Octahedron Capital Management’s Rubrik RBRK Stock Holding History

Octahedron Capital 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 Q1	$5.44M	Buy	111,000 +55,400	+100%	+$3.18M	3.95%	8
2025 Q4	$4.25M	Sell	55,600 -9,200	-14%	-$706K	2.89%	11
2025 Q3	$5.33M	Buy	64,800 +57,300	+764%	+$4.93M	3.03%	12
2025 Q2	$672K	Sell	7,500 -13,809	-65%	-$1.09M	0.51%	22
2025 Q1	$1.3M	Sell	21,309 -14,151	-40%	-$966K	1.13%	18
2024 Q4	$2.32M	Sell	35,460 -201,450	-85%	-$9.95M	2.2%	17
2024 Q3	$7.62M	Buy	236,910 +75,910	+47%	+$2.51M	8.47%	5
2024 Q2	$4.94M	Buy	+161,000	New	+$5.29M	4.95%	11

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

Octahedron Capital Management's RBRK Position: Q1 2026 in Review

Octahedron Capital Management increased its Rubrik (RBRK) stake by 100% in Q1 2026, buying an estimated $3.18M and bringing the position to 111,000 shares worth $5.44M. The position accounts for 3.95% of the portfolio, ranked #8.

Octahedron Capital Management first reported a position in RBRK in Q2 2024 and has held it in 8 quarters since. The position peaked at $7.62M in Q3 2024. 462 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

Octahedron Capital Management held 111,000 shares of Rubrik worth $5.44M as of Q1 2026.
Octahedron Capital Management bought 55,400 Rubrik shares in Q1 2026, an estimated $3.18M.
Rubrik made up 3.95% of Octahedron Capital Management's portfolio in Q1 2026, its #8 holding.
Octahedron Capital Management first reported a position in Rubrik in Q2 2024 and has held it in 8 quarters since.
Octahedron Capital Management's Rubrik position peaked at $7.62M in Q3 2024.
462 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

Based on Octahedron Capital Management's 13F filing for Q1 2026, filed 15 May 2026.