Hudson Bay Capital Management
RBRK icon

Hudson Bay Capital Management’s Rubrik RBRK Stock Holding History

Hudson Bay 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 		$9.95M Hold
124,000
– – 0.03% 369
2026
Q1 		$6.07M Hold
124,000
– – 0.02% 450
2025
Q4 		$9.48M Sell
124,000
-235,000
-65% -$18M 0.03% 357
2025
Q3 		$29.5M Sell
359,000
-39,000
-10% -$3.35M 0.1% 169
2025
Q2 		$35.7M Buy
+398,000
New +$31.5M 0.12% 134
2024
Q3 		– Sell
-50,000
Closed -$1.53M – 1075
2024
Q2 		$1.53M Buy
+50,000
New +$1.64M 0.01% 560

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 $3.38T AUM 44.17% 1-Year Est. Return

Hudson Bay Capital Management's RBRK Position: Q2 2026 in Review

Hudson Bay Capital Management held its Rubrik (RBRK) position steady in Q2 2026 at 124,000 shares worth $9.95M. The position accounts for 0.03% of the portfolio, ranked #369.

Hudson Bay Capital Management first reported a position in RBRK in Q2 2024 and has held it in 6 quarters since. The position peaked at $35.7M in Q2 2025. 575 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

  • Hudson Bay Capital Management held 124,000 shares of Rubrik worth $9.95M as of Q2 2026.
  • Hudson Bay Capital Management left its Rubrik share count unchanged in Q2 2026.
  • Rubrik made up 0.03% of Hudson Bay Capital Management's portfolio in Q2 2026, its #369 holding.
  • Hudson Bay Capital Management first reported a position in Rubrik in Q2 2024 and has held it in 6 quarters since.
  • Hudson Bay Capital Management's Rubrik position peaked at $35.7M in Q2 2025.
  • 575 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

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