GIBRALTAR INDUSTRIES INC (ROCK) Stock Institutional Trading Activity


GIBRALTAR INDUSTRIES INC (ROCK) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, First Eagle U.S. Value, and Hancock Classic Value. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2025Renaissance Technologies LLCSell-65,50039,100$1,933,104
Q3 2025Renaissance Technologies LLCSell-105,365104,600$6,568,880
Q2 2025Renaissance Technologies LLCSell-40,400209,965$12,387,935
Q1 2025Renaissance Technologies LLCSell-10,100250,365$14,686,411
Q4 2024Renaissance Technologies LLCBuy90,000260,465$15,341,388
Q3 2024First Eagle U.S. ValueSell-21,00067,415$4,714,331
Q3 2024Renaissance Technologies LLCBuy19,502170,465$11,920,617
Q2 2024First Eagle U.S. ValueSell-6,00088,415$6,060,848
Q2 2024Renaissance Technologies LLCSell-17,637150,963$10,348,514
Q1 2024Renaissance Technologies LLCSell-21,065168,600$13,577
Q1 2024First Eagle U.S. ValueBuy3,94094,415$7,603,240
Q4 2023Renaissance Technologies LLCBuy13,765189,665$14,980
Q4 2023First Eagle U.S. ValueSell-5,03090,475$7,145,716
Q3 2023Renaissance Technologies LLCSell-33,465175,900$11,875
Q3 2023First Eagle U.S. ValueBuy2,42195,505$6,447,543
Q2 2023Renaissance Technologies LLCSell-37,100209,365$13,173
Q2 2023First Eagle U.S. ValueBuy12,50093,084$5,856,845
Q1 2023Renaissance Technologies LLCSell-30,500246,465$11,954
Q1 2023First Eagle U.S. ValueBuy32,00080,584$3,908,324
Q4 2022Renaissance Technologies LLCSell-1,700276,965$12,707
Q4 2022First Eagle U.S. ValueSell-3,50048,584$2,229,034
Q3 2022First Eagle U.S. ValueSell-30,00052,084$2,132
Q3 2022Renaissance Technologies LLCSell-64,900278,665$11,406
Q2 2022First Eagle U.S. ValueBuy37,18782,084$3,181
Q2 2022Renaissance Technologies LLCBuy74,000343,565$13,313
Q1 2022First Eagle U.S. ValueBuy28,39144,897$1,928
Q1 2022Renaissance Technologies LLCBuy66,700269,565$11,578
Q4 2021First Eagle U.S. ValueBuy8,30016,506$1,101
Q4 2021Renaissance Technologies LLCSell-86,139202,865$13,527
Q3 2021First Eagle U.S. ValueBuy7,8068,206$572

Frequently asked questions about ROCK activity

  • Which institutional owners are buying ROCK?

    Institutional owners buying ROCK include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ROCK activity?

    "Buy" means an investor increased their reported position in ROCK compared to the prior reporting period. This reflects growing exposure to GIBRALTAR INDUSTRIES INC (ROCK) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ROCK increasing?

    Institutional interest in ROCK can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.