Form 4 Filing for Ouster, Inc. - Insider Transaction

This Form 4 filing reports a transaction by insider Ted L. Tewksbury III on December 19, 2025. Mr. Tewksbury, a director at Ouster, Inc., sold 1,695 shares of Common Stock at a price of $21.47 per share. This sale was conducted under a Rule 10b5-1 trading plan established on August 12, 2025, and included shares sold for tax planning purposes. Following this transaction, Mr. Tewksbury directly owns 123,664 shares of Ouster, Inc. stock. The filing was signed on December 23, 2025, by Megan Chung as Attorney-in-Fact for Mr. Tewksbury.