Bruce R. Hazelgrove III - 05 Feb 2026 Form 4 Insider Report for NEWMARKET CORP (NEU)

Role: EVP & CAO
Signature: /s/ Anne-Marie Anderson (by Power of Attorney for Bruce R. Hazelgrove, III)
Issuer symbol: NEU
Transactions as of: 05 Feb 2026
Net transactions value: -$109,377
Form type: 4
Filing time: 09 Feb 2026, 16:30:14 UTC
Previous filing: 14 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Hazelgrove Bruce R III	EVP & CAO	330 SOUTH FOURTH STREET, RICHMOND	/s/ Anne-Marie Anderson (by Power of Attorney for Bruce R. Hazelgrove, III)	09 Feb 2026	0001318864

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	NEU	Common Stock	Award	$0	+475	+133%	$0.000000	833	05 Feb 2026	Direct	F1
transaction	NEU	Common Stock	Tax liability	$109,377	-153	-18%	$714.88	680	05 Feb 2026	Direct	F2
holding	NEU	Common Stock						21,906	05 Feb 2026	NewMarket Savings Plan	F3
holding	NEU	Common Stock						670	05 Feb 2026	Shares held by wife

* 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.