Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| MRK | Guindo Chirfi | EVP, Access, Policy & Comms | 08/13/2026 | Verkauf | 135.00 | 10,000 | 1,350,000 | Form 4 |
| MRK | Zachary Jennifer | EVP, General Counsel | 08/12/2026 | Verkauf | 133.46 | 80,315 | 10,718,495 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/12/2026 | Verkauf | 132.04 | 600 | 79,222 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/12/2026 | Verkauf | 131.61 | 11,099 | 1,460,770 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/11/2026 | Verkauf | 132.35 | 5,427 | 718,261 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/11/2026 | Verkauf | 131.33 | 7,410 | 973,165 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/10/2026 | Verkauf | 130.43 | 20,784 | 2,710,951 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/06/2026 | Verkauf | 131.02 | 300 | 39,307 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/06/2026 | Verkauf | 130.23 | 4,945 | 643,993 | Form 4 |
| MRK | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 08/06/2026 | Verkauf | 131.02 | 805 | 105,472 | Form 4 |
| MRK | Guindo Chirfi | EVP, Access, Policy & Comms | 08/06/2026 | Verkauf | 131.00 | 15,000 | 1,965,000 | Form 4 |
| MRK | Maraldo David R. | EVP & Pres. MMD | 08/05/2026 | Verkauf | 128.72 | 2,686 | 345,736 | Form 4 |
| MRK | Maraldo David R. | EVP & Pres. MMD | 08/05/2026 | Verkauf | 128.72 | 9,709 | 1,249,722 | Form 4 |
| MRK | Maraldo David R. | EVP & Pres. MMD | 08/05/2026 | Verkauf | 128.72 | 6,311 | 812,339 | Form 4 |
| MRK | Williams David Michael | EVP,Chief Info&Digital Officer | 08/05/2026 | Verkauf | 128.77 | 34,705 | 4,468,987 | Form 4 |
| MRK | Williams David Michael | EVP,Chief Info&Digital Officer | 08/05/2026 | Verkauf | 128.77 | 13,542 | 1,743,813 | Form 4 |
| MRK | Williams David Michael | EVP,Chief Info&Digital Officer | 08/05/2026 | Verkauf | 128.77 | 4,600 | 592,345 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).