MG
RBRK icon

Michael Gelband’s Rubrik RBRK Stock Holding History

Michael Gelband’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 		$7M Sell
87,157
-74,184
-46% -$4.67M 0.05% 391
2026
Q1 		$7.9M Buy
+161,341
New +$9.26M 0.06% 294
2025
Q4 		– Sell
-40,866
Closed -$3.36M – 2151
2025
Q3 		$3.36M Buy
+40,866
New +$3.51M 0.03% 551

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

Michael Gelband's RBRK Position: Q2 2026 in Review

Michael Gelband reduced its Rubrik (RBRK) stake by 46% in Q2 2026, selling an estimated $4.67M and leaving 87,157 shares worth $7M. The position accounts for 0.05% of the portfolio, ranked #391.

Michael Gelband first reported a position in RBRK in Q3 2025 and has held it in 3 quarters since. The position peaked at $7.9M in Q1 2026. 569 funds tracked by Wall St. Rank hold RBRK as of Q2 2026.

  • Michael Gelband held 87,157 shares of Rubrik worth $7M as of Q2 2026.
  • Michael Gelband sold 74,184 Rubrik shares in Q2 2026, an estimated $4.67M.
  • Rubrik made up 0.05% of Michael Gelband's portfolio in Q2 2026, its #391 holding.
  • Michael Gelband first reported a position in Rubrik in Q3 2025 and has held it in 3 quarters since.
  • Michael Gelband's Rubrik position peaked at $7.9M in Q1 2026.
  • 569 funds tracked by Wall St. Rank held Rubrik as of Q2 2026.

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