X0508 4 2026-03-04 0000075362 PACCAR INC PCAR 0001936490 Bolgar Paulo Henrique 777 - 106TH AVE. N.E. BELLEVUE WA 98004 1 Vice President 0 Common Stock 2026-03-04 4 J 0 2.0880 124.9200 A 909.2930 I By PACCAR Savings Investment Plan (SIP) Common Stock 6728.0000 D Stock Option 71.9500 2026-01-01 2033-02-08 Common Stock 11374.0000 11374.0000 D Stock Option 104.1600 2027-01-01 2034-02-05 Common Stock 8294.0000 8294.0000 D Stock Option 109.1300 2028-01-01 2035-02-03 Common Stock 9792.0000 9792.0000 D Stock Option 127.3500 2029-01-01 2036-02-06 Common Stock 9500.0000 9500.0000 D Stock Units (LTIP) Common Stock 4625.0000 4625.0000 D Dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP. Balance includes shares awarded under PACCAR Savings Investment Plan (Company match) in exempt transaction(s) under Rule16b-3(c) and Rule 16b-3(d). Restricted stock units held in deferred phantom stock account under Long Term Incentive Plan (LTIP) convertible to common stock on a one-for-one basis upon satisfaction of all applicable vesting conditions. Michael R. Beers, by Power of Attorney 2026-03-06