Millennium Management
RBRK icon

Millennium Management’s Rubrik RBRK Stock Holding History

Millennium 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 		– Sell
-38,100
Closed -$2.91M – 6501
2025
Q4 		$2.91M Buy
38,100
+11,900
+45% +$913K ﹤0.01% 3595
2025
Q3 		$2.15M Buy
+26,200
New +$2.25M ﹤0.01% 3990
2025
Q1 		– Sell
-10,000
Closed -$654K – 6510
2024
Q4 		$654K Sell
10,000
-90,000
-90% -$4.45M ﹤0.01% 4536
2024
Q3 		$3.21M Buy
+100,000
New +$3.31M ﹤0.01% 3237

Other funds holding RBRK

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
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
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return
PC
PointState Capital New York $7.9B AUM 42.31% 1-Year Est. Return
Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $94.8B AUM 24.11% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Millennium Management's RBRK Position: Q1 2026 in Review

Millennium Management reduced its Rubrik (RBRK) stake by 67% in Q1 2026, selling an estimated $46.9M and leaving 399,690 shares worth $19.6M. The position accounts for 0.01% of the portfolio, ranked #1569.

Millennium Management first reported a position in RBRK in Q2 2024 and has held it in 8 quarters since. The position peaked at $93.1M in Q4 2025. 462 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

  • Millennium Management held 399,690 shares of Rubrik worth $19.6M as of Q1 2026.
  • Millennium Management sold 817,164 Rubrik shares in Q1 2026, an estimated $46.9M.
  • Rubrik made up 0.01% of Millennium Management's portfolio in Q1 2026, its #1569 holding.
  • Millennium Management first reported a position in Rubrik in Q2 2024 and has held it in 8 quarters since.
  • Millennium Management's Rubrik position peaked at $93.1M in Q4 2025.
  • 462 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

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