[Form 4] Ouster, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Director Ted L. Tewksbury III of Ouster received a grant of 13,558 restricted stock units (RSUs) on June 18, 2025. Following this transaction, Tewksbury owns a total of 127,054 shares directly.

Key details of the RSU grant:

• The RSUs will vest in quarterly installments through June 18, 2026, or until the next annual stockholder meeting, whichever comes first
• Each RSU represents the right to receive one share of common stock
• The grant was made at $0 cost to the director
• Vesting is contingent on Tewksbury's continued service with the company

This Form 4 filing was signed by Megan Chung as attorney-in-fact for Tewksbury on June 20, 2025, within the required reporting timeline for insider transactions.

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^*

Tewksbury Ted L III

(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	127,054	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 Ted L. Tewksbury III	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 shares did Director Ted Tewksbury acquire on June 18, 2025?

Director Ted Tewksbury III acquired 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 Ted Tewksbury's OUST RSU grant?

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

How many OUST shares does Ted Tewksbury own after the June 18, 2025 transaction?

Following the reported RSU grant transaction, Ted Tewksbury III directly owns 127,054 shares of Ouster Inc. (OUST) common stock.

What was the purchase price of OUST RSUs granted to Ted Tewksbury?

The RSUs were granted to Ted Tewksbury at $0 cost, as they represent equity compensation for his role as a Director of Ouster Inc. (OUST).

Who filed the Form 4 for OUST Director Ted Tewksbury?

The Form 4 was filed by Megan Chung, acting as Attorney-in-Fact for Ted L. Tewksbury III, and was signed on June 20, 2025.