Litchfield Caroline (CIK 1854928) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-01). Recent activity: Buy MRK (3,935 shares), Sell MRK (1,938 shares), Buy MRK (41,997 shares), Sell MRK (41,997 shares), Buy MRK (15,852 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-01 | Merck & Co., Inc. (MRK) | EVP & CFO | Buy | 3,935 | $432,968 |
| 2026-05-01 | Merck & Co., Inc. (MRK) | EVP & CFO | Sell | 1,938 | $213,238 |
| 2026-02-06 | Merck & Co., Inc. (MRK) | EVP & CFO | Buy | 41,997 | $2.2M |
| 2026-02-06 | Merck & Co., Inc. (MRK) | EVP & CFO | Sell | 41,997 | $5.0M |
| 2026-01-28 | Merck & Co., Inc. (MRK) | EVP & CFO | Buy | 15,852 | $1.7M |
| 2025-01-29 | Merck & Co., Inc. (MRK) | EVP & CFO | Buy | 23,432 | $2.3M |
Source: SEC Form 4 filings · as of 2026-05-01