William J. Skrobacz) - 27 Feb 2024 Form 4 Insider Report for NEWMARKET CORP (NEU)

Role: Vice President & CFO
Signature: /s/ Anne-Marie Anderson (by Power of Attorney for William J. Skrobacz)
Issuer symbol: NEU
Transactions as of: 27 Feb 2024
Net transactions value: -$5,090
Form type: 4
Filing time: 29 Feb 2024, 16:31:13 UTC
Previous filing: 07 Feb 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NEU	Common Stock	Tax liability	$5,090	-8	-2%	$636.31	384	27 Feb 2024	Direct	F1, F2
holding	NEU	Common Stock						976	27 Feb 2024	NewMarket Savings Plan	F3

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

Explanation of Responses:

Id	Content
F1	Shares withheld by the Company to satisfy tax withholding obligations related to the vesting of shares of restricted stock granted to the reporting person effective February 26, 2019.
F2	Total reflects the prior withholding of 8 shares for taxes upon the vesting of shares of restricted stock on March 14, 2023.
F3	The increase in shares is due to periodic purchases by the Plan Trustee pursuant to the Plan.