Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-02-19 Sale | 2025-02-20 4:01 pm | Merck & Co. Inc. | MRK | Oosthuizen Johannes Jacobus President, U.S. Market | 8,500 | $84.09 | $714,745 | 30,705 (Direct) | View |
| 2025-02-13 Sale | 2025-02-13 4:01 pm | Merck & Co. Inc. | MRK | Williams David Michael EVP,Chief Info&Digital Officer | 6,000 | $85.34 | $512,057 | 24,123 (Direct) | View |
| 2025-02-06 Purchase | 2025-02-07 4:09 pm | Merck & Co. Inc. | MRK | THULIN INGE G Director | 2,833 | $88.25 | $250,000 | 2,933 (Direct) | View |
| 2025-02-06 Sale | 2025-02-07 4:07 pm | Merck & Co. Inc. | MRK | Downing Cristal N Chief Comm. & Public Afrs Ofcr | 2,361 | $88.76 | $209,551 | 7,085 (Direct) | View |
| 2025-02-05 Purchase | 2025-02-07 4:04 pm | Merck & Co. Inc. | MRK | BAKER DOUGLAS M JR Director | 15,000 | $88.5 | $1,327,500 | 16,000 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-03-31 Option Award | 2025-04-02 09:57 am | N/A N/A | Merck & Co. Inc. | MRK | Seidman Christine E Director | 91 | $89.76 | 15,478 (Direct) | View |
| 2025-03-31 Option Award | 2025-04-02 09:53 am | N/A N/A | Merck & Co. Inc. | MRK | GLOCER THOMAS H Director | 543 | $89.76 | 104,679 (Direct) | View |
| 2025-03-31 Option Award | 2025-04-02 09:50 am | N/A N/A | Merck & Co. Inc. | MRK | Coe Mary Ellen Director | 334 | $89.76 | 24,578 (Direct) | View |
| 2025-02-08 Tax Withholding | 2025-02-11 2:59 pm | N/A N/A | Merck & Co. Inc. | MRK | Oosthuizen Johannes Jacobus President, U.S. Market | 6,404 | $87.28 | 39,205 (Direct) | View |
| 2025-02-08 Exercise | 2025-02-11 2:59 pm | N/A N/A | Merck & Co. Inc. | MRK | Oosthuizen Johannes Jacobus President, U.S. Market | 13,002 | $87.28 | 39,205 (Direct) | View |
| 2025-02-08 Exercise | 2025-02-11 2:59 pm | 2025-02-08 2025-02-08 | Merck & Co. Inc. | MRK | Oosthuizen Johannes Jacobus President, U.S. Market | 13,002 | $0 | 39,205 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:29 pm | N/A N/A | Merck & Co. Inc. | MRK | Zachary Jennifer EVP, General Counsel | 25,423 | $97.94 | 55,286 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:27 pm | N/A N/A | Merck & Co. Inc. | MRK | Williams David Michael EVP,Chief Info&Digital Officer | 10,246 | $97.94 | 30,123 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:25 pm | N/A N/A | Merck & Co. Inc. | MRK | Smart Dalton SVP Fin. - Global Controller | 2,586 | $97.94 | 7,014 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:23 pm | N/A N/A | Merck & Co. Inc. | MRK | Oosthuizen Johannes Jacobus President, U.S. Market | 8,664 | $97.94 | 32,607 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:21 pm | N/A N/A | Merck & Co. Inc. | MRK | Litchfield Caroline EVP & CFO | 23,432 | $97.94 | 74,340 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:19 pm | N/A N/A | Merck & Co. Inc. | MRK | Li Dean Y Executive VP & President, MRL | 32,621 | $97.94 | 79,592 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:17 pm | N/A N/A | Merck & Co. Inc. | MRK | Downing Cristal N Chief Comm. & Public Afrs Ofcr | 9,446 | $97.94 | 9,446 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:14 pm | N/A N/A | Merck & Co. Inc. | MRK | DeLuca Richard R. EVP&Pres, Merck Animal Heallth | 25,438 | $97.94 | 180,259 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:12 pm | N/A N/A | Merck & Co. Inc. | MRK | Davis Robert M Chairman, CEO & President | 95,275 | $97.94 | 443,602 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:09 pm | N/A N/A | Merck & Co. Inc. | MRK | Chattopadhyay Sanat Exe V-P & Pres. MMD | 28,136 | $97.94 | 185,328 (Direct) | View |
