PACCAR INC (PCAR) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-03 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: PACCAR INC (PCAR) CIK: 0000075362 --- Reporting Owner --- Name: Walters William Lance CIK: 0002127540 Role: Officer (Vice President) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-03 | Code: J (Other acquisition/disposition) Shares: +79.668 | Price: $114.38 Total Value: $9,112.43 Shares Owned After: 26,243.924 | Ownership: I (Indirect) | Nature: By PACCAR Savings Investment Plan (SIP) Footnotes: [F1] Dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP. [F2] Balance includes shares awarded under PACCAR Savings Investment Plan (Company match) in exempt transaction(s) under Rule16b-3(c) and Rule 16b-3(d). --- Derivative Transactions --- [Transaction #1] Security: Stock Units (DCP) Date: 2026-06-03 | Code: J (Other acquisition/disposition) Shares: +8.702 | Price: $114.38 Shares Owned After: 2,852.431 | Ownership: D (Direct) Footnotes: [F3] 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. [F4] Dividend on share units held in deferred phantom stock account under PACCAR Deferred Compensation Plan (DCP) reinvested pursuant to DCP. [F3] 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] 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. [F5] Balance includes shares deferred under PACCAR Deferred Compensation Plan in exempt transaction(s) under Rule16b-3(c) and Rule 16b-3(d). --- Holdings --- [Holding #1] Security: Stock Option Ownership: D (Direct) [Holding #2] Security: Stock Option Ownership: D (Direct) [Holding #3] Security: Stock Option Ownership: D (Direct) [Holding #4] Security: Stock Option Ownership: D (Direct) [Holding #5] Security: Stock Option Ownership: D (Direct) [Holding #6] Security: Stock Option Ownership: D (Direct) [Holding #7] Security: Stock Option Ownership: D (Direct) [Holding #8] Security: Stock Option Ownership: D (Direct) --- Footnotes (Complete Index) --- F1: Dividend on PACCAR Savings Investment Plan (SIP) shares reinvested pursuant to SIP. F2: Balance includes shares awarded under PACCAR Savings Investment Plan (Company match) in exempt transaction(s) under Rule16b-3(c) and Rule 16b-3(d). F3: 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. F4: Dividend on share units held in deferred phantom stock account under PACCAR Deferred Compensation Plan (DCP) reinvested pursuant to DCP. F5: Balance includes shares deferred under PACCAR Deferred Compensation Plan in exempt transaction(s) under Rule16b-3(c) and Rule 16b-3(d). --- Signature --- /s/ Michael R. Beers, by Power of Attorney (2026-06-05)