Outset Medical, Inc. (OM) shareholders
OMNasdaqElectromedical & Electrotherapeutic ApparatusFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 4, 2026Score 6/3071% below fair value
$3.73−0.13 (-3.37%)
Close on Nov 13, 2026Market cap $70.11MP/E –Yield –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
75.5%
14M of 19M shares
Institutional holders
93
20 new, 22 sold out
Net institutional buying
-1M
In Q2 2026
Insider trades, 12 months
2 buys · 23 sales
Net bought $501.07K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Perceptive Advisors LLC Joint filing with Joseph Edelman (9.50%), Perceptive Credit Advisors LLC (9.50%) and 1 more | 5,625,000 | 9.50% | 13G (passive) | Jan 8, 2025 |
| BML Investment Partners, L.P. | 2,764,610 | 14.70% | 13G (passive) amendment | Oct 2, 2026 |
| Abigail P. Johnson Joint filing with FMR LLC (14.50%) | 2,596,861 | 14.50% | 13G (passive) amendment | Mar 31, 2025 |
| Alyeska Investment Group, L.P. Joint filing with Alyeska Fund GP, LLC (9.61%), Anand Parekh (9.61%) | 1,703,083 | 9.61% | 13G (passive) | Mar 31, 2025 |
| Perceptive Credit Advisors, LLC Joint filing with Perceptive Advisors LLC (6.70%), Joseph Edelman (6.70%) and 1 more | 1,208,334 | 6.70% | 13G (passive) amendment | Mar 31, 2025 |
| AQR Capital Management, LLC Joint filing with AQR Capital Management Holdings, LLC (5.39%) | 998,961 | 5.39% | 13G (passive) | Jun 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of OM | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| FMR LLC | 2,742,887 | 14.59% | $11.85M | +1,214 | 0.00% |
| BML Capital Management, LLC | 2,519,701 | 13.40% | $10.89M | +617,500 | 6.18% |
| Aqr Capital Management LLC | 998,961 | 5.31% | $4.32M | +190,676 | 0.00% |
| Perceptive Advisors LLC | 833,333 | 4.43% | $3.60M | – | 0.05% |
| Vanguard Capital Management LLC | 780,134 | 4.15% | $3.37M | +16,312 | 0.00% |
| Assenagon Asset Management S.A. | 678,876 | 3.61% | $2.93M | +174,783 | 0.00% |
| Bank Of America Corp /De/ | 665,847 | 3.54% | $2.88M | −283,550 | 0.00% |
| PFM Health Sciences, LP | 582,122 | 3.10% | $2.51M | −12,508 | 0.22% |
| Ensign Peak Advisors, Inc | 434,341 | 2.31% | $1.88M | −92,244 | 0.00% |
| BlackRock, Inc. | 418,211 | 2.22% | $1.81M | −845,008 | 0.00% |
| Peapod Lane Capital LLC | 331,951 | 1.77% | $1.43M | New | 0.97% |
| Marshall Wace, Llp | 211,993 | 1.13% | $915.81K | New | 0.00% |
| Geode Capital Management, LLC | 204,652 | 1.09% | $884.54K | −216,721 | 0.00% |
| Stratos Wealth Partners, LTD. | 200,546 | 1.07% | $866.36K | – | 0.01% |
| UBS Group AG | 190,289 | 1.01% | $822.05K | −62,210 | 0.00% |
| Morgan Stanley | 181,983 | 0.97% | $786.17K | +12,540 | 0.00% |
| Millennium Management LLC | 181,794 | 0.97% | $785.35K | New | 0.00% |
| Goldman Sachs Group Inc | 173,460 | 0.92% | $749.35K | +80,100 | 0.00% |
| Jane Street Group, LLC | 139,197 | 0.74% | $601.33K | +74,387 | 0.00% |
| XTX Topco Ltd | 124,690 | 0.66% | $538.66K | −17,760 | 0.01% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 93 | 14M | 75.5% | 20 / 33 | 26 / 22 | 2M | 3M |
| Q1 2026 | 97 | 15M | 78.6% | 25 / 36 | 21 / 24 | 4M | 4M |
| Q4 2025 | 97 | 15M | 81.8% | 20 / 32 | 26 / 21 | 3M | 5M |
| Q3 2025 | 98 | 18M | 94.5% | 19 / 32 | 33 / 12 | 3M | 4M |
| Q2 2025 | 92 | 19M | 99.4% | 40 / 24 | 14 / 8 | 5M | 1M |
| Q1 2025 | 60 | 15M | 78.1% | 60 / 0 | 0 / 0 | 15M | 0M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
