Thomas E. Gottwald) - 18 Feb 2026 Form 4 Insider Report for NEWMARKET CORP (NEU)

Reporting relationship: Chairman, President & CEO, Director
Issuer ticker: NEU
Reported as of: 18 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Feb 2026, 16:30:10 UTC
Prior SEC filing: 09 Feb 2026
Next SEC filing: 08 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Anne-Marie Anderson, (by Power of Attorney for Thomas E. Gottwald)

Key filing fact

Thomas E. Gottwald) filed Form 4 for NEWMARKET CORP (NEU) on 20 Feb 2026.

Key facts

This page summarizes Thomas E. Gottwald)'s Form 4 filing for NEWMARKET CORP (NEU).
16 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 20 Feb 2026, 16:30.

Change

Previous filing in this sequence was filed on 09 Feb 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001246518 Primary reporting owner

GOTTWALD THOMAS E

Relationship: Chairman, President & CEO, Director
Address: 330 SOUTH FOURTH STREET, RICHMOND
Signature: /s/ Anne-Marie Anderson, (by Power of Attorney for Thomas E. Gottwald)
Signature date: 20 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +60
Change %: +0.05%
Price: $0.000000
Shares after: 119,455
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F1

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: -1,320
Change %: -1.1%
Price: $0.000000
Shares after: 118,135
Date: 18 Feb 2026
Ownership: Direct

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +60
Change %: +1.2%
Price: $0.000000
Shares after: 5,147
Date: 18 Feb 2026
Ownership: Shares held by wife

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +120
Change %: +5.2%
Price: $0.000000
Shares after: 2,436
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 1)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +120
Change %: +6.4%
Price: $0.000000
Shares after: 1,988
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 2)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +150
Change %: +8.9%
Price: $0.000000
Shares after: 1,830
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 3)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +120
Change %: +7.7%
Price: $0.000000
Shares after: 1,678
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 4)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +150
Change %: +12%
Price: $0.000000
Shares after: 1,436
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 5)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +180
Change %: +18%
Price: $0.000000
Shares after: 1,186
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 6)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +180
Change %: +18%
Price: $0.000000
Shares after: 1,164
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 7)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +180
Change %: +29%
Price: $0.000000
Shares after: 807
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 8)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +180
Change %: +41%
Price: $0.000000
Shares after: 618
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 9)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +120
Change %: +30%
Price: $0.000000
Shares after: 522
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 10)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +180
Change %: +98%
Price: $0.000000
Shares after: 363
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 11)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +180
Change %: +91%
Price: $0.000000
Shares after: 378
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 12)

NEU transaction

Common Stock

Gift

Transaction value: $0
Shares: +180
Change %: +98%
Price: $0.000000
Shares after: 363
Date: 18 Feb 2026
Ownership: Shares held as trustee for grandchild (trust 13)

NEU holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 39,921
Date: 18 Feb 2026
Ownership: NewMarket Savings Plan

NEU holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 46,407
Date: 18 Feb 2026
Ownership: Shares held as co-trustee fbo (among others reporting Floyd D. Gottwald)

NEU holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 6,889
Date: 18 Feb 2026
Ownership: Shares held as co-trustee fbo children dtd. 12/16/1991

NEU holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 143,837
Date: 18 Feb 2026
Ownership: 2025 GRAT
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

On February 11, 2026, 81,163 shares of the Company's common stock were transferred out of the 2025 GRAT as an annuity payment to the reporting person's directly held account.