[Form 4] NewMarket Corporation Insider Trading Activity

Rhea-AI Filing Summary

Bruce C. Gottwald, a director and reported >10% owner of NewMarket Corporation (NEU), reported a non-derivative disposition on 09/05/2025 of 2,400 common shares via a transaction coded G (gift) at a reported price of $0. After the reported transaction Mr. Gottwald owned 60,741 shares directly and beneficially owned 850,000 shares indirectly via a 2025 GRAT plus 18,731 shares held by his wife.

Positive

• Timely disclosure of insider transaction with clear ownership breakdown
• Transparency about indirect holdings (850,000 shares in a 2025 GRAT and 18,731 shares held by spouse)

Negative

• Direct holdings reduced by 2,400 shares via a gift (transaction code G)

Insights

Financial Analyst

TL;DR Routine insider gift reduced direct holdings slightly while substantial indirect holdings via a GRAT remain.

The Form 4 shows a small, non-sale disposition: 2,400 common shares were transferred on 09/05/2025 under code G, indicating a gift, recorded at $0. Direct ownership after the transaction is 60,741 shares. Material economic exposure remains concentrated in indirect holdings: 850,000 shares held in a 2025 GRAT and 18,731 shares held by spouse. This filing is informational and does not report option or derivative activity.

Corporate Governance Expert

TL;DR Disclosure appears complete for the reported transfer; shows director status and substantial indirect ownership vehicles.

The reporting person is identified as both a director and a >10% owner. The filing documents the transfer method (code G) and the ownership breakdown between direct and indirect holdings, including a grantor retained annuity trust (GRAT) and spousal holdings. The signature by a power of attorney is provided. No amendments or derivative transactions are reported.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

GOTTWALD BRUCE C

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

3. Date of Earliest Transaction (Month/Day/Year)
09/05/2025

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	09/05/2025		G		2,400	D	$0	60,741	D
Common Stock								850,000	I	2025 GRAT
Common Stock								18,731	I	Shares held by wife

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 Bruce Gottwald)	09/05/2025
	** 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 transaction did Bruce C. Gottwald report for NEU on 09/05/2025?

He reported a disposition of 2,400 common shares on 09/05/2025 coded G (gift) at a reported price of $0.

How many NEU shares does Bruce C. Gottwald beneficially own after the reported transaction?

Following the reported transaction he directly owns 60,741 shares and indirectly beneficially owns 850,000 shares via a 2025 GRAT plus 18,731 shares held by his wife.

Does the Form 4 report any derivative or option activity for NEU by Gottwald?

No. Table II for derivative securities shows no reported derivative or option transactions.

What does transaction code G on Form 4 mean in this filing?

In this filing code G is used for the 2,400-share transaction and is shown with a price of $0, indicating a gift disposition as reported.

Is the reporting person an insider of NewMarket (NEU)?

Yes. The form identifies Bruce C. Gottwald as a Director and a reported 10% owner of NEU.