Wellington Management Group’s Rubrik RBRK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$24.1M Buy
491,674
+118,141
+32% +$6.78M ﹤0.01% 935
2025
Q4
$28.6M Buy
373,533
+215,127
+136% +$16.5M 0.01% 910
2025
Q3
$13M Buy
+158,406
New +$13.6M ﹤0.01% 1180

Other funds holding RBRK

Wellington Management Group's RBRK Position: Q1 2026 in Review

Wellington Management Group increased its Rubrik (RBRK) stake by 32% in Q1 2026, buying an estimated $6.78M and bringing the position to 491,674 shares worth $24.1M. The position accounts for ﹤0.01% of the portfolio, ranked #935.

Wellington Management Group first reported a position in RBRK in Q3 2025 and has held it in 3 quarters since. The position peaked at $28.6M in Q4 2025. 462 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

  • Wellington Management Group held 491,674 shares of Rubrik worth $24.1M as of Q1 2026.
  • Wellington Management Group bought 118,141 Rubrik shares in Q1 2026, an estimated $6.78M.
  • Rubrik made up ﹤0.01% of Wellington Management Group's portfolio in Q1 2026, its #935 holding.
  • Wellington Management Group first reported a position in Rubrik in Q3 2025 and has held it in 3 quarters since.
  • Wellington Management Group's Rubrik position peaked at $28.6M in Q4 2025.
  • 462 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

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