Citadel Advisors
RBRK icon

Citadel Advisors’s Rubrik RBRK Stock Holding History

Citadel Advisors’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 		$25M Sell
510,100
-1,406,100
-73% -$80.7M ﹤0.01% 2058
2025
Q4 		$147M Buy
1,916,200
+1,310,800
+217% +$101M 0.02% 640
2025
Q3 		$49.8M Buy
605,400
+219,800
+57% +$18.9M 0.01% 1379
2025
Q2 		$34.5M Buy
385,600
+160,900
+72% +$12.7M 0.01% 1542
2025
Q1 		$13.7M Buy
224,700
+93,600
+71% +$6.39M ﹤0.01% 2472
2024
Q4 		$8.57M Buy
131,100
+99,600
+316% +$4.92M ﹤0.01% 3185
2024
Q3 		$1.01M Sell
31,500
-32,100
-50% -$1.06M ﹤0.01% 6846
2024
Q2 		$1.95M Buy
+63,600
New +$2.09M ﹤0.01% 5367

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

Citadel Advisors's RBRK Position: Q1 2026 in Review

Citadel Advisors increased its Rubrik (RBRK) stake by 27% in Q1 2026, buying an estimated $8.92M and bringing the position to 731,217 shares worth $35.8M. The position accounts for 0.01% of the portfolio, ranked #1676.

Citadel Advisors first reported a position in RBRK in Q2 2024 and has held it in 8 quarters since. The position peaked at $220M in Q3 2025. 462 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

  • Citadel Advisors held 731,217 shares of Rubrik worth $35.8M as of Q1 2026.
  • Citadel Advisors bought 155,344 Rubrik shares in Q1 2026, an estimated $8.92M.
  • Rubrik made up 0.01% of Citadel Advisors's portfolio in Q1 2026, its #1676 holding.
  • Citadel Advisors first reported a position in Rubrik in Q2 2024 and has held it in 8 quarters since.
  • Citadel Advisors's Rubrik position peaked at $220M in Q3 2025.
  • 462 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.