Phillip Eyler - 08 Dec 2025 Form 4 Insider Report for Ouster, Inc. (OUST)

Role: Director
Signature: /s/ Megan Chung, as Attorney-in-Fact for Phillip Eyler
Issuer symbol: OUST
Transactions as of: 08 Dec 2025
Net transactions value: $0
Form type: 4
Filing time: 10 Dec 2025, 16:32:43 UTC
Previous filing: 12 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Eyler Phillip	Director	350 TREAT AVENUE, SAN FRANCISCO	/s/ Megan Chung, as Attorney-in-Fact for Phillip Eyler	10 Dec 2025	0001649301

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OUST	Common Stock	Award	$0	+11,683		$0.000000	11,683	08 Dec 2025	Direct	F1
transaction	OUST	Common Stock	Award	$0	+3,975	+34%	$0.000000	15,658	08 Dec 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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 as to 1/12 of the total number of RSUs on each of the first twelve quarterly anniversaries of the grant date, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs have no expiration date. The Reporting Person will settle all awards of common stock received, including vested RSUs, upon the earlier of a change in control or separation from service with the Company.
F2	Represents Company 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. The RSUs have no expiration date. The Reporting Person will settle all awards of common stock received, including vested RSUs, upon the earlier of a change in control or separation from service with the Company.

Content

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 as to 1/12 of the total number of RSUs on each of the first twelve quarterly anniversaries of the grant date, subject to the Reporting Person's continued service through the applicable vesting date. The RSUs have no expiration date. The Reporting Person will settle all awards of common stock received, including vested RSUs, upon the earlier of a change in control or separation from service with the Company.

Represents Company 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. The RSUs have no expiration date. The Reporting Person will settle all awards of common stock received, including vested RSUs, upon the earlier of a change in control or separation from service with the Company.