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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
Q2 		$16.3M Buy
203,000
+92,000
+83% +$5.79M 8.34% 6
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
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $116B AUM 61.47% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Octahedron Capital Management's RBRK Position: Q2 2026 in Review

Octahedron Capital Management increased its Rubrik (RBRK) stake by 83% in Q2 2026, buying an estimated $5.79M and bringing the position to 203,000 shares worth $16.3M. The position accounts for 8.34% of the portfolio, ranked #6.

Octahedron Capital Management first reported a position in RBRK in Q2 2024 and has held it in 9 quarters since. 574 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

  • Octahedron Capital Management held 203,000 shares of Rubrik worth $16.3M as of Q2 2026.
  • Octahedron Capital Management bought 92,000 Rubrik shares in Q2 2026, an estimated $5.79M.
  • Rubrik made up 8.34% of Octahedron Capital Management's portfolio in Q2 2026, its #6 holding.
  • Octahedron Capital Management first reported a position in Rubrik in Q2 2024 and has held it in 9 quarters since.
  • 574 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

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