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Outset Medical (OM) Institutional Ownership

Outset Medical logo
$3.67 +0.03 (+0.82%)
Closing price 09/2/2026 04:00 PM Eastern
Extended Trading
$3.70 +0.04 (+0.95%)
As of 09/2/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Outset Medical (NASDAQ:OM)

Number of
Institutional Buyers
(last 12 months)
39
Total
Institutional Inflows
(last 12 months)
$35.08M
Number of
Institutional Sellers
(last 12 months)
17
Total
Institutional Outflows
(last 12 months)
$25.22M
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OM Institutional Buying and Selling by Quarter

Outset Medical Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/6/2026 Bank of New York Mellon Corp27,899$121K0.0%N/A0.151%
7/10/2026 Marquette Asset Management LLC48,981$212K0.0%N/A0.264%
7/8/2026 Assenagon Asset Management S.A.339,438$1.47M0.0%-32.7%1.831%
5/14/2026 Renaissance Technologies LLC222,075$853K0.0%+391.3%1.198%
5/14/2026 Sei Investments Co.35,366$136K0.0%+15.5%0.191%
5/7/2026 Dimensional Fund Advisors LP113,365$435K0.0%-28.4%0.612%
5/6/2026 BML Capital Management LLC1,902,201$7.30M4.7%+250.2%10.266%
5/5/2026 Bank of New York Mellon Corp62,360$239K0.0%+4.1%0.337%
4/29/2026 R Squared Ltd17,052$65K0.0%N/A0.092%
4/20/2026 Assenagon Asset Management S.A.504,093$1.94M0.0%-0.8%2.753%
3/20/2026 Hsbc Holdings PLC12,322$46K0.0%N/A0.067%
2/26/2026 Aristides Capital LLC47,700$177K0.0%N/A0.261%
2/18/2026 XTX Topco Ltd100,612$373K0.0%+876.9%0.554%
2/18/2026 Millennium Management LLC30,768$114K0.0%-92.7%0.170%
2/18/2026 Engineers Gate Manager LP50,178$186K0.0%N/A0.276%
2/18/2026 Bridgeway Capital Management LLC20,000$74K0.0%N/A0.110%
2/17/2026 AQR Capital Management LLC180,363$669K0.0%+248.0%0.994%
2/17/2026 Jain Global LLC20,895$78K0.0%N/A0.115%
2/17/2026 Jump Financial LLC32,771$122K0.0%N/A0.181%
2/17/2026 Price T Rowe Associates Inc. MD28,627$107K0.0%+93.1%0.158%
2/17/2026 Graham Capital Management L.P.51,070$189K0.0%+240.7%0.281%
2/16/2026 Squarepoint Ops LLC59,285$220K0.0%-37.6%0.327%
2/16/2026 Barclays PLC37,682$140K0.0%+9.8%0.208%
2/13/2026 Marshall Wace LLP170,758$634K0.0%-59.3%0.941%
2/13/2026 Stifel Financial Corp79,924$297K0.0%N/A0.440%
2/13/2026 Charles Schwab Investment Management Inc.41,162$153K0.0%-21.3%0.227%
2/13/2026 Wells Fargo & Company MN18,271$68K0.0%+57.0%0.101%
2/12/2026 HRT Financial LP15,665$58K0.0%N/A0.086%
2/12/2026 Aristides Capital LLC47,700$177K0.0%N/A0.263%
2/12/2026 Paradigm Capital Management Inc. NY40,000$148K0.0%N/A0.220%
2/12/2026 Renaissance Technologies LLC45,205$168K0.0%+11.7%0.249%
2/12/2026 Dimensional Fund Advisors LP158,352$587K0.0%+372.2%0.872%
2/12/2026 Ensign Peak Advisors Inc560,169$2.08M0.0%+71.8%3.086%
2/12/2026 Nuveen LLC65,304$242K0.0%+88.3%0.360%
2/11/2026 Deutsche Bank AG177,681$659K0.0%+157.7%0.979%
2/11/2026 Los Angeles Capital Management LLC7,805$29K0.0%N/A0.043%
2/9/2026 Geode Capital Management LLC400,363$1.49M0.0%+0.8%2.205%
2/3/2026 BML Capital Management LLC543,180$2.02M1.7%N/A2.992%
1/9/2026 Assenagon Asset Management S.A.508,414$1.89M0.0%+34.8%2.801%
1/1/2026 JPMorgan Chase & Co.116,306$1.64M0.0%+1,276.1%0.641%
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11/17/2025 Alyeska Investment Group L.P.1,614,582$22.80M0.1%+10.2%8.896%
11/17/2025 Verition Fund Management LLC15,796$223K0.0%-31.9%0.087%
11/17/2025 Parkman Healthcare Partners LLC454,512$6.42M0.7%-17.2%2.504%
11/17/2025 Millennium Management LLC421,409$5.95M0.0%+165.8%2.322%
11/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.7,646$108K0.0%-21.2%0.042%