| 2025-01-27 Option Award | 2025-01-29 6:07 pm | N/A N/A | Merck & Co. Inc. | MRK | Guindo Chirfi Chief Marketing Officer | 28,158 | $97.94 | 69,199 (Direct) | View |
| 2024-12-31 Option Award | 2025-01-03 1:57 pm | N/A N/A | Merck & Co. Inc. | MRK | Seidman Christine E Director | 82 | $99.48 | 15,265 (Direct) | View |
| 2024-12-31 Option Award | 2025-01-03 1:55 pm | N/A N/A | Merck & Co. Inc. | MRK | GLOCER THOMAS H Director | 490 | $99.48 | 103,347 (Direct) | View |
| 2024-12-31 Option Award | 2025-01-03 1:53 pm | N/A N/A | Merck & Co. Inc. | MRK | Coe Mary Ellen Director | 302 | $99.48 | 24,051 (Direct) | View |
| 2025-01-01 Option Award | 2025-01-03 12:59 pm | N/A N/A | Merck & Co. Inc. | MRK | Karsanbhai Surendralal Lanca Director | 553 | $99.48 | 554 (Direct) | View |
Ownership | 2025-01-03 12:55 pm | N/A N/A | Merck & Co. Inc. | MRK | Karsanbhai Surendralal Lanca Director | 0 | $0 | 1 (Direct) | View |
Ownership | 2024-12-23 06:00 am | N/A N/A | Personalis Inc. | PSNL | Merck & Co. Inc. MERCK SHARP & DOHME LLC 10% Owner | 0 | $0 | 14,044,943 (Indirect) | View |
| 2024-09-30 Option Award | 2024-10-01 2:16 pm | N/A N/A | Merck & Co. Inc. | MRK | Seidman Christine E Director | 72 | $113.56 | 15,077 (Direct) | View |
| 2024-09-30 Option Award | 2024-10-01 2:10 pm | N/A N/A | Merck & Co. Inc. | MRK | GLOCER THOMAS H Director | 429 | $113.56 | 102,175 (Direct) | View |
| 2024-09-30 Option Award | 2024-10-01 2:06 pm | N/A N/A | Merck & Co. Inc. | MRK | Coe Mary Ellen Director | 264 | $113.56 | 23,584 (Direct) | View |
| 2024-08-05 Exercise | 2024-08-06 12:20 pm | N/A N/A | Merck & Co. Inc. | MRK | Guindo Chirfi Chief Marketing Officer | 36,901 | $115.2 | 77,326 (Direct) | View |
| 2024-08-05 Tax Withholding | 2024-08-06 12:20 pm | N/A N/A | Merck & Co. Inc. | MRK | Guindo Chirfi Chief Marketing Officer | 17,412 | $115.2 | 77,326 (Direct) | View |
| 2024-08-05 Exercise | 2024-08-06 12:20 pm | 2023-08-03 2025-08-03 | Merck & Co. Inc. | MRK | Guindo Chirfi Chief Marketing Officer | 36,901 | $0 | 77,326 (Direct) | View |
| 2024-06-28 Option Award | 2024-07-02 1:25 pm | N/A N/A | Merck & Co. Inc. | MRK | Seidman Christine E Director | 66 | $123.8 | 14,916 (Direct) | View |
| 2024-06-28 Option Award | 2024-07-02 1:23 pm | N/A N/A | Merck & Co. Inc. | MRK | GLOCER THOMAS H Director | 394 | $123.8 | 101,163 (Direct) | View |
| 2024-06-28 Option Award | 2024-07-02 1:20 pm | N/A N/A | Merck & Co. Inc. | MRK | Coe Mary Ellen Director | 242 | $123.8 | 23,180 (Direct) | View |
| 2024-05-31 Option Award | 2024-06-04 3:02 pm | N/A N/A | Merck & Co. Inc. | MRK | RUSSO PATRICIA F Director | 1,752 | $125.54 | 67,100 (Direct) | View |
| 2024-05-31 Option Award | 2024-06-04 3:00 pm | N/A N/A | Merck & Co. Inc. | MRK | Seidman Christine E Director | 1,752 | $125.54 | 14,850 (Direct) | View |
| 2024-05-31 Option Award | 2024-06-04 2:59 pm | N/A N/A | Merck & Co. Inc. | MRK | Warden Kathy J Director | 1,752 | $125.54 | 12,752 (Direct) | View |
| 2024-05-31 Option Award | 2024-06-04 2:55 pm | N/A N/A | Merck & Co. Inc. | MRK | Rothman Paul Director | 1,752 | $125.54 | 28,334 (Direct) | View |
| 2024-05-31 Option Award | 2024-06-04 2:44 pm | N/A N/A | Merck & Co. Inc. | MRK | THULIN INGE G Director | 1,752 | $125.54 | 21,329 (Direct) | View |
| 2024-05-31 Option Award | 2024-06-04 2:44 pm | N/A N/A | Merck & Co. Inc. | MRK | BAKER DOUGLAS M JR Director | 1,752 | $125.54 | 7,282 (Direct) | View |
| 2024-05-31 Option Award | 2024-06-04 2:41 pm | N/A N/A | Merck & Co. Inc. | MRK | Coe Mary Ellen Director | 1,752 | $125.54 | 22,937 (Direct) | View |