NewMarket Corp authorizes $500M share repurchase program through Dec 2027

NEWMARKET CORP

Board approved new $500M buyback program, replacing existing $500M program expiring Dec 31, 2024.
Repurchases may occur in open market, private transactions, block trades, or Rule 10b5-1 plans.
Program runs through December 31, 2027; no minimum share purchase obligation.
Company may terminate or suspend the program at any time.

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