<div id="readability-page-1"><div><p><span>Sharan Sharat Chairman of the Board of ON24 Inc [ONTF] filed a Form 4 on December 18, 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>12/17/25</span></td><td><span>Exercise(1)</span></td><td><span>28,863</span></td><td><span>$1.70</span></td><td><span>$49,067</span></td></tr><tr><td><span>12/17/25</span></td><td><span>Planned Sale(2)</span></td><td><span>19,119</span></td><td><span>$5.82</span></td><td><span>$111,366</span></td></tr></tbody></table></div><p><span>Ending Holdings: 3,622,891 - Direct</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>Exercised 18 days 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>

ONTF

<p>Sharan Sharat, Chairman of ON24 Inc, sold 19,119 shares worth $111,366 on December 17, 2025, as disclosed in a Form 4 filing with the SEC. The sale was executed under a prearranged trading plan (10b5-1).</p>

Chmn Sharan Sells 19,119 ($111.4K) Of ON24 Inc [ONTF]