holders Change
-26
Holders Change %
-10.24%
% of All Funds
2.81%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.01%
New
38
Increased
92
Reduced
68
Closed
59
Calls
$28K
Puts
–
Net Calls
+$28K
Net Calls Change
+$2.25M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$35.5M
2
AllianceBernstein
AllianceBernstein
Tennessee
+$23.4M
3
FWSM
First Wilshire Securities Management
California
+$17.9M
4
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings
Hong Kong
+$12.3M
5
SCM
SG Capital Management
Illinois
+$11.3M

Top Sellers

1
Victory Capital Management
Victory Capital Management
Texas
-$32.2M
2
Swedbank
Swedbank
Sweden
-$13.2M
3
Boston Partners
Boston Partners
Massachusetts
-$11.5M
4
Russell Investments Group
Russell Investments Group
United Kingdom
-$7.22M
5
AA
Ancora Advisors
Ohio
-$5.93M
Name Holding Trade Value Shares
Change 		Change in
Stake
State of Wisconsin Investment Board
251
State of Wisconsin Investment Board
Wisconsin
– -$329K -6,655 Closed
Two Sigma Advisers
252
Two Sigma Advisers
New York
– -$311K -6,300 Closed
LPL Financial
253
LPL Financial
California
– -$259K -5,247 Closed
YIH
254
Y-Intercept (HK)
Hong Kong
– -$256K -5,174 Closed
CCIA
255
Campbell & Co Investment Adviser
Maryland
– -$255K -5,157 Closed
Bank of Montreal
256
Bank of Montreal
Ontario, Canada
– -$252K -5,101 Closed
NC
257
nVerses Capital
Florida
– -$240K -4,852 Closed
HWAM
258
Hennion & Walsh Asset Management
New Jersey
– -$226K -4,577 Closed
PWM
259
Perigon Wealth Management
California
– -$226K -4,577 Closed
MSRPS
260
Maryland State Retirement & Pension System
Maryland
– -$213K -4,307 Closed
KeyBank National Association
261
KeyBank National Association
Ohio
– -$212K -4,285 Closed
BEI
262
Benjamin Edwards Inc
Missouri
– -$210K -4,242 Closed
Mackenzie Financial
263
Mackenzie Financial
Ontario, Canada
– -$207K -4,158 Closed
GCP
264
GSA Capital Partners
United Kingdom
– -$204K -4,117 Closed
OAM
265
Oppenheimer Asset Management
New York
– -$202K -4,077 Closed
Canada Pension Plan Investment Board
266
Canada Pension Plan Investment Board
Ontario, Canada
– -$114K -2,300 Closed
A
267
AlphaQuest
New York
– -$91.4K -1,849 Closed
VI
268
Vestcor Inc
New Brunswick, Canada
– -$89K -1,797 Closed
GKIM
269
GW&K Investment Management
Massachusetts
– -$47K -942 Closed
CA
270
Clearstead Advisors
Ohio
– -$41.2K -833 Closed
KAS
271
Kestra Advisory Services
Texas
– -$39.5K -798 Closed
SL
272
Salomon & Ludwin
Virginia
– -$10.5K -207 Closed
Optiver Holding
273
Optiver Holding
Netherlands
– -$3.56K -72 Closed
HNB
274
Huntington National Bank
Ohio
– -$3.51K -71 Closed
CIAM
275
Caitong International Asset Management
Hong Kong
– -$1.63K -33 Closed
8 9 10
11
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ROCK Hedge Fund Activity: Q1 2026 in Review

228 of the 8,125 institutional investors tracked by Wall St. Rank reported a position in Gibraltar Industries (ROCK) for Q1 2026, worth a combined $1.26B — down 15% from $1.47B a quarter earlier.

Sellers outnumbered buyers: 59 funds closed out of ROCK and 38 opened new positions — a net loss of 21 holders — while 68 trimmed existing stakes and 92 added.

The largest buyer was Fidelity Investments, adding an estimated $35.5M. The largest seller was Victory Capital Management, cutting an estimated $32.2M.

  • 228 institutional investors held Gibraltar Industries (ROCK) as of Q1 2026, down from 254 in Q4 2025.
  • Funds reported $1.26B of Gibraltar Industries stock for Q1 2026, down 15% quarter-over-quarter.
  • 38 funds opened new Gibraltar Industries positions in Q1 2026 and 59 closed out, a net change of -21 holders.
  • The largest Gibraltar Industries buyer in Q1 2026 was Fidelity Investments, an estimated $35.5M added.
  • The largest Gibraltar Industries seller in Q1 2026 was Victory Capital Management, an estimated $32.2M sold.

Based on aggregated 13F filings for Q1 2026.