Marshall Wace’s Rubrik RBRK Stock Holding History

Marshall Wace’s Portfolio RBRK Stock Details RBRK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$3.37M	Sell	42,031 -321,000	-88%	-$20.2M	﹤0.01%	1572
2026 Q1	$17.8M	Sell	363,031 -80,673	-18%	-$4.63M	0.02%	746
2025 Q4	$33.9M	Buy	443,704 +40,687	+10%	+$3.12M	0.03%	459
2025 Q3	$33.1M	Buy	403,017 +92,820	+30%	+$7.98M	0.03%	456
2025 Q2	$27.8M	Sell	310,197 -33,419	-10%	-$2.64M	0.03%	463
2025 Q1	$21M	Buy	343,616 +320,917	+1,414%	+$21.9M	0.03%	504
2024 Q4	$1.48M	Sell	22,699 -85,133	-79%	-$4.21M	﹤0.01%	1559
2024 Q3	$3.47M	Sell	107,832 -64,928	-38%	-$2.15M	﹤0.01%	1143
2024 Q2	$5.3M	Buy	+172,760	New	+$5.68M	0.01%	975

Other funds holding RBRK

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

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

VOYA Investment Management Atlanta, Georgia $116B AUM 61.47% 1-Year Est. Return

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

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

Marshall Wace's RBRK Position: Q2 2026 in Review

Marshall Wace reduced its Rubrik (RBRK) stake by 88% in Q2 2026, selling an estimated $20.2M and leaving 42,031 shares worth $3.37M. The position accounts for ﹤0.01% of the portfolio, ranked #1572.

Marshall Wace first reported a position in RBRK in Q2 2024 and has held it in 9 quarters since. The position peaked at $33.9M in Q4 2025. 574 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

Marshall Wace held 42,031 shares of Rubrik worth $3.37M as of Q2 2026.
Marshall Wace sold 321,000 Rubrik shares in Q2 2026, an estimated $20.2M.
Rubrik made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #1572 holding.
Marshall Wace first reported a position in Rubrik in Q2 2024 and has held it in 9 quarters since.
Marshall Wace's Rubrik position peaked at $33.9M in Q4 2025.
574 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.