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Amplitude, Inc.

For the period ended Sep 30, 2025. Filed Nov 6, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 6, 2025

AMPL$16.70+3.7%Stored close · as of Nov 6, 2026

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Other Information

Item 5. Other Information.

Trading Arrangements of Section 16 Reporting Persons

On August 8, 2025, Anne Skates, spouse of Spenser Skates, our Chief Executive Officer and the Chair of our board of directors, adopted a Rule 10b5-1 trading plan that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of up to 1,010,000 shares of our Class A common stock until December 31, 2026.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.