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Joel Greenblatt’s Rubrik RBRK Stock Holding History

Joel Greenblatt’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 		$8.65M Buy
107,773
+52,539
+95% +$3.3M 0.02% 834
2026
Q1 		$2.7M Buy
55,234
+38,529
+231% +$2.21M 0.01% 1030
2025
Q4 		$1.28M Sell
16,705
-8,859
-35% -$680K ﹤0.01% 1184
2025
Q3 		$2.1M Buy
25,564
+18,155
+245% +$1.56M 0.01% 987
2025
Q2 		$664K Sell
7,409
-5,240
-41% -$414K ﹤0.01% 1247
2025
Q1 		$771K Buy
12,649
+7,630
+152% +$521K 0.01% 1082
2024
Q4 		$328K Buy
+5,019
New +$248K ﹤0.01% 1239

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

Joel Greenblatt's RBRK Position: Q2 2026 in Review

Joel Greenblatt increased its Rubrik (RBRK) stake by 95% in Q2 2026, buying an estimated $3.3M and bringing the position to 107,773 shares worth $8.65M. The position accounts for 0.02% of the portfolio, ranked #834.

Joel Greenblatt first reported a position in RBRK in Q4 2024 and has held it in 7 quarters since. 569 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

  • Joel Greenblatt held 107,773 shares of Rubrik worth $8.65M as of Q2 2026.
  • Joel Greenblatt bought 52,539 Rubrik shares in Q2 2026, an estimated $3.3M.
  • Rubrik made up 0.02% of Joel Greenblatt's portfolio in Q2 2026, its #834 holding.
  • Joel Greenblatt first reported a position in Rubrik in Q4 2024 and has held it in 7 quarters since.
  • 569 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

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