102 funds held OM in Q1 2026, 32% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of OM | Value | % of fund | As of |
|---|---|---|---|---|---|
| Select Health Care Portfolio | 1,520,000 | 8.09% | $7.43M | 0.13% | May 31, 2026 |
| Fidelity Advisor Health Care Fund | 800,000 | 4.26% | $3.66M | 0.12% | Jul 31, 2026 |
| Vanguard Total Stock Market Index Fund | 552,827 | 2.94% | $2.39M | 0.00% | Jun 30, 2026 |
| VIP Health Care Portfolio | 280,000 | 1.49% | $1.21M | 0.10% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 206,540 | 1.10% | $892.25K | 0.00% | Jun 30, 2026 |
| Fidelity Extended Market Index Fund | 98,662 | 0.52% | $482.46K | 0.00% | May 31, 2026 |
| Vanguard Russell 2000 Index Fund | 85,953 | 0.46% | $420.31K | 0.00% | May 31, 2026 |
| iShares Micro-Cap ETF | 57,965 | 0.31% | $250.41K | 0.02% | Jun 30, 2026 |
| iShares Core S&P Total U.S. Stock Market ETF | 37,640 | 0.20% | $162.60K | 0.00% | Jun 30, 2026 |
| Dimensional U.S. Small Cap ETF | 37,179 | 0.20% | $169.91K | 0.00% | Jul 31, 2026 |
| Fidelity Total Market Index Fund | 36,109 | 0.19% | $176.57K | 0.00% | May 31, 2026 |
| Fidelity Disruptive Medicine ETF | 34,000 | 0.18% | $166.26K | 0.41% | May 31, 2026 |
| AQR Small Cap Multi-Style Fund | 31,853 | 0.17% | $137.60K | 0.04% | Jun 30, 2026 |
| Fidelity Series Total Market Index Fund | 27,682 | 0.15% | $135.36K | 0.00% | May 31, 2026 |
| Avantis U.S. Small Cap Equity ETF | 26,735 | 0.14% | $130.73K | 0.00% | May 31, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Leslie Trigg | Chair and CEO, Director | 236,847 | 1.26% | Aug 18, 2026 |
| John L. Brottem | General Counsel | 87,475 | 0.47% | Aug 18, 2026 |
| Renee Gaeta | Chief Financial Officer | 180,840 | 0.96% | Aug 18, 2026 |
| Marc Nash | EVP Operations R&D & Service | 38,393 | 0.20% | May 19, 2026 |
| Derick A. Elliott | EVP, Commercial | 96,000 | 0.51% | Apr 8, 2026 |
| Nabeel Ahmed | Chief Financial Officer | 16,096 | 0.09% | May 16, 2025 |
| Karen Drexler | Director | 23,400 | 0.12% | Jun 5, 2026 |
| Karen Prange | Director | 29,334 | 0.16% | Jun 5, 2026 |
| D. Keith Grossman | Director | 37,430 | 0.20% | Jun 5, 2026 |
| Patrick T. Hackett | Director | 230,838 | 1.23% | Jun 5, 2026 |
| Brent D. Lang | Director | 45,184 | 0.24% | Jun 5, 2026 |
| Kevin C. Oboyle | Director | 34,785 | 0.19% | Jun 5, 2026 |
| Andrea Lynn Saia | Director | 12,175 | 0.06% | Jun 4, 2025 |
| Braden Michael Leonard | 10% owner | 2,764,610 | 14.71% | Oct 5, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Braden Michael Leonard 10% owner | Oct 2, 2026 | Buy | +16,575 | $3.88 | $64.24K | 2,764,610 |
| Braden Michael Leonard 10% owner | Oct 1, 2026 | Buy | +228,334 | $3.53 | $806.02K | 2,748,035 |
| John L. Brottem General Counsel | Aug 17, 2026 | Sale | −2,632 | $4.39 | $11.55K | 87,475 |
| Renee Gaeta Chief Financial Officer | Aug 17, 2026 | Sale | −4,543 | $4.39 | $19.94K | 180,840 |
| Leslie Trigg Chair and CEO, Director | Aug 17, 2026 | Sale | −3,437 | $4.39 | $15.09K | 194,597 |
| John L. Brottem General Counsel | Jun 26, 2026 | Award | +59,830 | – | – | 90,107 |
| Renee Gaeta Chief Financial Officer | Jun 26, 2026 | Award | +71,630 | – | – | 185,383 |
| Leslie Trigg Chair and CEO, Director | Jun 26, 2026 | Award | +99,160 | – | – | 198,034 |
| D. Keith Grossman Director | Jun 4, 2026 | Award | +10,667 | – | – | 24,585 |
| Karen Prange Director | Jun 4, 2026 | Award | +10,667 | – | – | 29,334 |