11/17/2025 Citadel Advisors LLC96,084$1.36M0.0%+372.8%0.529%
11/17/2025 Bank of America Corp DE23,051$325K0.0%-83.0%0.127%
11/17/2025 Algert Global LLC72,931$1.03M0.0%+419.8%0.402%
11/14/2025 Schonfeld Strategic Advisors LLC114,800$1.62M0.0%-55.3%0.633%
11/14/2025 Durable Capital Partners LP1,023,706$14.46M0.1%-38.2%5.640%
11/14/2025 Two Sigma Investments LP146,598$2.07M0.0%+97.9%0.808%
11/14/2025 Squarepoint Ops LLC94,966$1.34M0.0%+155.0%0.523%
11/13/2025 Marshall Wace LLP419,118$5.92M0.0%-19.6%2.309%
11/13/2025 UBS Group AG72,441$1.02M0.0%-9.0%0.399%
11/13/2025 BNP Paribas Financial Markets103,766$1.47M0.0%+4,929.9%0.572%
11/13/2025 Russell Investments Group Ltd.12,391$175K0.0%N/A0.068%
11/12/2025 Pura Vida Investments LLC5,000$71K0.5%-98.8%0.028%
11/12/2025 Dimensional Fund Advisors LP33,535$474K0.0%N/A0.189%
11/12/2025 Quantbot Technologies LP2,245$32K0.0%-71.6%0.013%
11/12/2025 R Squared Ltd10,308$146K0.1%N/A0.058%
11/7/2025Vanguard Group Inc.982,618$13.88M0.0%-0.9%5.530%
11/7/2025 JPMorgan Chase & Co.116,306$1.64M0.0%+1,276.1%0.655%
11/6/2025 Rhumbline Advisers24,316$343K0.0%-6.4%0.137%
11/3/2025 Federated Hermes Inc.72,117$1.02M0.0%+44,416.7%0.406%
10/31/2025 Y Intercept Hong Kong Ltd54,005$763K0.0%N/A0.304%
10/7/2025 Assenagon Asset Management S.A.377,033$5.32M0.0%N/A2.122%
8/27/2025 Squarepoint Ops LLC37,247$716K0.0%+77.4%0.210%
8/15/2025 Massar Capital Management LP20,000$384K0.3%N/A0.113%
8/15/2025 BNP Paribas Financial Markets2,063$40K0.0%+7,013.8%0.012%
8/15/2025 Birchview Capital LP34,584$664K0.7%+40.7%0.195%
8/15/2025 Balyasny Asset Management L.P.143,160$2.75M0.0%N/A0.806%
8/15/2025 Bank of America Corp DE135,890$2.61M0.0%+37,130.1%0.765%
8/14/2025 PDT Partners LLC14,159$272K0.0%N/A0.080%
8/14/2025 Durable Capital Partners LP1,657,126$31.83M0.2%-4.8%9.325%
8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.9,703$186K0.0%N/A0.055%
8/13/2025 Marshall Wace LLP521,400$10.02M0.0%-19.8%2.935%
8/13/2025 Walleye Capital LLC56,101$1.08M0.0%N/A0.316%
8/13/2025 Invesco Ltd.12,109$233K0.0%N/A0.068%
8/13/2025 Quantbot Technologies LP7,893$152K0.0%N/A0.044%
8/13/2025 Pura Vida Investments LLC429,120$8.24M74.2%+8,482.4%2.415%
8/13/2025 New York State Common Retirement Fund5,600$108K0.0%N/A0.032%
8/12/2025 XTX Topco Ltd11,299$217K0.0%N/A0.064%
8/12/2025 Ameritas Investment Partners Inc.1,809$35K0.0%N/A0.010%
8/12/2025 Rhumbline Advisers25,975$499K0.0%N/A0.146%
8/12/2025 Legal & General Group Plc1,754$34K0.0%N/A0.010%
8/12/2025 JPMorgan Chase & Co.8,452$162K0.0%+662.8%0.048%
8/12/2025 Ensign Peak Advisors Inc314,522$6.04M0.0%+272.4%1.770%
8/8/2025 Police & Firemen s Retirement System of New Jersey4,055$78K0.0%N/A0.023%
8/8/2025 Geode Capital Management LLC415,552$7.98M0.0%+955.9%2.345%
5/21/2025Acadian Asset Management LLC89,299$985K0.0%-91.1%2.484%
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5/19/2025Jane Street Group LLC33,912$375K0.0%-68.9%0.943%
5/16/2025Woodline Partners LP1,325,784$14.66M0.1%N/A36.879%
5/16/2025Parkman Healthcare Partners LLC231,099$2.56M0.3%N/A6.428%
5/16/2025Alyeska Investment Group L.P.1,703,083$18.84M0.1%N/A47.374%
5/15/2025Birchview Capital LP24,584$272K0.2%-93.3%0.684%
5/15/2025Durable Capital Partners LP1,740,216$19.25M0.2%N/A48.407%
5/15/2025GMT Capital Corp98,108$1.09M0.1%-93.3%2.729%
5/14/2025T. Rowe Price Investment Management Inc.1,603,056$17.73M0.0%N/A44.591%
5/12/2025National Bank of Canada FI17,602$195K0.0%-64.8%0.490%
5/7/2025TD Asset Management Inc53,267$589K0.0%N/A1.482%


