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AI brief of an SEC Form 8-K · NewMarket (NEU)

NewMarket appoints Susan Ridlehoover as principal accounting officer

Neutral Impact 2 of 5 leadership Written later

NewMarket Corporation named Susan M. Ridlehoover, its Controller since January 2026, as Principal Accounting Officer effective February 18, 2026. She previously served as Senior Director, Corporate Controller at Sonoco Products Company and has over 20 years of accounting and finance experience. The filing describes this as an internal officer appointment with a base salary of $235,000, which is routine for shareholders.

Key points

  • Susan M. Ridlehoover, age 45, appointed Principal Accounting Officer effective February 18, 2026
  • She joined NewMarket as Controller in January 2026 after serving at Sonoco Products Company from January 2023
  • Base salary of $235,000, with eligibility for cash bonuses and restricted stock awards
  • Licensed Certified Public Accountant in Virginia; previously spent 10 years at Ernst & Young

The filing

CompanyNewMarket (NEU)
Form8-K, current report
Filed with the SECFeb 18, 2026, 5:10 PM ET
Accession number0001193125-26-057420

Items reported: 5.02 Director / Officer Change

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 12:58 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on February 18, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.