14 insiders reported 111 Form 4 transactions for Merck & Co., Inc. (MRK) over the past 18 months (most recent 2026-08-13). Recent activity: Zachary Jennifer (EVP, General Counsel) Buy 41,494 shares, Zachary Jennifer (EVP, General Counsel) Buy 13,433 shares, Zachary Jennifer (EVP, General Counsel) Sell 80,315 shares, Guindo Chirfi (EVP, Access, Policy & Comms) Sell 10,000 shares, DeLuca Richard R. (EVP&Pres, Merck Animal Heallth) Sell 600 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-13 | Zachary Jennifer | EVP, General Counsel | Buy | 41,494 | $4.9M |
| 2026-08-13 | Zachary Jennifer | EVP, General Counsel | Buy | 13,433 | $1.1M |
| 2026-08-13 | Zachary Jennifer | EVP, General Counsel | Sell | 80,315 | $10.7M |
| 2026-08-13 | Guindo Chirfi | EVP, Access, Policy & Comms | Sell | 10,000 | $1.4M |
| 2026-08-12 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 600 | $79,222 |
| 2026-08-12 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 20,784 | $2.7M |
| 2026-08-12 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 7,410 | $973,165 |
| 2026-08-12 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 5,427 | $718,261 |
| 2026-08-12 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 11,099 | $1.5M |
| 2026-08-10 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 805 | $105,472 |
| 2026-08-10 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 4,945 | $643,993 |
| 2026-08-10 | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | 300 | $39,307 |
| 2026-08-07 | Guindo Chirfi | EVP, Access, Policy & Comms | Sell | 15,000 | $2.0M |
| 2026-08-07 | Williams David Michael | EVP,Chief Info&Digital Officer | Buy | 4,600 | $357,052 |
| 2026-08-07 | Maraldo David R. | EVP & Pres. MMD | Buy | 6,311 | $465,310 |
| 2026-08-07 | Williams David Michael | EVP,Chief Info&Digital Officer | Sell | 4,600 | $592,345 |
| 2026-08-07 | Maraldo David R. | EVP & Pres. MMD | Sell | 6,311 | $812,339 |
| 2026-08-07 | Williams David Michael | EVP,Chief Info&Digital Officer | Buy | 13,542 | $1.0M |
| 2026-08-07 | Maraldo David R. | EVP & Pres. MMD | Buy | 9,709 | $845,654 |
| 2026-08-07 | Williams David Michael | EVP,Chief Info&Digital Officer | Sell | 13,542 | $1.7M |
| 2026-08-07 | Maraldo David R. | EVP & Pres. MMD | Sell | 9,709 | $1.2M |
| 2026-08-07 | Williams David Michael | EVP,Chief Info&Digital Officer | Buy | 34,705 | $2.6M |
| 2026-08-07 | Maraldo David R. | EVP & Pres. MMD | Buy | 2,686 | $227,531 |
| 2026-08-07 | Williams David Michael | EVP,Chief Info&Digital Officer | Sell | 34,705 | $4.5M |
| 2026-08-07 | Maraldo David R. | EVP & Pres. MMD | Sell | 2,686 | $345,736 |
来源：SEC Form 4 申报文件 · 截至 2026-08-13