Form 4 Filing for PACCAR INC

This filing details stock transactions by Brice J Poplawski, Sr. Vice President & CFO of PACCAR INC. On July 31, 2026, Poplawski acquired 1970 shares of Common Stock at $71.95 per share and disposed of 1970 shares of Common Stock at $132.50 per share. Additionally, a stock option for 1970 shares with an exercise price of $71.95 was disposed of. Following these transactions, Poplawski holds 1391 shares of Common Stock directly. The filing also reports indirect ownership of 18432.73 shares of Common Stock through the PACCAR Savings Investment Plan (SIP). Several derivative holdings, including stock options and restricted stock units, are also listed with their respective details and post-transaction amounts.