<div><div></div><div><span><p><span>Michael A. Bieber, an insider and Director serving as President And CEO, reported a sale of common stock on 2026-05-13. The shares were sold at a weighted average price of $92.65 per share, with individual sale prices ranging from $92.50 to $92.85. The total sale amount reported was $925,666. Following the transaction, Bieber directly owns 249,525 shares of common stock. The filing notes that 36,668 of the reported shares consist of restricted stock units that vest on specified dates contingent on continued service.</span></p><div><table><tbody><tr><td><span>Reporter Name</span></td><td><span>Bieber Michael A</span></td></tr><tr><td><span>Relationship</span></td><td><span>PRESIDENT AND CEO</span></td></tr><tr><td><span>Type</span></td><td><span>Sell</span></td></tr><tr><td><span>Amount</span></td><td><span>$925,666</span></td></tr><tr><td><span>SEC Filing</span></td><td>Form 4</td></tr></tbody></table></div><section><b><span class="heading-aHOVUrmQ">Disclaimer</span></b><div><span>This is an AI-powered summary. It may contain inaccuracies. Consider verifying important information with the source. Please note this summary is solely based on documents filed with the SEC.</span></div></section></span></div></div>

WLDN

<p>Michael A. Bieber, President and CEO of Willdan, sold shares worth $925,666 on May 13, 2026, at an average price of $92.65 per share. The sale included prices ranging from $92.50 to $92.85. After the transaction, Bieber retains ownership of 249,525 shares, including 36,668 shares in restricted stock units that will vest based on continued service.</p>

Willdan President And CEO Sold Shares Worth Over $925K