Merck & Co., Inc. insider trading
In the last twelve months insiders at Merck & Co., Inc. filed 30 open-market sales worth $60.5 million and 0 open-market purchases, on Form 4 with the SEC. The latest: Guindo Chirfi, EVP, Access, Policy & Comms, sold 10,000 shares at $135.00 on 13 August 2026, filed 13 August 2026.
| Traded | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 13 August 2026 | Guindo Chirfi | EVP, Access, Policy & Comms | Sale | 10,000 | $135.00 | $1.4 million | Form 4 |
| 12 August 2026 | Zachary Jennifer | EVP, General Counsel | Sale | 80,315 | $133.46 | $10.7 million | Form 4 |
| 12 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 11,099 | $131.61 | $1.5 million | Form 4 |
| 12 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 600 | $132.04 | $79,222 | Form 4 |
| 11 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 7,410 | $131.33 | $973,165 | Form 4 |
| 11 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 5,427 | $132.35 | $718,261 | Form 4 |
| 10 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 20,784 | $130.43 | $2.7 million | Form 4 |
| 6 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 805 | $131.02 | $105,472 | Form 4 |
| 6 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 4,945 | $130.23 | $643,993 | Form 4 |
| 6 August 2026 | Deluca Richard R. | EVP&Pres, Merck Animal Heallth | Sale | 300 | $131.02 | $39,307 | Form 4 |
| 6 August 2026 | Guindo Chirfi | EVP, Access, Policy & Comms | Sale | 15,000 | $131.00 | $2.0 million | Form 4 |
| 5 August 2026 | Maraldo David R. | EVP & Pres. MMD | Sale | 6,311 | $128.72 | $812,339 | Form 4 |
| 5 August 2026 | Maraldo David R. | EVP & Pres. MMD | Sale | 9,709 | $128.72 | $1.2 million | Form 4 |
| 5 August 2026 | Maraldo David R. | EVP & Pres. MMD | Sale | 2,686 | $128.72 | $345,736 | Form 4 |
| 5 August 2026 | Williams David Michael | EVP,Chief Info&Digital Officer | Sale | 4,600 | $128.77 | $592,345 | Form 4 |
| 5 August 2026 | Williams David Michael | EVP,Chief Info&Digital Officer | Sale | 13,542 | $128.77 | $1.7 million | Form 4 |
| 5 August 2026 | Williams David Michael | EVP,Chief Info&Digital Officer | Sale | 34,705 | $128.77 | $4.5 million | Form 4 |
| 12 February 2026 | Guindo Chirfi | Chief Marketing Officer | Sale | 10,000 | $121.46 | $1.2 million | Form 4 |
| 10 February 2026 | Li Dean Y | Executive VP & President, MRL | Sale | 10,235 | $117.52 | $1.2 million | Form 4 |
| 9 February 2026 | Guindo Chirfi | Chief Marketing Officer | Sale | 10,000 | $118.41 | $1.2 million | Form 4 |
| 9 February 2026 | Zachary Jennifer | EVP, General Counsel | Sale | 25,946 | $119.15 | $3.1 million | Form 4 |
| 9 February 2026 | Zachary Jennifer | EVP, General Counsel | Sale | 56,792 | $119.15 | $6.8 million | Form 4 |
| 9 February 2026 | Zachary Jennifer | EVP, General Counsel | Sale | 38,835 | $119.15 | $4.6 million | Form 4 |
| 6 February 2026 | Williams David Michael | EVP,Chief Info&Digital Officer | Sale | 5,000 | $121.91 | $609,525 | Form 4 |
| 6 February 2026 | Oosthuizen Johannes Jacobus | President, U.S. Market | Sale | 15,000 | $121.87 | $1.8 million | Form 4 |
| 5 February 2026 | Guindo Chirfi | Chief Marketing Officer | Sale | 20,000 | $121.88 | $2.4 million | Form 4 |
| 4 February 2026 | Smart Dalton E. Iii | SVP Fin. - Global Controller | Sale | 4,000 | $119.67 | $478,700 | Form 4 |
| 4 February 2026 | Smart Dalton E. Iii | SVP Fin. - Global Controller | Sale | 2,400 | $119.67 | $287,220 | Form 4 |
| 4 February 2026 | Litchfield Caroline | EVP & CFO | Sale | 41,997 | $119.61 | $5.0 million | Form 4 |
| 4 February 2026 | Li Dean Y | Executive VP & President, MRL | Sale | 15,087 | $118.77 | $1.8 million | Form 4 |
Open-market purchases (code P) and sales (code S) only. Option exercises, grants, tax withholding and gifts are not shown. A filing with several lines appears once per line.
Source
Form 4 filings on EDGAR for Merck & Co., Inc.: the company's filing index.
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