Marshall Wace
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Marshall Wace’s Outset Medical OM Stock Holding History

Marshall Wace’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 		$916K Buy
+211,993
New +$927K ﹤0.01% 2239
2026
Q1 		– Sell
-170,758
Closed -$634K – 3553
2025
Q4 		$634K Sell
170,758
-248,360
-59% -$2.13M ﹤0.01% 2145
2025
Q3 		$5.92M Sell
419,118
-102,282
-20% -$1.59M 0.01% 1128
2025
Q2 		$10M Sell
521,400
-128,864
-20% -$2.01M 0.01% 839
2025
Q1 		$7.19M Buy
+650,264
New +$7.75M 0.01% 901
2024
Q4 		– Sell
-6,602
Closed -$67.3K – 2892
2024
Q3 		$67.3K Sell
6,602
-14,344
-68% -$427K ﹤0.01% 2405
2024
Q2 		$1.21M Buy
20,946
+17,383
+488% +$852K ﹤0.01% 1607
2024
Q1 		$119K Buy
3,563
+2,214
+164% +$112K ﹤0.01% 2292
2023
Q4 		$109K Buy
+1,349
New +$110K ﹤0.01% 2036
2023
Q2 		– Sell
-8,090
Closed -$2.23M – 2826
2023
Q1 		$2.23M Buy
+8,090
New +$2.97M ﹤0.01% 1395
2022
Q4 		– Sell
-12,552
Closed -$3M – 3286
2022
Q3 		$3M Buy
12,552
+1,134
+10% +$304K 0.01% 1747
2022
Q2 		$2.55M Buy
+11,418
New +$4.91M 0.01% 1818
2022
Q1 		– Sell
-3,858
Closed -$2.67M – 3829
2021
Q4 		$2.67M Buy
3,858
+915
+31% +$677K ﹤0.01% 1848
2021
Q3 		$2.18M Buy
+2,943
New +$2.01M 0.01% 1477
2021
Q2 		– Sell
-8,716
Closed -$7.11M – 2956
2021
Q1 		$7.11M Sell
8,716
-7,657
-47% -$5.91M 0.03% 633
2020
Q4 		$14M Buy
+16,373
New +$12.6M 0.08% 263

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

Marshall Wace's OM Position: Q2 2026 in Review

Marshall Wace opened a new position in Outset Medical (OM) in Q2 2026: 211,993 shares worth $916K. The stake represents ﹤0.01% of the portfolio and ranks #2239 among its holdings. This is a return to the name: Marshall Wace previously reported a position in OM as recently as Q4 2025.

Marshall Wace first reported a position in OM in Q4 2020 and has held it in 16 quarters since. The position peaked at $14M in Q4 2020. 92 funds tracked by Wall St. Rank hold OM as of Q2 2026.

  • Marshall Wace held 211,993 shares of Outset Medical worth $916K as of Q2 2026.
  • Outset Medical was a new Marshall Wace position in Q2 2026.
  • Outset Medical made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #2239 holding.
  • Marshall Wace first reported a position in Outset Medical in Q4 2020 and has held it in 16 quarters since.
  • Marshall Wace's Outset Medical position peaked at $14M in Q4 2020.
  • 92 funds tracked by Wall St. Rank held Outset Medical as of Q2 2026.

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