NEWMARKET CORP 8-K

What Happened
NewMarket Corporation (NEU) announced on February 11, 2026 that it issued a press release reporting its results for the fourth quarter and the full year ended December 31, 2025. The press release was furnished with the SEC as Exhibit 99.1 to the Form 8-K; the filing also includes an Inline XBRL cover page (Exhibit 104). The Form 8-K was signed by Timothy K. Fitzgerald, Vice President and Chief Financial Officer, on February 11, 2026.

Key Details

• Press release date: February 11, 2026 (reports Q4 and full-year results for period ended December 31, 2025).
• Exhibit furnished: 99.1 — press release containing the earnings announcement.
• Machine-readable data: Exhibit 104 — Cover Page Interactive Data File (Inline XBRL).
• Signature: Form 8-K signed by Timothy K. Fitzgerald, VP & CFO, dated February 11, 2026.

Why It Matters
This 8-K notifies investors that NewMarket has released its quarterly and annual earnings information; those results (revenue, net income, margins, cash flow and management commentary) are contained in the furnished press release and the accompanying XBRL data. Retail investors should review Exhibit 99.1 and the Inline XBRL file for the detailed figures and any management commentary, as those items will drive market reactions and inform investment decisions.