Mariner
OM icon

Mariner’s Outset Medical OM Stock Holding History

Mariner’s Portfolio OM Stock Details OM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$140K Buy
32,413
+13,943
+75% +$61K ﹤0.01% 3256
2026
Q1 		$70.9K Buy
+18,470
New +$75.7K ﹤0.01% 3382
2024
Q2 		– Sell
-686
Closed -$22.8K – 3253
2024
Q1 		$22.8K Sell
686
-236
-26% -$11.9K ﹤0.01% 3091
2023
Q4 		$74.9K Buy
+922
New +$75K ﹤0.01% 2899

Other funds holding OM

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BCM
BML Capital Management Zionsville, Indiana $176M AUM 123.21% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
PHS
PFM Health Sciences San Francisco, California $1.17B AUM 92.19% 1-Year Est. Return
Ensign Peak Advisors
Ensign Peak Advisors Salt Lake City, Utah $60.8B AUM 42.06% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.56% 1-Year Est. Return

Mariner's OM Position: Q2 2026 in Review

Mariner increased its Outset Medical (OM) stake by 75% in Q2 2026, buying an estimated $61K and bringing the position to 32,413 shares worth $140K. The position accounts for ﹤0.01% of the portfolio, ranked #3256.

Mariner first reported a position in OM in Q4 2023 and has held it in 4 quarters since. 93 funds tracked by Wall St. Rank hold OM as of Q2 2026.

  • Mariner held 32,413 shares of Outset Medical worth $140K as of Q2 2026.
  • Mariner bought 13,943 Outset Medical shares in Q2 2026, an estimated $61K.
  • Outset Medical made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3256 holding.
  • Mariner first reported a position in Outset Medical in Q4 2023 and has held it in 4 quarters since.
  • 93 funds tracked by Wall St. Rank held Outset Medical as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.