MRK Insider Transactions
426 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
MRK insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| Guindo Chirfi | EVP, Access, Policy & Comms | 2026-08-13 | Sale | 10,000 | $135.00 |
| Zachary Jennifer | EVP, General Counsel | 2026-08-12 | Sale | 80,315 | $133.4557 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-12 | Sale | 600 | $132.0367 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-12 | Sale | 11,099 | $131.6128 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-11 | Sale | 5,427 | $132.3496 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-11 | Sale | 7,410 | $131.3313 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-10 | Sale | 20,784 | $130.4345 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-06 | Sale | 300 | $131.0233 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-06 | Sale | 4,945 | $130.2312 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-08-06 | Sale | 805 | $131.0216 |
| Guindo Chirfi | EVP, Access, Policy & Comms | 2026-08-06 | Sale | 15,000 | $131.00 |
| Maraldo David R. | EVP & Pres. MMD | 2026-08-05 | Sale | 2,686 | $128.7179 |
| Maraldo David R. | EVP & Pres. MMD | 2026-08-05 | Sale | 9,709 | $128.7179 |
| Maraldo David R. | EVP & Pres. MMD | 2026-08-05 | Sale | 6,311 | $128.7179 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2026-08-05 | Sale | 34,705 | $128.7707 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2026-08-05 | Sale | 13,542 | $128.7707 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2026-08-05 | Sale | 4,600 | $128.7707 |
| Guindo Chirfi | Chief Marketing Officer | 2026-02-12 | Sale | 10,000.0 | $121.46 |
| Li Dean Y | Executive VP & President, MRL | 2026-02-10 | Sale | 10,235.0 | $117.52 |
| Guindo Chirfi | Chief Marketing Officer | 2026-02-09 | Sale | 10,000.0 | $118.41 |
| Zachary Jennifer | EVP, General Counsel | 2026-02-09 | Sale | 38,835.0 | $119.15 |
| Zachary Jennifer | EVP, General Counsel | 2026-02-09 | Sale | 56,792.0 | $119.15 |
| Zachary Jennifer | EVP, General Counsel | 2026-02-09 | Sale | 25,946.0 | $119.15 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2026-02-06 | Sale | 5,000.0 | $121.91 |
| Oosthuizen Johannes Jacobus | President, U.S. Market | 2026-02-06 | Sale | 15,000.0 | $121.87 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2026-02-06 | Sale | 37,685.0 | $120.92 |
| Guindo Chirfi | Chief Marketing Officer | 2026-02-05 | Sale | 20,000.0 | $121.88 |
| Smart Dalton E. III | SVP Fin. - Global Controller | 2026-02-04 | Sale | 2,400.0 | $119.68 |
| Smart Dalton E. III | SVP Fin. - Global Controller | 2026-02-04 | Sale | 4,000.0 | $119.68 |
| Litchfield Caroline | EVP & CFO | 2026-02-04 | Sale | 41,997.0 | $119.61 |
| Li Dean Y | Executive VP & President, MRL | 2026-02-04 | Sale | 15,087.0 | $118.77 |
| Davis Robert M | Chairman, CEO & President | 2026-02-04 | Sale | 32,462.0 | $118.35 |
| Davis Robert M | Chairman, CEO & President | 2026-02-04 | Sale | 14,972.0 | $117.38 |
| Downing Cristal N | Chief Comm. & Public Afrs Ofcr | 2025-11-10 | Sale | 7,085.0 | $87.0 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2025-11-03 | Sale | 8,614.0 | $83.59 |
| Smart Dalton E. III | SVP Fin. - Global Controller | 2025-04-25 | Sale | 4,262.0 | $82.76 |
| Oosthuizen Johannes Jacobus | President, U.S. Market | 2025-02-19 | Sale | 8,500.0 | $84.09 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2025-02-13 | Sale | 6,000.0 | $85.34 |
| THULIN INGE G | Director | 2025-02-06 | Purchase | 2,832.86 | $88.25 |
| Downing Cristal N | Chief Comm. & Public Afrs Ofcr | 2025-02-06 | Sale | 2,361.0 | $88.76 |
| BAKER DOUGLAS M JR | Director | 2025-02-05 | Purchase | 15,000.0 | $88.5 |
| Litchfield Caroline | EVP & CFO | 2024-02-14 | Sale | 38,291.0 | $125.5 |
| Davis Robert M | Chairman, CEO & President | 2024-02-14 | Sale | 85,021.0 | $125.4 |
| Davis Robert M | Chairman, CEO & President | 2024-02-13 | Sale | 25,324.0 | $126.37 |
| Davis Robert M | Chairman, CEO & President | 2024-02-13 | Sale | 124,676.0 | $125.74 |
| Romanelli Joseph | President, Human Health Int?l | 2024-02-13 | Sale | 1,000.0 | $124.89 |
| Li Dean Y | Executive VP & President, MRL | 2024-02-09 | Sale | 14,702.0 | $125.5 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2024-02-07 | Sale | 1,451.0 | $127.57 |
| Oosthuizen Johannes Jacobus | President, U.S. Market | 2024-02-02 | Sale | 18,959.0 | $127.18 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2024-02-02 | Sale | 50,694.0 | $126.65 |
