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 |
2025-04-25 Sale |
2025-04-29 4:04 pm |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
4,262 | $82.76 | $352,723 | 7,778 (Direct) |
View |
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 |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2025-06-30 Option Award |
2025-07-02 12:08 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Seidman Christine E Director |
103 | $79.16 | 18,596 (Direct) |
View |
2025-06-30 Option Award |
2025-07-02 12:06 pm |
N/A N/A |
Merck & Co. Inc. | MRK | GLOCER THOMAS H Director |
616 | $79.16 | 109,141 (Direct) |
View |
2025-06-30 Option Award |
2025-07-02 12:04 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Coe Mary Ellen Director |
379 | $79.16 | 28,062 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 1:45 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Warden Kathy J Director |
2,863 | $76.84 | 16,004 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 1:25 pm |
N/A N/A |
Merck & Co. Inc. | MRK | THULIN INGE G Director |
2,863 | $76.84 | 27,697 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 1:22 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Seidman Christine E Director |
2,863 | $76.84 | 18,493 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 1:21 pm |
N/A N/A |
Merck & Co. Inc. | MRK | RUSSO PATRICIA F Director |
2,863 | $76.84 | 71,671 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 1:18 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Rothman Paul Director |
2,863 | $76.84 | 32,091 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 1:14 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Mayo Stephen Director |
2,863 | $76.84 | 12,640 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 1:05 pm |
N/A N/A |
Merck & Co. Inc. | MRK | LAVIZZO-MOUREY RISA J Director |
2,863 | $76.84 | 16,367 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 12:58 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Karsanbhai Surendralal Lanca Director |
2,863 | $76.84 | 3,422 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 12:55 pm |
N/A N/A |
Merck & Co. Inc. | MRK | GLOCER THOMAS H Director |
2,863 | $76.84 | 108,525 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 12:53 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Craig Pamela J. Director |
2,863 | $76.84 | 33,706 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 12:51 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Coe Mary Ellen Director |
2,863 | $76.84 | 27,683 (Direct) |
View |
2025-05-30 Option Award |
2025-06-03 12:49 pm |
N/A N/A |
Merck & Co. Inc. | MRK | BAKER DOUGLAS M JR Director |
2,863 | $76.84 | 25,344 (Direct) |
View |
2025-05-03 Exercise |
2025-05-05 4:23 pm |
2024-05-03 2025-05-03 |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
2,050 | $0 | 9,539 (Direct) |
View |
2025-05-03 Exercise |
2025-05-05 4:23 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
2,050 | $83.18 | 9,539 (Direct) |
View |
2025-05-03 Tax Withholding |
2025-05-05 4:23 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
844 | $83.18 | 9,539 (Direct) |
View |
2025-04-30 Exercise |
2025-05-02 4:18 pm |
2025-04-30 2027-04-30 |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
845 | $0 | 9,645 (Direct) |
View |
2025-05-02 Tax Withholding |
2025-05-02 4:18 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
131 | $83.26 | 9,645 (Direct) |
View |
2025-04-30 Exercise |
2025-05-02 4:18 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
464 | $84.71 | 9,645 (Direct) |
View |
2025-04-30 Tax Withholding |
2025-05-02 4:18 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
159 | $84.71 | 9,645 (Direct) |
View |
2025-05-02 Exercise |
2025-05-02 4:18 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
381 | $83.26 | 9,645 (Direct) |
View |
2025-04-30 Exercise |
2025-05-02 4:14 pm |
2025-04-30 2027-04-30 |
Merck & Co. Inc. | MRK | Romanelli Joseph President, Human Health Int?l |
4,325 | $0 | 29,336 (Direct) |
View |
2025-05-02 Tax Withholding |
2025-05-02 4:14 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Romanelli Joseph President, Human Health Int?l |
1,115 | $83.26 | 29,336 (Direct) |
View |
2025-04-30 Exercise |
2025-05-02 4:14 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Romanelli Joseph President, Human Health Int?l |
2,063 | $84.71 | 29,336 (Direct) |
View |
2025-04-30 Tax Withholding |
2025-05-02 4:14 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Romanelli Joseph President, Human Health Int?l |
1,017 | $84.71 | 29,336 (Direct) |
View |
2025-05-02 Exercise |
2025-05-02 4:14 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Romanelli Joseph President, Human Health Int?l |
2,262 | $83.26 | 29,336 (Direct) |
View |
2025-04-30 Exercise |
2025-05-02 4:12 pm |
2025-04-30 2027-04-30 |
Merck & Co. Inc. | MRK | Larson Betty D EVP, Chief HR Officer |
11,350 | $0 | 28,897 (Direct) |
View |
2025-04-30 Exercise |
2025-05-02 4:12 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Larson Betty D EVP, Chief HR Officer |
11,350 | $84.71 | 28,897 (Direct) |
View |
2025-04-30 Tax Withholding |
2025-05-02 4:12 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Larson Betty D EVP, Chief HR Officer |
5,153 | $84.71 | 28,897 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:19 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
9,281 | $0 | 17,059 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:15 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Litchfield Caroline EVP & CFO |
65,540 | $0 | 139,880 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:13 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Williams David Michael EVP,Chief Info&Digital Officer |
22,939 | $0 | 47,164 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:12 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Chattopadhyay Sanat Exe V-P & Pres. MMD |
43,256 | $0 | 228,584 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:10 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | DeLuca Richard R. EVP&Pres, Merck Animal Heallth |
41,945 | $0 | 223,956 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:07 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Davis Robert M Chairman, CEO & President |
221,524 | $0 | 665,126 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:06 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Oosthuizen Johannes Jacobus President, U.S. Market |
22,939 | $0 | 53,769 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:04 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Li Dean Y Executive VP & President, MRL |
78,647 | $0 | 158,828 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:03 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Zachary Jennifer EVP, General Counsel |
49,155 | $0 | 104,986 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 6:00 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Downing Cristal N Chief Comm. & Public Afrs Ofcr |
17,040 | $0 | 24,125 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 5:58 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Larson Betty D EVP, Chief HR Officer |
34,736 | $0 | 40,933 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 5:45 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Guindo Chirfi Chief Marketing Officer |
32,769 | $0 | 102,651 (Direct) |
View |
2025-04-29 Option Award |
2025-05-01 5:43 pm |
2026-04-29 2028-04-29 |
Merck & Co. Inc. | MRK | Romanelli Joseph President, Human Health Int?l |
35,660 | $0 | 57,459 (Direct) |
View |
2025-04-25 Exercise |
2025-04-29 4:04 pm |
2016-05-01 2025-04-30 |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
5,000 | $0 | 7,778 (Direct) |
View |
2025-04-25 Exercise |
2025-04-29 4:04 pm |
N/A N/A |
Merck & Co. Inc. | MRK | Smart Dalton E. III SVP Fin. - Global Controller |
5,000 | $58.08 | 7,778 (Direct) |
View |
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 |