Outset Medical Inc
Ownership
Ownership Structure
Who owns Outset Medical Inc (OM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 77.3% of the shares are freely tradable; institutional investors hold 84.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 14.59 | 2,742,887 | +0.0 | 06/30/2026 |
| BML Capital Management LLC | 13.40 | 2,519,701 | +32.5 | 06/30/2026 |
| AQR Capital Management LLC | 5.31 | 998,961 | +23.6 | 06/30/2026 |
| Perceptive Advisors LLC | 4.43 | 833,333 | +0.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.15 | 780,134 | +2.1 | 06/30/2026 |
| Assenagon Asset Management SA | 3.61 | 678,876 | +34.7 | 06/30/2026 |
| Bank of America Corp | 3.54 | 665,847 | -29.9 | 06/30/2026 |
| Partner Fund Management LP | 3.10 | 582,122 | -2.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Fidelity Select Health Care | 8.09 | 1,520,000 | +0.0 | 08/31/2026 |
| Fidelity Advisor Health Care I | 4.26 | 800,000 | +0.0 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Leonard Braden Michael | 10% Owner | 2,764,610 | 11,058,440 $ | Oct 2, 2026 | indirect |
| Trigg Leslie | Chair and CEO | 194,597 | 778,388 $ | Aug 17, 2026 | direct |
| Gaeta Renee | Chief Financial Officer | 180,840 | 723,360 $ | Aug 17, 2026 | direct |
| Brottem John L. | General Counsel | 87,475 | 349,900 $ | Aug 17, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 2, 2026 | Leonard Braden Michael | 10% Owner | Buy | 16,575 | 3.88 | 64,241 |
| Oct 1, 2026 | Leonard Braden Michael | 10% Owner | Buy | 228,334 | 3.53 | 806,019 |
| Aug 17, 2026 | Trigg Leslie | Chair and CEO | Sell | 3,437 | 4.39 | 15,088 |
| Aug 17, 2026 | Brottem John L. | General Counsel | Sell | 2,632 | 4.39 | 11,554 |
| Aug 17, 2026 | Gaeta Renee | Chief Financial Officer | Sell | 4,543 | 4.39 | 19,944 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.