Summit Global Investments’s Gibraltar Industries ROCK Stock Holding History

Summit Global Investments’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 Q1	$765K	Buy	19,176 +847	+5%	+$40.9K	0.05%	250
2025 Q4	$906K	Sell	18,329 -135	-0.7%	-$7.74K	0.05%	218
2025 Q3	$1.16M	Buy	18,464 +1,339	+8%	+$83.8K	0.07%	174
2025 Q2	$1.01M	Buy	+17,125	New	+$981K	0.06%	201
2024 Q4	–	Sell	-3,535	Closed	-$247K	–	621
2024 Q3	$247K	Hold	3,535	–	–	0.02%	460
2024 Q2	$242K	Buy	+3,535	New	+$257K	0.02%	448
2021 Q3	–	Sell	-8,400	Closed	-$641K	–	545
2021 Q2	$641K	Sell	8,400 -300	-3%	-$24.8K	0.04%	304
2021 Q1	$796K	Buy	+8,700	New	+$798K	0.05%	230

Other funds holding ROCK

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return

Summit Global Investments's ROCK Position: Q1 2026 in Review

Summit Global Investments increased its Gibraltar Industries (ROCK) stake by 4.6% in Q1 2026, buying an estimated $40.9K and bringing the position to 19,176 shares worth $765K. The position accounts for 0.05% of the portfolio, ranked #250.

Summit Global Investments first reported a position in ROCK in Q1 2021 and has held it in 8 quarters since. The position peaked at $1.16M in Q3 2025. 228 funds tracked by Wall St. Rank hold ROCK as of Q1 2026.

Summit Global Investments held 19,176 shares of Gibraltar Industries worth $765K as of Q1 2026.
Summit Global Investments bought 847 Gibraltar Industries shares in Q1 2026, an estimated $40.9K.
Gibraltar Industries made up 0.05% of Summit Global Investments's portfolio in Q1 2026, its #250 holding.
Summit Global Investments first reported a position in Gibraltar Industries in Q1 2021 and has held it in 8 quarters since.
Summit Global Investments's Gibraltar Industries position peaked at $1.16M in Q3 2025.
228 funds tracked by Wall St. Rank held Gibraltar Industries as of Q1 2026.

Based on Summit Global Investments's 13F filing for Q1 2026, filed 7 May 2026.