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Merck & Co., Inc.
MRKNYSECIK: 0000310158
Recent Form 4 activity at Merck & Co., Inc. (MRK) spans 50 filings across 25 insiders (all of them on the sell side). Purchases total $0 against $30.0M in sales — heavily weighted toward selling, for net sales of $30.0M. Zachary Jennifer (EVP, General Counsel) is the most active by dollar volume, and the single largest transaction was $22.8M by Zachary Jennifer. All figures are drawn from official SEC Form 3, 4, and 5 disclosures and update as new filings arrive.
Total Volume
$109.6M
Purchases
$0
Sales
$30.0M
Unique Insiders
25
Recent Insider Trades
50 loaded
| Aug 13 | MRK Merck & Co., Inc. | Guindo Chirfi | EVP, Access, Policy & Comms | Sell | $1.4M |
| Aug 13 | MRK Merck & Co., Inc. | Zachary Jennifer | EVP, General Counsel | Sell | $10.7M |
| Aug 12 | MRK Merck & Co., Inc. | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | $5.9M |
| Aug 7 | MRK Merck & Co., Inc. | Guindo Chirfi | EVP, Access, Policy & Comms | Sell | $2.0M |
| Aug 10 | MRK Merck & Co., Inc. | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Sell | $788.8K |
| Aug 7 | MRK Merck & Co., Inc. | Williams David Michael | EVP,Chief Info&Digital Officer | Sell | $6.8M |
| Aug 7 | MRK Merck & Co., Inc. | Maraldo David R. | EVP & Pres. MMD | Sell | $2.4M |
| Jul 1 | MRK Merck & Co., Inc. | Coe Mary Ellen | Director | Award | $0 |
| Jul 1 | MRK Merck & Co., Inc. | Karsanbhai Surendralal Lanca | Director | Award | $0 |
| Jul 1 | MRK Merck & Co., Inc. | Seidman Christine E | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | GLOCER THOMAS H | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | THULIN INGE G | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | BAKER DOUGLAS M JR | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | RUSSO PATRICIA F | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | Craig Pamela J. | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | Warden Kathy J | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | Seidman Christine E | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | Rothman Paul | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | LAVIZZO-MOUREY RISA J | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | Karsanbhai Surendralal Lanca | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | Coe Mary Ellen | Director | Award | $0 |
| Jun 2 | MRK Merck & Co., Inc. | Mayo Stephen | Director | Award | $0 |
| May 7 | MRK Merck & Co., Inc. | Smart Dalton E. III | SVP Fin. - Global Controller | Award | $570.8K |
| May 7 | MRK Merck & Co., Inc. | Oosthuizen Johannes Jacobus | EVP, Oncology & Int?l | Award | $3.5M |
| May 7 | MRK Merck & Co., Inc. | Zachary Jennifer | EVP, General Counsel | Award | $4.0M |
| May 7 | MRK Merck & Co., Inc. | Williams David Michael | EVP,Chief Info&Digital Officer | Award | $1.5M |
| May 7 | MRK Merck & Co., Inc. | Foard Brian | EVP, Specialty, Pharma, & ID | Award | $3.5M |
| May 7 | MRK Merck & Co., Inc. | Davis Robert M | Chairman, CEO & President, Director | Award | $15.8M |
| May 7 | MRK Merck & Co., Inc. | Li Dean Y | Executive VP & President, MRL | Award | $6.6M |
| May 7 | MRK Merck & Co., Inc. | Litchfield Caroline | EVP & CFO | Award | $5.3M |
| May 7 | MRK Merck & Co., Inc. | Maraldo David R. | EVP & Pres. MMD | Award | $2.5M |
| May 7 | MRK Merck & Co., Inc. | Guindo Chirfi | EVP, Access, Policy & Comms | Award | $2.2M |
| May 7 | MRK Merck & Co., Inc. | Larson Betty D | EVP, Chief HR Officer | Award | $2.6M |
| May 7 | MRK Merck & Co., Inc. | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Award | $4.0M |
| May 5 | MRK Merck & Co., Inc. | Maraldo David R. | EVP & Pres. MMD | Exercise | $79.7K |
| May 5 | MRK Merck & Co., Inc. | Smart Dalton E. III | SVP Fin. - Global Controller | Exercise | $57.8K |
| May 5 | MRK Merck & Co., Inc. | Maraldo David R. | EVP & Pres. MMD | Other | $0 |
| May 4 | MRK Merck & Co., Inc. | Maraldo David R. | EVP & Pres. MMD | Other | $0 |
| May 1 | MRK Merck & Co., Inc. | Chattopadhyay Sanat | Exe V-P & Pres. MMD | Exercise | $410.1K |
| May 1 | MRK Merck & Co., Inc. | Smart Dalton E. III | SVP Fin. - Global Controller | Exercise | $208.6K |
| May 1 | MRK Merck & Co., Inc. | Guindo Chirfi | EVP, Access, Policy & Comms | Exercise | $323.0K |
| May 1 | MRK Merck & Co., Inc. | DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Exercise | $413.6K |
| May 1 | MRK Merck & Co., Inc. | Williams David Michael | EVP,Chief Info&Digital Officer | Exercise | $226.2K |
| May 1 | MRK Merck & Co., Inc. | Li Dean Y | Executive VP & President, MRL | Exercise | $775.5K |
| May 1 | MRK Merck & Co., Inc. | Davis Robert M | Chairman, CEO & President, Director | Exercise | $2.2M |
| May 1 | MRK Merck & Co., Inc. | Litchfield Caroline | EVP & CFO | Exercise | $646.2K |
| May 1 | MRK Merck & Co., Inc. | Zachary Jennifer | EVP, General Counsel | Exercise | $484.7K |
| May 1 | MRK Merck & Co., Inc. | Larson Betty D | EVP, Chief HR Officer | Exercise | $2.1M |
| May 1 | MRK Merck & Co., Inc. | Oosthuizen Johannes Jacobus | EVP, Oncology & Int?l | Exercise | $226.2K |
| Apr 1 | MRK Merck & Co., Inc. | Coe Mary Ellen | Director | Award | $0 |
50 filings+