| Karen Drexler Director | Jun 4, 2026 | Award | +10,667 | – | – | 21,317 |
| Kevin C. Oboyle Director | Jun 4, 2026 | Award | +10,667 | – | – | 34,785 |
| Patrick T. Hackett Director | Jun 4, 2026 | Award | +10,667 | – | – | 105,839 |
| Brent D. Lang Director | Jun 4, 2026 | Award | +10,667 | – | – | 28,518 |
| Renee Gaeta Chief Financial Officer | Jun 3, 2026 | Sale | −17,672 | $4.94 | $87.30K | 113,753 |
| Leslie Trigg Chair and CEO, Director | May 15, 2026 | Sale | −3,445 | $3.70 | $12.75K | 98,874 |
| Marc Nash EVP Operations R&D & Service | May 15, 2026 | Sale | −1,582 | $3.70 | $5.85K | 38,393 |
| John L. Brottem General Counsel | May 15, 2026 | Sale | −2,638 | $3.70 | $9.76K | 30,277 |
| Braden Michael Leonard 10% owner | May 15, 2026 | Option exercise | +323,000 | $5.00 | $1.62M | 2,519,701 |
| Braden Michael Leonard 10% owner | May 11, 2026 | Option exercise | +96,900 | $5.00 | $484.50K | 2,196,701 |
| Braden Michael Leonard 10% owner | May 8, 2026 | Option exercise | +197,600 | $5.00 | $988.00K | 2,099,801 |
| Derick A. Elliott EVP, Commercial | Apr 6, 2026 | Award | +96,000 | – | – | 96,000 |
| John L. Brottem General Counsel | Feb 17, 2026 | Sale | −2,842 | $3.35 | $9.52K | 32,935 |
| Marc Nash EVP Operations R&D & Service | Feb 17, 2026 | Sale | −1,817 | $3.35 | $6.09K | 39,988 |
| Leslie Trigg Chair and CEO, Director | Feb 17, 2026 | Sale | −3,361 | $3.35 | $11.26K | 102,342 |
| Marc Nash EVP Operations R&D & Service | Jan 21, 2026 | Sale | −980 | $4.98 | $4.88K | 41,805 |
| Leslie Trigg Chair and CEO, Director | Jan 21, 2026 | Sale | −2,120 | $5.05 | $10.71K | 105,703 |
| John L. Brottem General Counsel | Jan 21, 2026 | Sale | −1,180 | $5.01 | $5.91K | 35,777 |
| Marc Nash EVP Operations R&D & Service | Jan 20, 2026 | Sale | −5,375 | $5.12 | $27.52K | 42,785 |
| Leslie Trigg Chair and CEO, Director | Jan 20, 2026 | Sale | −11,794 | $5.12 | $60.39K | 107,823 |
| John L. Brottem General Counsel | Jan 20, 2026 | Sale | −9,314 | $5.12 | $47.69K | 36,957 |
| Karen Prange Director | Jan 9, 2026 | Award | +18,667 | – | – | 18,667 |
| John L. Brottem General Counsel | Jan 7, 2026 | Sale | −224 | $4.27 | $956 | 46,271 |
| Leslie Trigg Chair and CEO, Director | Jan 7, 2026 | Sale | −1,795 | $4.27 | $7.66K | 119,617 |
| Marc Nash EVP Operations R&D & Service | Jan 7, 2026 | Sale | −108 | $4.27 | $461 | 48,160 |
| Karen Drexler Director | Dec 1, 2025 | Sale | −1,548 | $4.37 | $6.76K | 10,650 |
| Marc Nash EVP Operations R&D & Service | Nov 17, 2025 | Sale | −247 | $4.60 | $1.14K | 48,268 |
| John L. Brottem General Counsel | Nov 17, 2025 | Sale | −388 | $4.60 | $1.78K | 46,495 |
| Leslie Trigg Chair and CEO, Director | Nov 17, 2025 | Sale | −916 | $4.60 | $4.21K | 121,412 |
| Marc Nash EVP, R&D, Operations and Serv. | Aug 25, 2025 | Award | +5,617 | – | – | 48,515 |
| John L. Brottem General Counsel | Aug 15, 2025 | Sale | −383 | $12.88 | $4.93K | 46,883 |
| Leslie Trigg Chair and CEO, Director | Aug 15, 2025 | Sale | −904 | $12.88 | $11.64K | 122,328 |
| Marc Nash SVP Operations and R&D | Aug 15, 2025 | Sale | −243 | $12.88 | $3.13K | 42,898 |
| Renee Gaeta Chief Financial Officer | Jun 10, 2025 | Award | +131,425 | – | – | 131,425 |
| John L. Brottem General Counsel | Jun 10, 2025 | Award | +35,993 | – | – | 47,266 |
| Leslie Trigg Chair and CEO, Director | Jun 10, 2025 | Award | +65,103 | – | – | 123,232 |
