Sec Form 4 Filing - FEIGHT R PRESTON @ PACCAR INC - 2021-01-29

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person FEIGHT R PRESTON 2. Issuer Name and Ticker or Trading Symbol PACCAR INC [ PCAR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) CHIEF EXECUTIVE OFFICER (Last) (First) (Middle) 777 - 106TH AVE. N.E. 3. Date of Earliest Transaction (MM/DD/YY) 01/29/2021 (Street) BELLEVUE, WA98004 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 01/29/2021 M 5,414 A $ 43.24 21,606 D Common Stock 01/29/2021 S 3,288 D $ 89.8115 ( 1 ) 18,318 D Common Stock 9,036.324 I By PACCAR Savings Investment Plan (SIP)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option $ 43.24 01/29/2021 M 5,414 01/01/2015 02/02/2022 Common Stock 5,414 ( 2 ) 0 D Stock Option $ 47.81 01/01/2016 02/06/2023 Common Stock 6,794 6,794 D Stock Option $ 50 01/01/2019 02/04/2026 Common Stock 12,474 12,474 D Stock Option $ 59.15 01/01/2017 02/07/2024 Common Stock 5,352 5,352 D Stock Option $ 62.46 01/01/2018 02/04/2025 Common Stock 7,046 7,046 D Stock Option $ 65.56 01/01/2022 02/06/2029 Common Stock 40,768 40,768 D Stock Option $ 67.63 01/01/2020 02/07/2027 Common Stock 9,958 9,958 D Stock Option $ 68.69 01/01/2021 02/07/2028 Common Stock 8,778 8,778 D Stock Option $ 76.18 01/01/2023 02/04/2030 Common Stock 74,706 74,706 D Stock Units (LTIP) ( 3 ) ( 3 ) ( 3 ) Common Stock 4,892 4,892 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other FEIGHT R PRESTON 777 - 106TH AVE. N.E. BELLEVUE, WA98004 X CHIEF EXECUTIVE OFFICER Signatures Irene E. Song, by Power of Attorney 02/01/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The price shown is a weighted average sale price for shares sold in multiple transactions; the sale prices ranged from $89.7701 to $89.90 per share. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range. ( 2 )Option to buy awarded under PACCAR Long Term Incentive Plan (LTIP). ( 3 )Restricted stock units held in deferred phantom stock account under LTIP convertible to common stock on a one-for-one basis upon satisfaction of all applicable vesting conditions.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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