OM Institutional Ownership - Frequently Asked Questions

During the previous two years, 80 institutional investors and hedge funds held shares of Outset Medical. The most heavily invested institutionals were Alyeska Investment Group L.P. ($22.80M), T. Rowe Price Investment Management Inc. ($17.73M), Woodline Partners LP ($14.66M), Durable Capital Partners LP ($14.46M), Vanguard Group Inc. ($13.88M), Massachusetts Financial Services Co. MA ($9.29M), and BML Capital Management LLC ($7.30M).Learn more on Outset Medical's institutional investors.

Of the 65 institutional investors that purchased Outset Medical's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BML Capital Management LLC ($1.90M), Alyeska Investment Group L.P. ($1.85M), Durable Capital Partners LP ($1.74M), T. Rowe Price Investment Management Inc. ($1.60M), Woodline Partners LP ($1.33M), GSA Capital Partners LLP ($1.00M), and Massachusetts Financial Services Co. MA ($840.25K).

Institutional investors have bought a total of 5,025,752 shares in the last 24 months. This purchase volume represents approximately $35.08M in transactions.

Of the 17 institutional investors that sold Outset Medical's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Durable Capital Partners LP ($633.42K), Pura Vida Investments LLC ($424.12K), Millennium Management LLC ($390.64K), Marshall Wace LLP ($350.64K), Assenagon Asset Management S.A. ($168.98K), Schonfeld Strategic Advisors LLC ($141.88K), and Bank of America Corp DE ($112.84K).

Institutional investors have sold a total of 2,441,603 shares in the last 24 months. This volume of shares sold represents approximately $25.22M in transactions.


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Institutional ownership data for NASDAQ:OM is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/6/2026. New 13F filings are added each quarter as they're published.
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