Outset Medical (OM) CEO tax-withholding sale and RSU vesting

Rhea-AI Filing Summary

Outset Medical, Inc. (OM) reported an insider transaction by its Chair and CEO, Leslie Trigg. On 11/17/2025, Trigg sold 916 shares of common stock at $4.60 per share in a transaction coded “S.” The company notes this was a required sale to cover tax withholding tied to the vesting of 1,770 shares of common stock underlying restricted stock units granted on January 6, 2023 and January 12, 2024, and it did not represent a discretionary trade. After the transaction, Trigg beneficially owned 121,412 shares directly and additional shares indirectly through the Trigg 2002 Rev Trust and the Trigg Family Trust.

Insider Trade Summary

Net Seller: 916 shares

Net Sell 3 txns

Insider Trigg Leslie

Role Chair and CEO

Sold 916 shs ($4K)

Type	Security	Shares	Price	Value
Sale	Common Stock	916	$4.60	$4K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 121,412 shares (Direct); Common Stock — 41,666 shares (Indirect, Trigg 2002 Rev Trust); Common Stock — 584 shares (Indirect, Trigg Family Trust)

Footnotes (1)

1. F1. Required number of shares sold by the reporting person to cover tax withholding obligations in connection with the vesting of an aggregate of 1,770 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.

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Form 4 Insider Transactions: What Each Field Means →

Accepted by SEC EDGAR 11/18/2025 - 04:37 PM Learn about SEC filing dates

FAQ

What insider transaction did Outset Medical (OM) report on this Form 4?

Outset Medical reported that its Chair and CEO, Leslie Trigg, sold 916 shares of common stock on 11/17/2025 in a transaction coded “S.”

Why did Leslie Trigg sell 916 shares of Outset Medical (OM) stock?

The 916 shares were sold to cover tax withholding obligations related to the vesting of 1,770 RSU-based shares, in a “sell to cover” transaction described as non-discretionary.

At what price were the Outset Medical (OM) shares sold by the CEO?

The 916 shares of Outset Medical common stock were sold at a price of $4.60 per share.

How many Outset Medical (OM) shares does Leslie Trigg own after this transaction?

Following the transaction, Leslie Trigg beneficially owned 121,412 shares directly, plus additional shares held indirectly through the Trigg 2002 Rev Trust (41,666 shares) and the Trigg Family Trust (584 shares).

What is Leslie Trigg’s role at Outset Medical (OM)?

Leslie Trigg is reported as both a Director and an Officer of Outset Medical, serving as the company’s Chair and CEO.

Was the Outset Medical (OM) CEO’s stock sale part of a trading plan?

The form allows indication of trades under a Rule 10b5-1(c) trading plan, but the excerpt only specifies that the sale was a “sell to cover” for tax withholding, not a discretionary trade.

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

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 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)
11/17/2025

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	11/17/2025		S		916(1)	D	$4.6	121,412	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 1,770 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	11/18/2025
	** 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.