| Zachary Jennifer | EVP, General Counsel | 2024-02-02 | Sale | 49,499.0 | $126.97 |
| Oosthuizen Johannes Jacobus | President, U.S. Market | 2023-11-09 | Sale | 2,081.0 | $102.38 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2023-11-08 | Sale | 43,823.0 | $105.03 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-08-14 | Sale | 4,250.0 | $109.01 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-08-03 | Sale | 4,500.0 | $105.49 |
| Romanelli Joseph | President, Human Health Int?l | 2023-08-02 | Sale | 59.0 | $107.37 |
| Romanelli Joseph | President, Human Health Int?l | 2023-08-02 | Sale | 30.0 | $107.37 |
| Zachary Jennifer | EVP, General Counsel | 2023-05-04 | Sale | 19,141.0 | $117.59 |
| Karachun Rita A | Sr. VP Fince-Global Controller | 2023-05-04 | Sale | 15,875.0 | $117.53 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-05-03 | Sale | 13,400.0 | $119.01 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-05-03 | Sale | 12,000.0 | $119.01 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-05-03 | Sale | 15,000.0 | $119.01 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-05-03 | Sale | 13,000.0 | $119.01 |
| Williams David Michael | EVP,Chief Info&Digital Officer | 2023-05-02 | Sale | 7,509.0 | $116.82 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2023-05-01 | Sale | 75,436.0 | $116.03 |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | 2023-04-28 | Sale | 66,163.0 | $115.0 |
| Davis Robert M | Chairman, CEO & President | 2023-04-28 | Sale | 143,329.0 | $114.93 |
| Romanelli Joseph | President, Human Health Int?l | 2023-04-26 | Purchase | 3.0 | $113.68 |
| Chattopadhyay Sanat | Exe V-P & Pres. MMD | 2023-04-13 | Sale | 67,892.0 | $115.07 |
| Chattopadhyay Sanat | Exe V-P & Pres. MMD | 2023-04-13 | Sale | 66,163.0 | $115.06 |
| Romanelli Joseph | President, Human Health Int?l | 2023-03-24 | Sale | 35.0 | $104.65 |
| Romanelli Joseph | President, Human Health Int?l | 2023-03-20 | Purchase | 136.0 | $105.47 |
| Romanelli Joseph | President, Human Health Int?l | 2023-02-21 | Purchase | 11.0 | $109.2 |
| Romanelli Joseph | President, Human Health Int?l | 2023-02-15 | Sale | 5,000.0 | $108.22 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-02-13 | Sale | 1,815.0 | $109.1 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-02-09 | Sale | 5,000.0 | $107.0 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2023-02-06 | Sale | 4,436.0 | $104.25 |
| Zachary Jennifer | EVP, General Counsel | 2023-02-03 | Sale | 75,436.0 | $103.17 |
| Chattopadhyay Sanat | Exe V-P & Pres. MMD | 2023-01-09 | Sale | 1,702.0 | $114.46 |
| Chattopadhyay Sanat | Exe V-P & Pres. MMD | 2023-01-09 | Sale | 38,216.0 | $113.78 |
| Chattopadhyay Sanat | Exe V-P & Pres. MMD | 2023-01-09 | Sale | 3,940.0 | $112.78 |
| Chattopadhyay Sanat | Exe V-P & Pres. MMD | 2023-01-09 | Sale | 4,538.0 | $111.73 |
| Chattopadhyay Sanat | Exe V-P & Pres. MMD | 2023-01-09 | Sale | 35,598.0 | $110.61 |
| Romanelli Joseph | President, Human Health Int?l | 2022-12-19 | Purchase | 7.0 | $109.04 |
| Romanelli Joseph | President, Human Health Int?l | 2022-12-13 | Purchase | 56.0 | $110.96 |
| Romanelli Joseph | President, Human Health Int?l | 2022-12-06 | Purchase | 30.0 | $109.39 |
| Romanelli Joseph | President, Human Health Int?l | 2022-12-05 | Purchase | 107.0 | $109.54 |
| Romanelli Joseph | President, Human Health Int?l | 2022-12-02 | Purchase | 59.0 | $109.67 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2022-11-10 | Sale | 15,000.0 | $101.42 |
| Oosthuizen Johannes Jacobus | President, U.S. Market | 2022-11-09 | Sale | 1,795.0 | $103.21 |
| Davis Robert M | CEO & President | 2022-11-09 | Sale | 100.0 | $103.59 |
| Davis Robert M | CEO & President | 2022-11-09 | Sale | 79,918.0 | $102.98 |
| Davis Robert M | CEO & President | 2022-11-09 | Sale | 87,595.0 | $101.94 |
| MIZELL STEVEN | EVP, Chief HR Officer | 2022-11-08 | Sale | 20,000.0 | $101.0 |
| FRAZIER KENNETH C | Executive Chair | 2022-11-07 | Sale | 84,721.0 | $100.07 |
| FRAZIER KENNETH C | Executive Chair | 2022-11-07 | Sale | 126,134.0 | $99.42 |
| FRAZIER KENNETH C | Executive Chair | 2022-11-07 | Sale | 24,914.0 | $98.45 |
| Oosthuizen Johannes Jacobus | President, U.S. Market | 2022-11-07 | Sale | 45,561.0 | $99.47 |
| FRAZIER KENNETH C | Executive Chair | 2022-11-04 | Sale | 34,810.0 | $99.08 |
| FRAZIER KENNETH C | Executive Chair | 2022-11-04 | Sale | 200,190.0 | $98.53 |