Changes in Beneficial Ownership · 4

Ouster, Inc.

OUSTNASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Oct 7, 2026Accepted Oct 7, 2026, 4:31 PM EDTFiling CIK 1816581Accession 0001193125-26-417009

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Structured filing — 4

ownership.xml

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Filing details

Report period: 2026-10-05
Issuer: Ouster, Inc.
Issuer CIK: 0001816581
Trading symbol: OUST

Reporting owner 1

Name: Heystee Susan
Reporting owner CIK: 0001334330
Relationship: Director
Address: 350 TREAT AVENUE, SAN FRANCISCO, CA, 94110

Non-derivative transactions

Non-derivative transactions · 1 reported row
Security	Transaction date	Code	Amount	A / D	Price (USD)	Owned after	Ownership
Common Stock	2026-10-05	A · Form 4	779^[F1]	A	44.12	41,257.7	D

Table key

A · Form 4: Acquisition by grant, award or otherwise under Rule 16b-3(d)
A: Acquired
D: Direct

Footnotes

F1: Represents shares of common stock received in lieu of cash fees pursuant to the Company's Third Amended and Restated Non-Employee Director Compensation Program.↩ 1

Remarks

Exhibit List - Exhibit 24 - Power of Attorney

Signature 1

Signed: /s/ Megan Chung, as Attorney-in-Fact for Susan Heystee
Date: 2026-10-07

Filed exhibits

EX-24 ↗oust-ex24.htm

Company context

Ouster (Nasdaq: OUST) is a leader in sensing and perception for Physical AI across industrial, robotics, automotive, and smart infrastructure. With a unified platform of high-performance digital lidar, cameras, AI compute, sensor fusion and perception software, and AI models, Ouster delivers solutions that improve quality of life in the physical world. Headquartered in San Francisco, CA, Ouster has a global presence serving thousands of customers with offices in the Americas, Europe, and Asia-Pacific. For more information about our products, visit www.ouster.com, contact our sales team, or connect with us on X or LinkedIn.

Current securities

OUSTNASDAQ · EQUITY · Current

Historical securities (8)

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