[Form 4] Ouster, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Ouster director Virginia Boulet received a grant of 13,558 restricted stock units (RSUs) on June 18, 2025. The RSUs were awarded at a price of $0 and will vest in quarterly installments through the earlier of June 18, 2026 or the company's next annual meeting of stockholders, subject to continued service.

Following this transaction, Boulet now beneficially owns 221,842 shares of Ouster common stock directly. The RSUs represent a contingent right to receive one share of common stock for each unit granted.

• Transaction Type: RSU Grant (Form 4 Code: A)
• Filing Status: Individual filing by director
• Vesting Schedule: Quarterly through June 2026 or next annual meeting
• Ownership: Direct ownership

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

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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^*

BOULET VIRGINIA

(Last) (First) (Middle)

350 TREAT AVENUE

(Street)

SAN FRANCISCO CA 94110

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Ouster, Inc. [ OUST ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
06/18/2025

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	06/18/2025		A		13,558(1)	A	$0	221,842	D

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. Represents Ouster, Inc. (the "Company") restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Company's common stock. The RSUs vest in quarterly installments through the earlier of June 18, 2026 or the Company's next annual meeting of stockholders, subject to the Reporting Person's continued service through the applicable vesting date.

	/s/ Megan Chung, as Attorney-in-Fact for Virginia Boulet	06/20/2025
	** 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

How many OUST restricted stock units (RSUs) did Virginia Boulet receive on June 18, 2025?

Virginia Boulet received 13,558 restricted stock units (RSUs) of Ouster, Inc. (OUST) on June 18, 2025. Each RSU represents a contingent right to receive one share of the company's common stock.

What is the vesting schedule for Virginia Boulet's OUST RSUs granted in June 2025?

The RSUs vest in quarterly installments through the earlier of June 18, 2026 or Ouster's next annual meeting of stockholders, subject to Virginia Boulet's continued service as a director through the applicable vesting dates.

How many shares of OUST common stock does Virginia Boulet own after the June 2025 RSU grant?

Following the RSU grant transaction, Virginia Boulet beneficially owns 221,842 shares of Ouster (OUST) common stock directly.

What is Virginia Boulet's role at OUST according to the Form 4 filing?

According to the Form 4 filing, Virginia Boulet serves as a Director of Ouster, Inc. (OUST), as indicated by the 'X' marked in the Director box under the Relationship of Reporting Person(s) to Issuer section.

What was the purchase price of the OUST RSUs granted to Virginia Boulet?

The RSUs were granted to Virginia Boulet at a price of $0, as indicated in the 'Price' column of Table I in the Form 4 filing.