<div id="readability-page-1"><div><p><span>Maleh Paul A Chairman of the Board of CRA International Inc [CRAI] filed a Form 4 on December 5, 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>12/3/25</span></td></tr><tr><td><span>Transaction</span></td><td><span>Planned Sale(1)</span></td></tr><tr><td><span>Shares</span></td><td><span>7,500</span></td></tr><tr><td><span>Price</span></td><td><span>$182.97</span></td></tr><tr><td><span>Value</span></td><td><span>$1,372,262</span></td></tr></tbody></table></div><p><span>Ending Holdings: 116,545 - Direct</span></p><ul><li><span>(1)</span></li><li><span>Executed pursuant to a prearranged trading plan (10b5-1).</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>

CRAI

<p>Paul A. Maleh, Chairman of CRA International Inc, sold 7,500 shares valued at approximately $1.4 million as part of a prearranged trading plan. This transaction was disclosed in a Form 4 filing with the SEC on December 5, 2025. Maleh's direct holdings now total 116,545 shares.</p>

Chmn Maleh Sells 7,500 ($1.4M) Of CRA International Inc [CRAI]