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[Form 4] Outset Medical, Inc. Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Outset Medical, Inc. director and Chair and CEO Leslie Trigg reported an open-market sale of 3,445 shares of Common Stock at $3.70 per share. According to the footnotes, this was a required sale to cover tax withholding obligations tied to the vesting of 9,319 RSU-based shares and did not represent a discretionary trade.

After the sale, Trigg held 98,874 Common Stock shares directly, along with 584 shares held indirectly through the Trigg Family Trust and 41,666 shares held indirectly through the Trigg 2002 Rev Trust, all as of May 15, 2026.

Positive

  • None.

Negative

  • None.
Insider Trigg Leslie
Role Chair and CEO
Sold 3,445 shs ($13K)
Type Security Shares Price Value
Sale Common Stock 3,445 $3.70 $13K
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 98,874 shares (Direct, null); Common Stock — 41,666 shares (Indirect, Trigg 2002 Rev Trust)
Footnotes (1)
  1. Required number of shares sold by the reporting person to cover tax withholding obligations in connection with the vesting of an aggregate of 9,319 shares of Common Stock underlying RSUs granted to the reporting person on January 12, 2024 and June 10, 2025. This sale was made to satisfy tax withholding obligations through a "sell to cover" transaction and does not represent a discretionary trade by the reporting person. This balance reflects a correction to the number of shares of Common Stock sold by the reporting person to satisfy tax withholding obligations as previously reported on a Form 4 filed on February 19, 2026. Due to an administrative error, the prior Form 4 reported the sale of 3,361 shares instead of the correct number, 3,384 shares.
Shares sold 3,445 shares Open-market sale on May 15, 2026
Sale price $3.70 per share Price for Common Stock sold
Direct holdings after transaction 98,874 shares Common Stock held directly after sale
Trigg Family Trust holdings 584 shares Indirect ownership via Trigg Family Trust
Trigg 2002 Rev Trust holdings 41,666 shares Indirect ownership via Trigg 2002 Rev Trust
RSU-related vested shares 9,319 shares Common Stock underlying RSUs vesting tied to tax sale
RSUs financial
"shares of Common Stock underlying RSUs granted to the reporting person"
RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.
sell to cover financial
"sale was made to satisfy tax withholding obligations through a "sell to cover" transaction"
Sell to cover is when a person who receives company stock through options or awards sells just enough shares immediately to pay required taxes, exercise costs, or fees, keeping the rest. Think of it like cashing part of a bonus to cover the tax bill so you can keep the remainder. For investors, it can create predictable small selling pressure and slightly change the number of shares actually held by insiders without increasing long‑term dilution.
tax withholding obligations financial
"Required number of shares sold by the reporting person to cover tax withholding obligations"
indirect ownership financial
"direct_or_indirect: "I", nature_of_ownership: "Trigg Family Trust""
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Trigg Leslie
(Last)(First)(Middle)
3052 ORCHARD DRIVE
(Street)
SAN JOSE CALIFORNIA 95134
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Outset Medical, Inc. [ OM ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chair and CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock05/15/2026S3,445(1)D$3.798,874(2)D
Common Stock41,666ITrigg 2002 Rev Trust
Common Stock584ITrigg Family Trust
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Required number of shares sold by the reporting person to cover tax withholding obligations in connection with the vesting of an aggregate of 9,319 shares of Common Stock underlying RSUs granted to the reporting person on January 12, 2024 and June 10, 2025. This sale was made to satisfy tax withholding obligations through a "sell to cover" transaction and does not represent a discretionary trade by the reporting person.
2. This balance reflects a correction to the number of shares of Common Stock sold by the reporting person to satisfy tax withholding obligations as previously reported on a Form 4 filed on February 19, 2026. Due to an administrative error, the prior Form 4 reported the sale of 3,361 shares instead of the correct number, 3,384 shares.
John Brottem For: Leslie Trigg05/19/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Outset Medical (OM) report for Leslie Trigg?

Outset Medical reported that Chair and CEO Leslie Trigg sold 3,445 shares of Common Stock at $3.70 per share. The filing states this was to cover tax withholding tied to recently vested RSU shares, rather than a discretionary trade.

Why did Leslie Trigg sell 3,445 Outset Medical (OM) shares?

The filing explains the 3,445-share sale was required to cover tax withholding obligations related to the vesting of 9,319 RSU-based shares. It was executed as a “sell to cover” transaction and is described as non-discretionary.

How many Outset Medical (OM) shares does Leslie Trigg hold after this Form 4?

Following the reported sale, Leslie Trigg directly holds 98,874 shares of Outset Medical Common Stock. In addition, there are 584 shares held through the Trigg Family Trust and 41,666 shares held through the Trigg 2002 Rev Trust.

What RSU vesting is referenced in Leslie Trigg’s Outset Medical (OM) Form 4?

The footnotes state the tax-related sale was connected to vesting of an aggregate 9,319 shares of Common Stock from RSUs granted on January 12, 2024 and June 10, 2025. These RSUs triggered tax obligations satisfied via the sell-to-cover transaction.

Does the Outset Medical (OM) Form 4 indicate a discretionary sale by Leslie Trigg?

The Form 4 explicitly notes the transaction does not represent a discretionary trade by Leslie Trigg. It describes the sale as required to satisfy tax withholding obligations through a “sell to cover” linked to RSU vesting.

What indirect Outset Medical (OM) holdings are reported for Leslie Trigg?

The filing shows indirect ownership of 584 shares of Common Stock held by the Trigg Family Trust and 41,666 shares held by the Trigg 2002 Rev Trust. Both positions are reported as of May 15, 2026.