Transactions
9
Insider / Merck & Co., Inc.
Williams David Michael
EVP,Chief Info&Digital Officer at Merck & Co., Inc. · MRK
Williams David Michael, EVP,Chief Info&Digital Officer at Merck & Co., Inc., has disclosed 9 transactions in MRK since August 7, 2026: 0 purchases (0 open-market buys) and 3 sales, worth about $10.7M at the reported prices. The latest was filed August 7, 2026, 2 days after the trade.
Open-market buys
0
Sales
3
Avg. disclosure lag
2.0d
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source |
|---|---|---|---|---|---|---|---|---|---|
| MRK | Option / conversion M | August 5, 2026 | August 7, 2026 | 2d | 34,705 | — | — | derivative | Form 4 ↗ |
| MRK | Option / conversion M | August 5, 2026 | August 7, 2026 | 2d | 13,542 | — | — | derivative | Form 4 ↗ |
| MRK | Option / conversion M | August 5, 2026 | August 7, 2026 | 2d | 4,600 | — | — | derivative | Form 4 ↗ |
| MRK | Sell S | August 5, 2026 | August 7, 2026 | 2d | 34,705 | $129 | $4.5M | Form 4 ↗ | |
| MRK | Option / conversion M | August 5, 2026 | August 7, 2026 | 2d | 34,705 | $74 | $2.6M | Form 4 ↗ | |
| MRK | Sell S | August 5, 2026 | August 7, 2026 | 2d | 13,542 | $129 | $1.7M | Form 4 ↗ | |
| MRK | Option / conversion M | August 5, 2026 | August 7, 2026 | 2d | 13,542 | $75 | $1.0M | Form 4 ↗ | |
| MRK | Sell S | August 5, 2026 | August 7, 2026 | 2d | 4,600 | $129 | $592K | Form 4 ↗ | |
| MRK | Option / conversion M | August 5, 2026 | August 7, 2026 | 2d | 4,600 | $78 | $357K | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| August 7, 2026 | Form 4 | 0000310158-26-000214 | 9 | published | EDGAR ↗ |
Sources and method
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.