<div id="readability-page-1"><div>Young John Alexander Chief Financial Officer of Ambarella Inc [AMBA] filed a Form 4 on December 19, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:<div><table><tbody><tr><th>Date</th><th>Transaction</th><th>Shares</th><th>Price</th><th>Value</th></tr><tr><td>12/17/25</td><td>Surrender(1)</td><td>2,579</td><td>$71.82</td><td>$185,224</td></tr><tr><td>12/18/25</td><td>Sale</td><td>3,791</td><td>$72.96</td><td>$276,591</td></tr></tbody></table></div>Ending Holdings: 102,738 - Direct<ul><li>(1)</li><li>Surrender of shares back to company to pay option exercise cost and/or resulting tax liability.</li></ul>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.Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data. </div></div>

AMBA

Ambarella Inc's CFO, Young John Alexander, sold 3,791 shares worth $276,591 on December 18, 2025, as disclosed in a Form 4 filing with the SEC. Additionally, 2,579 shares were surrendered to cover option exercise costs and tax liabilities. The CFO's ending holdings are 102,738 shares.

CFO Young Sells 3,791 ($276.6K) Of Ambarella Inc [AMBA]