• Amplitude CEO and President Spenser Skates reported sales of 962 Class A Common Stock shares held by his spouse on November 4–5, 2026.
• The November 4 sale comprised 901 shares at $17.4629 per share.
• November 5 sales totaled 29 shares at $17.519 per share and 32 shares at $18.67 per share.
• His spouse converted 962 Class B Common Stock shares into Class A Common Stock across the two days.
• Following the transactions, Skates held 5,342,146 Class B Common Stock shares directly, with 192,108 held indirectly through his spouse.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Amplitude Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001610717-26-000447), on November 06, 2026, and is solely responsible for the information contained therein.