MICHAEL K. WALTON - 03 Dec 2025 Form 4 Insider Report for PACCAR INC (PCAR)

Role: VICE PRESIDENT/GENERAL COUNSEL
Signature: Michael R. Beers, by Power of Attorney
Issuer symbol: PCAR
Transactions as of: 03 Dec 2025
Net transactions value: +$6,712
Form type: 4
Filing time: 05 Dec 2025, 18:55:41 UTC
Previous filing: 05 Sep 2025
Next filing: 02 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
WALTON MICHAEL K	VICE PRESIDENT/GENERAL COUNSEL	777 - 106TH AVE. N.E., BELLEVUE	Michael R. Beers, by Power of Attorney	05 Dec 2025	0001819549

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PCAR	Common Stock	Other	$2,202	+20	+0.31%	$108.54	6,589	03 Dec 2025	By PACCAR Savings Investment Plan (SIP)	F1
holding	PCAR	Common Stock						1,332	03 Dec 2025	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PCAR	Stock Units (DCP)	Other	$4,510	+42	+0.3%	$108.54	13,708	03 Dec 2025	Common Stock	42		Direct	F2, F3
holding	PCAR	Stock Option						1,302	03 Dec 2025	Common Stock	1,302	$62.87	Direct
holding	PCAR	Stock Option						7,918	03 Dec 2025	Common Stock	7,918	$71.95	Direct
holding	PCAR	Stock Option						6,108	03 Dec 2025	Common Stock	6,108	$104.16	Direct
holding	PCAR	Stock Option						5,844	03 Dec 2025	Common Stock	5,844	$109.13	Direct
holding	PCAR	Stock Units (LTIP)						3,200	03 Dec 2025	Common Stock	3,200		Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP.
F2	Share units held in deferred phantom stock account under PACCAR Deferred Compensation Plan (DCP) convertible to common stock on a one-for-one basis upon satisfaction of all applicable conditions.
F3	Dividend on share units held in deferred phantom stock account under PACCAR Deferred Compensation Plan (DCP) reinvested pursuant to DCP.
F4	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.