Management Change/Compensation Form 8 K

Director Resignations

On October 30, 2024, Karin Rådström and Kristin Slanina resigned as members of Ouster, Inc.'s (the "Company") Board of Directors (the "Board"), effective November 4, 2024. Ms. Slanina is expected to serve as an advisor to the Company following her resignation and Ms. Rådström has been appointed as a member of the Company's Advisory Board. The Board thanked each of Ms. Slanina and Ms. Rådström for their service as Board members.

Director Appointments

On November 4, 2024, Christina Correia and Stephen Skaggs were elected to the Board, effective as of November 4, 2024. Ms. Correia has been appointed to serve on the Board's Audit Committee and Mr. Skaggs has been appointed to serve the Board's Compensation Committee. Biographical information regarding Ms. Correia and Mr. Skaggs can be found on the Company's investor relations website at https://investors.ouster.com/governance/board-of-directors/default.aspx. The information on the Company's investor relations website is not deemed incorporated by reference herein.

Ms. Correia and Mr. Skaggs will be compensated consistent with the Company's Third Amended and Restated Non-EmployeeDirector Compensation Program as described in the Company's definitive proxy statement filed with the Securities and Exchange Commission on April 25, 2024. The Company expects to enter into the Company's standard form of indemnification agreement with each of Ms. Correia and Mr. Skaggs.

Adoption of Severance Plan

On November 4, 2024, the Board also adopted and approved the Ouster, Inc. Executive Change in Control and Severance Plan (the "Severance Plan"), effective November 4, 2024, pursuant to which certain of the Company's executives, including named executive officers Angus Pacala, the Company's Chief Executive Officer; Mark Weinswig, the Company's Chief Financial Officer; and Darien Spencer, the Company's Chief Operating Officer, may elect to participate and become eligible to receive certain benefits in the event of certain qualifying terminations.

The Severance Plan provides for severance payments and benefits in the event the executive's employment with the Company is terminated by the Company without cause or the executive resigns for good reason, as follows: (i) of the continued payment of the executive's base salary for a period of six months (12 months with respect to the Company's Chief Executive Officer), (ii) a pro-ratedannual bonus payable based on actual performance at the same time annual bonuses are paid to other executives and (iii) up to six months' continued health care coverage (12 months with respect to the Company's Chief Executive Officer).

In lieu of the foregoing severance payments and benefits, in the event of a qualifying termination by the Company within the 3-monthperiod preceding and the 12-monthperiod following a change in control of the Company, each executive will receive the following: (i) a cash severance payment equal to 100% (200% with respect to the Company's Chief Executive Officer) of the executive's base salary and target annual bonus; (ii) a pro-ratedannual bonus based on target performance for the year of termination; (iii) up to 12 months' COBRA coverage (up to 24 months' COBRA coverage with respect to the Company's Chief Executive Officer); and (iv) full accelerated vesting of time-vesting Company equity awards and accelerated vesting of performance-vesting Company equity awards at the "target" level achievement of applicable performance metrics.

As a condition to participation in the Severance Plan, executives are required to execute a participation agreement (the "Participation Agreement"), which supersedes any pre-existingseverance protection.

The foregoing descriptions of the Severance Plan and Participation Agreement do not purport to be complete and are qualified in their entirety by reference to the full text of the Severance Plan and Participation Agreement, copies of which are attached as Exhibits 10.1 and 10.2 to this Current Report on Form 8-Kand incorporated herein by reference.