Merck & Co., Inc. insider buying and selling
10 Form 4 filings against Merck & Co., Inc. (MRK) in the last 90 days. Below are the transactions from 4 recent filings, one per insider where the window allows, as filed.
| Date | Insider | Role | Transaction | Code | Shares | Price | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-13 | Guindo Chirfi | EVP, Access, Policy & Comms | open-market sale | S | 10,000 | $135.00 | 36,613 |
What the filings show
Across the 4 filings read here, 1 insider at Merck & Co., Inc. (MRK) reported 1 open-market sale of 10,000 shares worth about $1.4M.
The largest by value was Guindo Chirfi (EVP, Access, Policy & Comms), with about $1.4M sold on the open market.
10 Form 4 filings were made against Merck & Co., Inc. in the 90 days to October 9, 2026; the paid report reads all of them.
The Form 4 flow against Merck & Co., Inc., parsed and explained
The free view above is the newest few filings. The paid report reads the newest Form 4 filings of the last 90 days (up to 100), separates open-market buys and sales from awards, exercises and tax withholding, totals the flow per insider, flags 10b5-1 plans where the filing notes them, and hands you a cited write-up plus a downloadable transactions table.
Generated from public SEC EDGAR filings. Filing data is shown as filed. This is information, not investment advice.