Jane Street’s Rubrik RBRK Stock Holding History

Jane Street’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	$94.3M	Sell	1,174,300 -2,200	-0.2%	-$138K	0.01%	970
2026 Q1	$57.6M	Buy	1,176,500 +33,500	+3%	+$1.92M	0.01%	965
2025 Q4	$87.4M	Sell	1,143,000 -55,200	-5%	-$4.23M	0.01%	650
2025 Q3	$98.6M	Buy	1,198,200 +1,054,800	+736%	+$90.7M	0.02%	605
2025 Q2	$12.8M	Sell	143,400 -12,100	-8%	-$957K	﹤0.01%	1879
2025 Q1	$9.48M	Buy	155,500 +133,200	+597%	+$9.09M	﹤0.01%	2059
2024 Q4	$1.46M	Buy	22,300 +8,400	+60%	+$415K	﹤0.01%	4699
2024 Q3	$447K	Sell	13,900 -3,200	-19%	-$106K	﹤0.01%	7384
2024 Q2	$524K	Buy	+17,100	New	+$562K	﹤0.01%	6945

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

Jane Street's RBRK Position: Q2 2026 in Review

Jane Street increased its Rubrik (RBRK) stake by 234% in Q2 2026, buying an estimated $660K and bringing the position to 14,992 shares worth $1.2M. The position accounts for ﹤0.01% of the portfolio, ranked #6143.

Jane Street first reported a position in RBRK in Q2 2024 and has held it in 9 quarters since. The position peaked at $14M in Q1 2025. 574 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

Jane Street held 14,992 shares of Rubrik worth $1.2M as of Q2 2026.
Jane Street bought 10,501 Rubrik shares in Q2 2026, an estimated $660K.
Rubrik made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #6143 holding.
Jane Street first reported a position in Rubrik in Q2 2024 and has held it in 9 quarters since.
Jane Street's Rubrik position peaked at $14M in Q1 2025.
574 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.