Business Context and Reporting Period
This Form 8-K Current Report was filed by NewMarket Corporation on February 18, 2026. The report discloses a corporate governance event under Item 5.02 regarding the appointment of a senior officer.
Key Financial Metrics
The filing text does not provide a clear value for revenue, profit, cash flow, margins, debt, or liquidity. This report focuses exclusively on personnel changes and does not contain financial performance data.
Material Changes
The material change reported is the appointment of Susan M. Ridlehoover as the Company's Principal Accounting Officer, effective immediately on February 18, 2026. She previously joined the Company as Controller in January 2026.
Management Commentary and Compensation
- Background: Ms. Ridlehoover, age 45, brings over 20 years of accounting and finance experience. Prior to NewMarket, she served as Senior Director, Corporate Controller at Sonoco Products Company, Inc. (2023–2026). Her previous roles include positions at Dominion Energy, Inc. (2015–2022) and 10 years at Ernst & Young.
- Certification: She is a licensed Certified Public Accountant in the Commonwealth of Virginia.
- Compensation: Her base salary is set at $235,000. She is eligible for cash bonuses, restricted stock awards, and participation in the Company's health, pension, and other benefit programs.
Investor Verification Checklist
- Verify the effective date of the Principal Accounting Officer appointment (February 18, 2026).
- Confirm the base salary and bonus structure for the new officer ($235,000 base).
- Review the transition timeline from her role as Controller (January 2026) to Principal Accounting Officer.
- Check for any subsequent filings regarding the resignation of the previous Principal Accounting Officer, if applicable.