Merck & Co., Inc. (MRK) — Insider Trading Activity

Merck & Co., Inc. (MRK) has 96 insider transactions on record, including 2 open-market purchases and 24 sales by company executives and directors. The most recent transaction was filed on 2026-08-13 by Guindo Chirfi. The largest single transaction was a sale of $ 10.72M by Zachary Jennifer.