William Lance Walters Form 3 Filing for PACCAR Stock Holdings and Options

This is a Form 3 filing by William Lance Walters, Vice President of PACCAR Inc, disclosing his ownership of company securities as of April 1, 2026. The filing reveals extensive stock option holdings with various exercise dates from 2022-2029 and expiration dates extending to 2036. Walters holds nine separate stock option grants totaling over 33,000 underlying shares with exercise prices ranging from $43.71 to $127.35 per share. Additionally, he holds 2,663.766 deferred phantom stock units in the PACCAR Deferred Compensation Plan (DCP) convertible to common stock on a one-for-one basis. Through the PACCAR Savings Investment Plan (SIP), he indirectly owns 26,140.429 common shares. All holdings are reported as direct ownership except for the SIP shares which are indirect. The filing was signed by Michael R. Beers via power of attorney on April 8, 2026.