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Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Quarterly Report on Form 10-Q of Ouster, Inc. (the “Company”) for the period ended September 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
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|   | (1) | The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and | 
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|   | (2) | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. | 
 
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Date: November 13, 2023  | By: |  | /s/ Angus Pacala  | 
|   |   |   | Angus Pacala | 
|   |   |   | Co-Founder and Chief Executive Officer  (principal executive officer)  |