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Entropy Technologies’s Gibraltar Industries ROCK Stock Holding History

Entropy Technologies’s Portfolio ROCK Stock Details ROCK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$291K Buy
+6,462
New +$253K 0.01% 797
2025
Q4 		– Sell
-3,406
Closed -$214K – 1118
2025
Q3 		$214K Buy
+3,406
New +$213K 0.02% 740
2025
Q1 		– Sell
-3,859
Closed -$227K – 944
2024
Q4 		$227K Buy
+3,859
New +$263K 0.02% 605
2024
Q1 		– Sell
-3,291
Closed -$260K – 851
2023
Q4 		$260K Buy
+3,291
New +$225K 0.05% 472

Other funds holding ROCK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $10.7B AUM 67.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Entropy Technologies's ROCK Position: Q2 2026 in Review

Entropy Technologies opened a new position in Gibraltar Industries (ROCK) in Q2 2026: 6,462 shares worth $291K. The stake represents 0.01% of the portfolio and ranks #797 among its holdings. This is a return to the name: Entropy Technologies previously reported a position in ROCK as recently as Q3 2025.

Entropy Technologies first reported a position in ROCK in Q4 2023 and has held it in 4 quarters since. 245 funds tracked by Wall St. Rank hold ROCK as of Q2 2026.

  • Entropy Technologies held 6,462 shares of Gibraltar Industries worth $291K as of Q2 2026.
  • Gibraltar Industries was a new Entropy Technologies position in Q2 2026.
  • Gibraltar Industries made up 0.01% of Entropy Technologies's portfolio in Q2 2026, its #797 holding.
  • Entropy Technologies first reported a position in Gibraltar Industries in Q4 2023 and has held it in 4 quarters since.
  • 245 funds tracked by Wall St. Rank held Gibraltar Industries as of Q2 2026.

Based on Entropy Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.