Megan Chung - 16 Jan 2026 Form 4 Insider Report for Ouster, Inc. (OUST)

Role: General Counsel and Secretary
Signature: /s/ Megan Chung
Issuer symbol: OUST
Transactions as of: 16 Jan 2026
Net transactions value: -$159,000
Form type: 4
Filing time: 21 Jan 2026, 19:11:25 UTC
Previous filing: 16 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Chung Megan	General Counsel and Secretary	350 TREAT AVENUE, SAN FRANCISCO	/s/ Megan Chung	21 Jan 2026	0001966411

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OUST	Common Stock	Sale	$159,000	-5,837	-3.1%	$27.24	183,141	16 Jan 2026	Direct	F1

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

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id	Content
F1	Reflects sale transactions made primarily for tax planning purposes.

Remarks:

All sale transactions reported herein were made pursuant to a Rule 10b5-1 trading plan dated June 4, 2025.