| Marc Nash SVP Operations and R&D | Jun 10, 2025 | Award | +29,676 | – | – | 43,141 |
| D. Keith Grossman Director | Jun 2, 2025 | Award | +8,983 | – | – | 13,918 |
| Karen Drexler Director | Jun 2, 2025 | Award | +8,983 | – | – | 12,198 |
| Kevin C. Oboyle Director | Jun 2, 2025 | Award | +8,983 | – | – | 24,118 |
| Brent D. Lang Director | Jun 2, 2025 | Award | +8,983 | – | – | 17,851 |
| Patrick T. Hackett Director | Jun 2, 2025 | Award | +8,983 | – | – | 95,172 |
| Andrea Lynn Saia Director | Jun 2, 2025 | Award | +8,983 | – | – | 12,175 |
| Leslie Trigg Chair and CEO, Director | May 15, 2025 | Sale | −935 | $17.80 | $16.64K | 58,129 |
| Nabeel Ahmed Chief Financial Officer | May 15, 2025 | Sale | −584 | $17.81 | $10.40K | 16,096 |
| Marc Nash SVP Operations and R&D | May 15, 2025 | Sale | −252 | $17.82 | $4.49K | 13,465 |
| John L. Brottem General Counsel | May 15, 2025 | Sale | −396 | $17.82 | $7.06K | 11,273 |
| Kevin C. Oboyle Director | May 14, 2025 | Award | +15,135 | – | – | 15,135 |
| Karen Drexler Director | Mar 10, 2025 | Option exercise | +31,250 | – | – | 31,250 |
| Patrick T. Hackett Director | Mar 10, 2025 | Option exercise | +1,250,000 | – | – | 1,292,849 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
6.66%
1M shares short
Days to cover
8.6
At 0M shares a day
Change since last report
-12.8%
From 1M shares
Short volume, 20 days
40.4%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Outset Medical's stock actually held short. Settlement fails (shares not delivered on time) peaked at 1,183 shares on Sep 9, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Renee Gaeta Officer | Aug 14, 2026 | 4,422 | $19.94K | Aug 17, 2026 | Settlement of Vested Restricted Stock Units |
| John L. Brottem Officer | Aug 14, 2026 | 2,562 | $11.55K | Aug 17, 2026 | Settlement of Vested Restricted Stock Units |
| Leslie Trigg Officer | Aug 14, 2026 | 3,344 | $15.08K | Aug 17, 2026 | Settlement of Vested Restricted Stock Units |
| Renee Gaeta Officer | Jun 3, 2026 | 17,672 | $87.38K | Jun 3, 2026 | Settlement of Vested Restricted Stock Units |
| Leslie Trigg Officer | May 15, 2026 | 3,445 | $12.75K | May 15, 2026 | Settlement of Vested Restricted Stock Units |
| Marc Nash Officer | May 15, 2026 | 1,582 | $5.85K | May 15, 2026 | Settlement of Vested Restricted Stock Units |
| John L. Brottem Officer | May 15, 2026 | 2,638 | $9.76K | May 15, 2026 | Settlement of Vested Restricted Stock Units |
| John L. Brottem Officer | Feb 17, 2026 | 2,842 | $9.52K | Feb 17, 2026 | Settlement of Vested Restricted Stock Units |
| Leslie Trigg Officer | Feb 17, 2026 | 3,361 | $11.26K | Feb 17, 2026 | Settlement of Vested Restricted Stock Units |
| Marc Nash Officer | Jan 21, 2026 | 980 | $4.88K | Jan 21, 2026 | Settlement of Vested Restricted Stock Units |
| Leslie Trigg Officer | Jan 21, 2026 | 2,120 | $10.70K | Jan 21, 2026 | Settlement of Vested Restricted Stock Units |
| John L. Brottem Officer | Jan 21, 2026 | 1,180 | $5.91K | Jan 21, 2026 | Settlement of Vested Restricted Stock Units |
| John L. Brottem Officer | Jan 20, 2026 | 9,314 | $47.68K | Jan 20, 2026 | Settlement of Vested Restricted Stock Units |
| Leslie Trigg Officer | Jan 20, 2026 | 11,794 | $60.39K | Jan 20, 2026 | Settlement of Vested Restricted Stock Units |
| Marc Nash Officer | Jan 20, 2026 | 5,375 | $27.52K | Jan 20, 2026 | Settlement of Vested Restricted Stock Units |
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