PEAK6’s Rubrik RBRK Stock Holding History

PEAK6’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 Q1	$4.9K	Sell	100 -100	-50%	-$5.74K	﹤0.01%	2551
2025 Q4	$15.3K	Sell	200 -300	-60%	-$23K	﹤0.01%	2655
2025 Q3	$41.1K	Buy	+500	New	+$43K	﹤0.01%	2700

Other funds holding RBRK

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return

PointState Capital New York $7.9B AUM 42.31% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return

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

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

PEAK6's RBRK Position: Q1 2026 in Review

PEAK6 opened a new position in Rubrik (RBRK) in Q1 2026: 27,373 shares worth $1.34M. The stake represents ﹤0.01% of the portfolio and ranks #1575 among its holdings. This is a return to the name: PEAK6 previously reported a position in RBRK as recently as Q2 2025.

PEAK6 first reported a position in RBRK in Q2 2025 and has held it in 2 quarters since. 462 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

PEAK6 held 27,373 shares of Rubrik worth $1.34M as of Q1 2026.
Rubrik was a new PEAK6 position in Q1 2026.
Rubrik made up ﹤0.01% of PEAK6's portfolio in Q1 2026, its #1575 holding.
PEAK6 first reported a position in Rubrik in Q2 2025 and has held it in 2 quarters since.
462 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.