Mariner
RBRK icon

Mariner’s Rubrik RBRK Stock Holding History

Mariner’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 		$2.64M Buy
53,990
+22,733
+73% +$1.3M ﹤0.01% 1380
2025
Q4 		$2.39M Buy
31,257
+18,158
+139% +$1.39M ﹤0.01% 1396
2025
Q3 		$1.08M Buy
13,099
+10,041
+328% +$863K ﹤0.01% 1846
2025
Q2 		$274K Buy
+3,058
New +$242K ﹤0.01% 2791

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

Mariner's RBRK Position: Q1 2026 in Review

Mariner increased its Rubrik (RBRK) stake by 73% in Q1 2026, buying an estimated $1.3M and bringing the position to 53,990 shares worth $2.64M. The position accounts for ﹤0.01% of the portfolio, ranked #1380.

Mariner first reported a position in RBRK in Q2 2025 and has held it in 4 quarters since. 462 funds tracked by Wall St. Rank hold RBRK as of Q1 2026.

  • Mariner held 53,990 shares of Rubrik worth $2.64M as of Q1 2026.
  • Mariner bought 22,733 Rubrik shares in Q1 2026, an estimated $1.3M.
  • Rubrik made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #1380 holding.
  • Mariner first reported a position in Rubrik in Q2 2025 and has held it in 4 quarters since.
  • 462 funds tracked by Wall St. Rank held Rubrik as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.