<div id="readability-page-1"><div><p><span>Schultz Erica Director of Amplitude Inc [AMPL] filed a Form 4 on December 17, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:</span></p><div><table><tbody><tr><th><span>Date</span></th><th><span>Transaction</span></th><th><span>Shares</span></th><th><span>Price</span></th><th><span>Value</span></th></tr><tr><td><span>12/15/25</span></td><td><span>Exercise(1)</span></td><td><span>10,000</span></td><td><span>$4.19</span></td><td><span>$41,900</span></td></tr><tr><td><span>12/15/25</span></td><td><span>Planned Sale(2)</span></td><td><span>10,000</span></td><td><span>$10.88</span></td><td><span>$108,758</span></td></tr></tbody></table></div><p><span>Ending Holdings: 114,906 - Direct</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>Exercised 5.0 years before expiration date.</span></td></tr><tr><td><span>(2)</span></td><td><span>Executed pursuant to a prearranged trading plan (10b5-1).</span></td></tr></tbody></table></div><p><span>For a free trial, or to learn more about our insider trading analysis and data services, please visit http://www.washingtonservice.com or contact us at (301) 913-5100 or send an email to info@washingtonservice.com.</span></p><p><span>Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data.</span></p><span> </span></div></div>

AMPL

<p>Erica Schultz, Director of Amplitude Inc, sold 10,000 shares for $108,758 as part of a prearranged trading plan. The transaction was disclosed in a Form 4 filed with the SEC on December 17, 2025. Schultz exercised options for 10,000 shares at $4.19, valued at $41,900, and sold them at $10.88. Her ending holdings are 114,906 shares.</p>

Dir Schultz Sells 10,000 ($108.8K) Of Amplitude Inc [AMPL]