Williams David Michael (CIK 1820958) reported 10 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-01). Recent activity: Buy MRK (1,377 shares), Sell MRK (679 shares), Buy MRK (5,000 shares), Sell MRK (5,000 shares), Buy MRK (6,112 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-01 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Buy | 1,377 | $151,511 |
| 2026-05-01 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Sell | 679 | $74,710 |
| 2026-02-06 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Buy | 5,000 | $388,100 |
| 2026-02-06 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Sell | 5,000 | $609,550 |
| 2026-01-28 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Buy | 6,112 | $656,429 |
| 2025-11-04 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Sell | 8,614 | $720,044 |
| 2025-08-05 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Buy | 17,119 | $1.4M |
| 2025-08-05 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Sell | 8,432 | $668,573 |
| 2025-02-13 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Sell | 6,000 | $512,040 |
| 2025-01-29 | Merck & Co., Inc. (MRK) | EVP,Chief Info&Digital Officer | Buy | 10,246 | $1.0M |
Source: SEC Form 4 filings · as of 2026-05-01