NewMarket (NEU) EVP and General Counsel reports performance stock vesting and tax share withholding

Rhea-AI Filing Summary

NewMarket Corp executive Bryce Dickinson Jewett III reported equity compensation activity in company stock. On February 5, 2026, he acquired 415 shares of common stock at $0.00 per share following certification of performance-based restricted stock awards that settled in stock. On the same date, 136 shares were withheld at $714.88 per share to cover tax obligations related to those vested awards, leaving 453 directly held shares afterward. He also had 221.67 shares held indirectly through the NewMarket Savings Plan, reflecting periodic plan purchases.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Jewett Bryce Dickinson III

Role EVP and General Counsel

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	415	$0.00	--
Tax Withholding	Common Stock	136	$714.88	$97K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 589 shares (Direct); Common Stock — 221.67 shares (Indirect, NewMarket Savings Plan)

Footnotes (1)

1. 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. Shares withheld by the Company to satisfy tax withholding obligations related to the Performance Stock that vested on February 5, 2026. The increase in shares is due to periodic purchases by the Plan Trustee pursuant to the Plan.

Form 4 Insider Transactions: What Each Field Means →

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

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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^*

Jewett Bryce Dickinson III

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and General Counsel

3. Date of Earliest Transaction (Month/Day/Year)
02/05/2026

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	02/05/2026		A		415(1)	A	$0.00	589	D
Common Stock	02/05/2026		F		136(2)	D	$714.88	453	D
Common Stock								221.67(3)	I	NewMarket Savings Plan

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:

1. 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.

2. Shares withheld by the Company to satisfy tax withholding obligations related to the Performance Stock that vested on February 5, 2026.

3. The increase in shares is due to periodic purchases by the Plan Trustee pursuant to the Plan.

	/s/ Anne-Marie Anderson (by Power of Attorney for Bryce D. Jewett,III)	02/09/2026
	** 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.
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FAQ

What insider transactions did NEU executive Bryce Jewett report on February 5, 2026?

Bryce Dickinson Jewett III reported acquiring 415 shares of NewMarket Corp common stock at $0.00 per share, tied to performance-based restricted stock awards. He also had 136 shares withheld at $714.88 per share to satisfy related tax obligations on the vested awards.

How many NewMarket (NEU) shares does Bryce Jewett own directly after this Form 4?

After the reported transactions, Bryce Dickinson Jewett III directly held 453 shares of NewMarket common stock. This figure reflects the net result of 415 shares received from performance stock vesting and 136 shares withheld by the company to cover tax withholding obligations.

What is the role of performance-based restricted stock in this NEU Form 4 filing?

The filing shows performance-based restricted stock awards, called Performance Stock, vested after the Compensation Committee certified performance goals on February 5, 2026. These awards settled in NewMarket common shares, resulting in 415 shares being credited to Bryce Dickinson Jewett III at no purchase price.

Why were 136 NewMarket (NEU) shares reported with transaction code F at $714.88?

The 136 shares with transaction code F at $714.88 per share were withheld by NewMarket to satisfy tax withholding obligations. These taxes related to the Performance Stock that vested on February 5, 2026, reducing the number of shares Bryce Dickinson Jewett III directly retained.

What does Bryce Jewett’s indirect ownership in the NewMarket Savings Plan represent?

The filing shows 221.67 shares of NewMarket common stock held indirectly through the NewMarket Savings Plan. A footnote explains this increase is due to periodic purchases by the plan trustee under the plan, reflecting ongoing accumulation rather than a one-time trade by the executive.

What is Bryce Jewett’s position at NewMarket Corp (NEU) as disclosed in the Form 4?

Bryce Dickinson Jewett III is identified as an Officer of NewMarket Corp, serving as EVP and General Counsel. The Form 4 confirms his status as a reporting person under Section 16, triggering disclosure of his equity compensation and related share withholding transactions.