NewMarket Corp (NEU) director discloses gifted 330-share insider transaction

Rhea-AI Filing Summary

NewMarket Corp director reports gifted share transfer

A NewMarket Corp (NEU) director reported a transaction dated 09/18/2025 involving common stock. The filing shows a transaction coded "G," indicating a gift of 330 shares at a stated price of $0.00 per share. After this transfer, the reporting person beneficially owns 529 shares of NewMarket common stock in direct ownership. The report is filed by a single reporting person in their capacity as a director.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Xu Ting

(Last) (First) (Middle)

330 SOUTH FOURTH STREET

(Street)

RICHMOND VA 23219

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NEWMARKET CORP [ NEU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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	09/18/2025		G		330	D	$0.00	529	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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

Explanation of Responses:

	/s/ Anne-Marie Anderson, (by Power of Attorney for Ting Xu)	12/09/2025
	** Signature of Reporting Person	Date
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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did NewMarket Corp (NEU) report in this Form 4?

The filing reports a director’s transaction coded "G," indicating a gift of 330 shares of NewMarket Corp common stock on 09/18/2025.

What is the reporting person’s relationship to NewMarket Corp (NEU)?

The reporting person is identified as a Director of NewMarket Corp, with the director box checked and no officer or 10% owner role marked.

How many NewMarket Corp (NEU) shares were owned after the reported transaction?

Following the reported gift transaction, the reporting person beneficially owned 529 shares of NewMarket Corp common stock in direct ownership.

What does transaction code "G" mean in this NewMarket Corp (NEU) Form 4?

In this context, transaction code "G" denotes a gift of securities, as shown for the 330 shares of common stock transferred on 09/18/2025.

Was this NewMarket Corp (NEU) Form 4 filed by one or multiple reporting persons?

The filing indicates it is a Form filed by one reporting person, with the corresponding box checked in the individual or joint/group filing section.

What type of security was involved in the NewMarket Corp (NEU) insider transaction?

The reported transaction involved NewMarket Corp common stock, listed in Table I as the title of the non-derivative security.