7 Form 4 filings for MRK between 2026-08-07 and 2026-08-13, from 5 filers. 7 discretionary (5 sales, 2 purchases). 3 of 7 state a filing-level total, summing to $17,449,637; the rest report only their largest transaction, so the true figure is higher. Prices ran $74 to $135.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-13 | Guindo Chirfi | sold | 10,000 | $135.00 | — | — | |
| 2026-08-13 | Zachary Jennifer | sold | 80,315 | $133.46 | $10,718,495 | 3 | |
| 2026-08-12 | DeLuca Richard R. | sold | 20,784 | $130.43 | $5,942,369 | 5 | |
| 2026-08-10 | DeLuca Richard R. | sold | 4,945 | $130.23 | $788,773 | 3 | |
| 2026-08-07 | Maraldo David R. | acquired | 9,709 | $87.10 | — | 6 | |
| 2026-08-07 | Williams David Michael | acquired | 34,705 | $73.73 | — | 6 | |
| 2026-08-07 | Guindo Chirfi | sold | 15,000 | $131.00 | — | — | |
| 7 filings · 5 filers · disclosed totals only | $17,449,637 (3/7) | — | |||||