X0508 4 2026-03-01 0000075362 PACCAR INC PCAR 0001670013 DOZIER C MICHAEL 777 - 106TH AVE. N.E. BELLEVUE WA 98004 1 EXECUTIVE VICE PRESIDENT 0 Common Stock 2026-03-01 4 M 0 1794.0000 0 A 36450.0000 D Common Stock 2026-03-02 4 F 0 706.0000 126.0900 D 35744.0000 D Common Stock 20172.8960 I By PACCAR Savings Investment Plan (SIP) Stock Units (LTIP) 2026-03-01 4 M 0 1794.0000 D Common Stock 1794.0000 11134.0000 D Stock Option 104.1600 2027-01-01 2034-02-05 Common Stock 28610.0000 28610.0000 D Stock Option 109.1300 2028-01-01 2035-02-03 Common Stock 25460.0000 25460.0000 D Stock Option 127.3500 2029-01-01 2036-02-06 Common Stock 24782.0000 24782.0000 D Restricted stock units converted to common stock on a one-for-one basis upon satisfaction of all applicable vesting conditions. Shares withheld for payment of tax liability in connection with the vesting of restricted shares and/or restricted stock units. Restricted stock units awarded under PACCAR Long Term Incentive Plan (LTIP) and convertible to common stock on a one-for-one basis upon satisfaction of all applicable vesting conditions. Each award vests in four equal installments commencing on March 1 following the award and January 1 of the next three years. Michael R. Beers, by Power of Attorney 2026-03-02