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

Rhea-AI Filing Summary

Insider Form 4 summary: Leslie Trigg, Chair and CEO of Outset Medical, sold 904 shares of common stock on 08/15/2025 at $12.88 per share to satisfy tax withholding related to the vesting of 1,769 restricted stock units granted on January 6, 2023 and January 12, 2024. The sale is described as a "sell to cover" to meet withholding obligations and not a discretionary trade. After the transaction, Trigg beneficially owns 122,328 shares directly and 42,250 indirectly (41,666 via the Trigg 2002 Rev Trust and 584 via the Trigg Family Trust).

Positive

• Transaction was a sell-to-cover strictly to satisfy tax withholding obligations, not a discretionary sale
• Clear post-transaction ownership disclosed: 122,328 shares direct and 41,666 and 584 shares held indirectly via two trusts
• Filing provides explanatory note linking the sale to vesting of 1,769 RSUs granted on January 6, 2023 and January 12, 2024

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine sell-to-cover tax withholding by CEO; not indicative of discretionary liquidation and has limited market impact.

The Form 4 discloses a small disposition of 904 shares at $12.88 to satisfy tax withholding on 1,769 vested RSUs. For a company-level investor assessment, this is a routine administrative transaction associated with equity compensation. The filing lists substantial residual ownership by the reporting person, including 122,328 shares direct and 42,250 shares indirect, which suggests continued alignment with shareholders. No new options, derivative activity, or large unplanned disposals are reported, so the disclosure is neutral for valuation models.

Corporate Governance Expert

TL;DR: Compliance-focused transaction; documentation notes it was executed to meet withholding obligations, aligning with standard governance practices.

The explanatory note clarifies the sale was to cover tax withholding on vested RSUs rather than an open-market decision to reduce exposure. The Form 4 properly reports the transaction date, price, and post-transaction beneficial ownership across direct and trust holdings. This transparency meets Section 16 disclosure requirements and signals routine equity compensation administration rather than governance concerns such as sudden insider departures or opportunistic selling.

SEC Form 4

FORM 4

UNITED 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

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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 CA 95134

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Outset Medical, Inc. [ OM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chair and CEO

3. Date of Earliest Transaction (Month/Day/Year)
08/15/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/15/2025		S		904(1)	D	$12.88	122,328	D
Common Stock								41,666	I	Trigg 2002 Rev Trust
Common Stock								584	I	Trigg 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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount 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 1,769 shares of Common Stock underlying RSUs granted to the reporting person on January 6, 2023, and January 12, 2024. 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.

	By: John L Brottem For: Leslie Trigg	08/18/2025
	** Signature of Reporting Person	Date
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.

FAQ

What did Leslie Trigg report on the Form 4 for Outset Medical (OM)?

The Form 4 reports a sale of 904 shares of common stock on 08/15/2025 at $12.88 per share to cover tax withholding related to vested RSUs.

Why were shares sold by the reporting person on this Form 4?

The sale was a sell-to-cover transaction executed to satisfy tax withholding obligations from the vesting of an aggregate of 1,769 RSU shares.

How many shares does Leslie Trigg beneficially own after the reported transaction?

Following the transaction, the reporting person beneficially owns 122,328 shares directly and 41,666 plus 584 shares indirectly via the Trigg 2002 Rev Trust and Trigg Family Trust respectively.

Does the Form 4 indicate a discretionary sale or other trading plan?

No. The Form 4 states the sale was to cover tax withholding for vested RSUs and explicitly notes it "does not represent a discretionary trade" by the reporting person.

Which RSU grant dates are associated with the sell-to-cover transaction?

The withholding relates to RSUs granted on January 6, 2023 and January 12, 2024.