PCM
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Polymer Capital Management’s Gibraltar Industries ROCK Stock Holding History

Polymer Capital Management’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 		– Sell
-5,073
Closed -$202K – 926
2026
Q1 		$202K Buy
+5,073
New +$245K 0.02% 741
2025
Q2 		– Sell
-7,249
Closed -$425K – 750
2025
Q1 		$425K Buy
+7,249
New +$451K 0.11% 253

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

Polymer Capital Management's ROCK Position: Q2 2026 in Review

Polymer Capital Management sold out of Gibraltar Industries (ROCK) in Q2 2026, closing a stake of 5,073 shares — an estimated $202K sold.

Polymer Capital Management first reported a position in ROCK in Q1 2025 and held it in 2 quarters. The position peaked at $425K in Q1 2025. 246 funds tracked by Wall St. Rank hold ROCK as of Q2 2026.

  • Polymer Capital Management reported no remaining Gibraltar Industries position as of Q2 2026 after selling out during the quarter.
  • Polymer Capital Management sold 5,073 Gibraltar Industries shares in Q2 2026, an estimated $202K.
  • Polymer Capital Management first reported a position in Gibraltar Industries in Q1 2025 and held it in 2 quarters.
  • Polymer Capital Management's Gibraltar Industries position peaked at $425K in Q1 2025.
  • 246 funds tracked by Wall St. Rank held Gibraltar Industries as of Q2 2026.

Based on Polymer Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.