FilingIndex
SC 13D/AThe Stakes

NEWMARKET CORP files SC 13D/A

Filed Jan 7, 2026 · 5mo ago · Accession 0001193125-26-006618

Plain English

Activist stake — an investor has acquired more than 5% with intent to influence.

Read the source below for the full document.

Filing details
Ticker
NEU
CIK
1282637
Form type
SC 13D/A
Filing date
Jan 7, 2026
Report date
Document
Size