XTX Topco’s Gibraltar Industries ROCK Stock Holding History

XTX Topco’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	$596K	Buy	14,951 +8,920	+148%	+$431K	0.01%	1866
2025 Q4	$298K	Buy	+6,031	New	+$346K	0.01%	2074
2024 Q4	–	Sell	-7,636	Closed	-$534K	–	2836
2024 Q3	$534K	Buy	+7,636	New	+$533K	0.04%	766
2023 Q2	–	Sell	-5,959	Closed	-$289K	–	1772
2023 Q1	$289K	Buy	+5,959	New	+$305K	0.06%	681
2021 Q2	–	Sell	-4,112	Closed	-$376K	–	1045
2021 Q1	$376K	Buy	+4,112	New	+$377K	0.18%	189

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

XTX Topco's ROCK Position: Q1 2026 in Review

XTX Topco increased its Gibraltar Industries (ROCK) stake by 148% in Q1 2026, buying an estimated $431K and bringing the position to 14,951 shares worth $596K. The position accounts for 0.01% of the portfolio, ranked #1866.

XTX Topco first reported a position in ROCK in Q1 2021 and has held it in 5 quarters since. 228 funds tracked by Wall St. Rank hold ROCK as of Q1 2026.

XTX Topco held 14,951 shares of Gibraltar Industries worth $596K as of Q1 2026.
XTX Topco bought 8,920 Gibraltar Industries shares in Q1 2026, an estimated $431K.
Gibraltar Industries made up 0.01% of XTX Topco's portfolio in Q1 2026, its #1866 holding.
XTX Topco first reported a position in Gibraltar Industries in Q1 2021 and has held it in 5 quarters since.
228 funds tracked by Wall St. Rank held Gibraltar Industries as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.