Atreides Management’s Rubrik RBRK Stock Holding History

Atreides Management’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	–	Sell	-566,454	Closed	-$27.7M	–	68
2026 Q1	$27.7M	Sell	566,454 -328,575	-37%	-$18.9M	0.55%	40
2025 Q4	$68.5M	Buy	895,029 +142,277	+19%	+$10.9M	0.84%	32
2025 Q3	$61.9M	Buy	752,752 +281,472	+60%	+$24.2M	1.21%	25
2025 Q2	$42.2M	Buy	+471,280	New	+$37.3M	1.17%	30

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

Atreides Management's RBRK Position: Q2 2026 in Review

Atreides Management sold out of Rubrik (RBRK) in Q2 2026, closing a stake of 566,454 shares — an estimated $27.7M sold.

Atreides Management first reported a position in RBRK in Q2 2025 and held it in 4 quarters. The position peaked at $68.5M in Q4 2025. 570 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

Atreides Management reported no remaining Rubrik position as of Q2 2026 after selling out during the quarter.
Atreides Management sold 566,454 Rubrik shares in Q2 2026, an estimated $27.7M.
Atreides Management first reported a position in Rubrik in Q2 2025 and held it in 4 quarters.
Atreides Management's Rubrik position peaked at $68.5M in Q4 2025.
570 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

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