Brian D. Paliotti - 05 Feb 2026 Form 4 Insider Report for NEWMARKET CORP (NEU)

Role: President Afton Chemical Corp
Signature: /s/ Anne-Marie Anderson (by Power of Attorney for Brian D. Paliotti)
Issuer symbol: NEU
Transactions as of: 05 Feb 2026
Net transactions value: -$122,244
Form type: 4
Filing time: 09 Feb 2026, 16:30:10 UTC
Previous filing: 03 Mar 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Paliotti Brian D	President Afton Chemical Corp	330 SOUTH FOURTH STREET, RICHMOND	/s/ Anne-Marie Anderson (by Power of Attorney for Brian D. Paliotti)	09 Feb 2026	0001627976

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NEU	Common Stock	Award	$0	+535	+19%	$0.000000	3,410	05 Feb 2026	Direct	F1
transaction	NEU	Common Stock	Tax liability	$122,244	-171	-5%	$714.88	3,239	05 Feb 2026	Direct	F2
holding	NEU	Common Stock						637	05 Feb 2026	NewMarket Savings Plan	F3

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

Explanation of Responses:

Id	Content
F1	On February 5, 2026, the Compensation Committee certified attainment of the performance goals for certain performance-based restricted stock awards ("Performance Stock"). The Performance Stock settled with shares of common stock.
F2	Shares withheld by the Company to satisfy tax withholding obligations related to the Performance Stock that vested on February 5, 2026.
F3	The increase in shares is due to periodic purchases by the Plan Trustee pursuant to the Plan.