Gibraltar Industries

ROCK

Market cap $1.33B

ROCK Hedge Fund Activity: Q1 2026 in Review

228 of the 8,126 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.