<div id="readability-page-1"><div><p><span>Tachibana Aaron Chief Operating Officer of Personalis Inc [PSNL] filed a Form 4 on November 28, 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>11/25/25</span></td><td><span>Planned Exercise(1)(2)</span></td><td><span>103,668</span></td><td><span>$9.16</span></td><td><span>$949,599</span></td></tr><tr><td><span>11/25/25</span></td><td><span>Planned Sale(2)</span></td><td><span>103,668</span></td><td><span>$10.78</span></td><td><span>$1,117,541</span></td></tr></tbody></table></div><p><span>Ending Holdings: 164,458 - Direct</span></p><div><table><tbody><tr><td><span>(1)</span></td><td><span>Exercised 3.3 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>

PSNL

<p>Tachibana Aaron, COO of Personalis Inc [PSNL], sold 103,668 shares worth $1.1M on November 25, 2025, as disclosed in a Form 4 filed with the SEC. The sale was executed under a prearranged trading plan (10b5-1).</p>

COO Tachibana Sells 103,668 ($1.1M) Of Personalis Inc [PSNL]