<div id="readability-page-1"><div><p><span>Gallagher Kathleen P Officer of Avidity Biosciences Inc [RNA] filed a Form 4 on December 19, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:</span></p><div><table><tbody><tr><td><span>Date</span></td><td><span>12/17/25</span></td></tr><tr><td><span>Transaction</span></td><td><span>Surrender(1)</span></td></tr><tr><td><span>Shares</span></td><td><span>41,366</span></td></tr><tr><td><span>Price</span></td><td><span>$71.87</span></td></tr><tr><td><span>Value</span></td><td><span>$2,972,974</span></td></tr></tbody></table></div><p><span>Ending Holdings: 80,838 - Direct</span></p><ul><li><span>(1)</span></li><li><span>Surrender of shares back to company to pay option exercise cost and/or resulting tax liability.</span></li></ul><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>

<p>Officer Gallagher of Avidity Biosciences Inc surrendered 41,366 shares valued at $2,972,974 to cover option exercise costs and tax liabilities. The transaction was filed with the SEC on December 19, 2025. Gallagher's ending holdings are 80,838 shares directly. The Washington Service offers insider trading analysis and data services.</p>

Officer Gallagher Surrenders 41,366 Of Avidity Biosciences Inc [RNA]