Simcoe Capital Management’s Gibraltar Industries ROCK Stock Holding History

Simcoe 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	$22.3M	Buy	+494,365	New	+$19.4M	4.06%	13

Other funds holding ROCK

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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 Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

Simcoe Capital Management opened a new position in Gibraltar Industries (ROCK) in Q2 2026: 494,365 shares worth $22.3M. The stake represents 4.06% of the portfolio and ranks #13 among its holdings.

245 funds tracked by Wall St. Rank hold ROCK as of Q2 2026.

Simcoe Capital Management held 494,365 shares of Gibraltar Industries worth $22.3M as of Q2 2026.
Gibraltar Industries was a new Simcoe Capital Management position in Q2 2026.
Gibraltar Industries made up 4.06% of Simcoe Capital Management's portfolio in Q2 2026, its #13 holding.
245 funds tracked by Wall St. Rank held Gibraltar Industries as of Q2 2026.

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