Gibraltar Industries
ROCK
245 hedge funds and large institutions have $1.39B invested in Gibraltar Industries in 2026 Q2 according to their latest regulatory filings, with 54 funds opening new positions, 90 increasing their positions, 80 reducing their positions, and 33 closing their positions.
64% more first-time investments, than exits
New positions opened: 54 | Existing positions closed: 33
13% more repeat investments, than reductions
Existing positions increased: 90 | Existing positions reduced: 80
11% more capital invested
Capital invested by funds: $1.26B → $1.39B (+$134M)
7% more funds holding
Funds holding: 229 → 245 (+16)
0.08% less ownership
Funds ownership: 105.12% → 105.04% (-0.08%)
8% less call options, than puts
Call options by funds: $1.1M | Put options by funds: $1.2M
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SCM
Simcoe Capital Management
New York
|
+$19.4M |
| 2 |
SBH
Segall Bryant & Hamill
Chicago,
Illinois
|
+$6.13M |
| 3 |
SCM
SG Capital Management
Chicago,
Illinois
|
+$6.1M |
| 4 |
FCM
Frontier Capital Management
Boston,
Massachusetts
|
+$5.56M |
| 5 |
Balyasny Asset Management
Chicago,
Illinois
|
+$4.96M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
-$18.6M |
| 2 |
FWSM
First Wilshire Securities Management
Pasadena,
California
|
-$9.06M |
| 3 |
Boston Partners
Boston,
Massachusetts
|
-$8.7M |
| 4 |
Dimensional Fund Advisors
Austin,
Texas
|
-$8.11M |
| 5 |
PCM
Palisade Capital Management
Fort Lee,
New Jersey
|
-$7.46M |
ROCK Hedge Fund Activity: Q2 2026 in Review
245 of the 8,305 institutional investors tracked by Wall St. Rank reported a position in Gibraltar Industries (ROCK) for Q2 2026, worth a combined $1.39B — up 11% from $1.26B a quarter earlier.
Buyers outnumbered sellers: 54 funds opened new ROCK positions and 33 closed out — a net gain of 21 holders — while 90 added to existing stakes and 80 trimmed.
The largest buyer was Simcoe Capital Management, opening a new position worth an estimated $19.4M. The largest seller was T. Rowe Price Investment Management, exiting entirely with an estimated $18.6M sold.
- 245 institutional investors held Gibraltar Industries (ROCK) as of Q2 2026, up from 229 in Q1 2026.
- Funds reported $1.39B of Gibraltar Industries stock for Q2 2026, up 11% quarter-over-quarter.
- 54 funds opened new Gibraltar Industries positions in Q2 2026 and 33 closed out, a net change of +21 holders.
- The largest Gibraltar Industries buyer in Q2 2026 was Simcoe Capital Management, an estimated $19.4M added.
- The largest Gibraltar Industries seller in Q2 2026 was T. Rowe Price Investment Management, an estimated $18.6M sold.
Based on aggregated 13F filings for Q2 2026.