Outset Medical, Inc. (OM) Insider Ownership

Historic Insider Ownership Trends

Outset Medical's three largest insider shareholders as of March 23, 2026 are Pincus X, L.P. Warburg (TenPercentOwner, 815.39K shares), Pincus Llc Warburg (TenPercentOwner, 815.39K shares), Leslie Trigg (Chair And Ceo, 625.00K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Pincus Llc Warburg 0 815,394 15 Apr, 2021
Pincus X, L.P. Warburg 0 815,394 15 Apr, 2021
Leslie Trigg Chair And Ceo 0 625,000 11 Mar, 2025
Steven S. Williamson Chief Commercial Officer 320,347 0 16 Feb, 2024
Jean-Olivier Racine Chief Technology Officer 265,325 0 10 May, 2024
Brent D. Lang 0 250,000 11 Mar, 2025
Renee Gaeta Chief Financial Officer 131,425 0 11 Jun, 2025
Martin Vazquez Chief Operating Officer 103,112 0 02 Mar, 2023
Leslie Trigg Chair And Ceo 102,342 0 19 Feb, 2026
James F. Hinrichs 80,349 0 29 May, 2024
Stacey L. Porter Chief People Officer 61,448 0 17 Jan, 2024
Dale E Jones 45,918 0 29 May, 2024
Marc Nash Evp Operations Rd Service 39,988 0 19 Feb, 2026
John L. Brottem General Counsel 32,935 0 19 Feb, 2026
Karen Drexler 0 31,250 11 Mar, 2025
Catherine M. Szyman 24,596 0 31 May, 2023
Karen Prange 18,667 0 12 Jan, 2026
Brent D. Lang 17,851 0 04 Jun, 2025
Nabeel Ahmed Chief Financial Officer 16,096 0 16 May, 2025
Rebecca Chambers Chief Financial Officer 13,597 0 25 Jun, 2021
Andrea Lynn Saia 12,175 0 04 Jun, 2025
Karen Drexler 10,650 0 02 Dec, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
17 Feb, 2026 Leslie Trigg Common Stock D 3,361 $3.35 102,342 D S
17 Feb, 2026 John L. Brottem Common Stock D 2,842 $3.35 32,935 D S
17 Feb, 2026 Marc Nash Common Stock D 1,817 $3.35 39,988 D S
20 Jan, 2026 Leslie Trigg Common Stock D 11,794 $5.12 107,823 D S
20 Jan, 2026 John L. Brottem Common Stock D 9,314 $5.12 36,957 D S
20 Jan, 2026 Marc Nash Common Stock D 5,375 $5.12 42,785 D S
21 Jan, 2026 Marc Nash Common Stock D 980 $4.98 41,805 D S
21 Jan, 2026 John L. Brottem Common Stock D 1,180 $5.01 35,777 D S
21 Jan, 2026 Leslie Trigg Common Stock D 2,120 $5.05 105,703 D S
09 Jan, 2026 Karen Prange Common Stock A 18,667 $0.00 18,667 D A
07 Jan, 2026 John L. Brottem Common Stock D 224 $4.27 46,271 D S
07 Jan, 2026 Marc Nash Common Stock D 108 $4.27 48,160 D S
07 Jan, 2026 Leslie Trigg Common Stock D 1,795 $4.27 119,617 D S
01 Dec, 2025 Karen Drexler Common Stock D 1,548 $4.37 10,650 D S
17 Nov, 2025 Marc Nash Common Stock D 247 $4.60 48,268 D S
17 Nov, 2025 John L. Brottem Common Stock D 388 $4.60 46,495 D S
17 Nov, 2025 Leslie Trigg Common Stock D 916 $4.60 121,412 D S
25 Aug, 2025 Marc Nash Common Stock A 5,617 $0.00 48,515 D A
15 Aug, 2025 Leslie Trigg Common Stock D 904 $12.88 122,328 D S
15 Aug, 2025 John L. Brottem Common Stock D 383 $12.88 46,883 D S