Insider Trades96 trades
| Date↓ | Side | Ticker↕ | Insider↕ | Role↕ | Shares↕ | Price↕ | Mkt Cap↕ | 52W High↕ | 52W Low↕ | Value↕ | % Chg↕ | Rule↕ | AI View↕ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | Sell | MRK | Chirfi Guindo | EVP, Access, Policy & Comms | 10,000 | $135.00 | $355.1B | -8.28% | +85.52% | $1.4M | -21.45% | — | Buy Now |
| Aug 12, 2026 | Sell | MRK | Jennifer Zachary | EVP, General Counsel | 135,242 | $123.84 | $355.1B | -8.28% | +85.52% | $16.7M | -8.21% | — | Buy Now |
| Aug 10, 2026 | Sell | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 45,320 | $131.12 | $355.1B | -8.28% | +85.52% | $5.9M | -6.97% | — | Buy Now |
| Aug 6, 2026 | Sell | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 6,050 | $130.38 | $355.1B | -8.28% | +85.52% | $788.8K | -1.27% | — | Buy Now |
| Aug 6, 2026 | Sell | MRK | Chirfi Guindo | EVP, Access, Policy & Comms | 15,000 | $131.00 | $355.1B | -8.28% | +85.52% | $2.0M | -24.35% | — | Buy Now |
| Aug 5, 2026 | Sell | MRK | David R. Maraldo | EVP & Pres. MMD | 37,412 | $105.48 | $355.1B | -8.28% | +85.52% | $3.9M | +0.00% | — | Buy Now |
| Aug 5, 2026 | Sell | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 105,694 | $101.63 | $355.1B | -8.28% | +85.52% | $10.7M | +0.00% | — | Buy Now |
| May 2, 2026 | Buy | MRK | Dalton E. Iii Smart | SVP Fin. - Global Controller | 515 | $112.16 | $355.1B | -8.28% | +85.52% | $57.8K | +1.35% | — | Buy Now |
| May 2, 2026 | Buy | MRK | David R. Maraldo | EVP & Pres. MMD | 711 | $112.16 | $355.1B | -8.28% | +85.52% | $79.7K | +1.09% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Dalton E. Iii Smart | SVP Fin. - Global Controller | 1,891 | $110.33 | $355.1B | -8.28% | +85.52% | $208.6K | +2.44% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Johannes Jacobus Oosthuizen | EVP, Oncology & Int?l | 2,056 | $110.03 | $355.1B | -8.28% | +85.52% | $226.2K | +1.50% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 2,056 | $110.03 | $355.1B | -8.28% | +85.52% | $226.2K | +1.05% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Chirfi Guindo | EVP, Access, Policy & Comms | 2,936 | $110.03 | $355.1B | -8.28% | +85.52% | $323.0K | +0.79% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Sanat Chattopadhyay | Exe V-P & Pres. MMD | 3,727 | $110.03 | $355.1B | -8.28% | +85.52% | $410.1K | +4.13% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 3,759 | $110.03 | $355.1B | -8.28% | +85.52% | $413.6K | +0.39% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Jennifer Zachary | EVP, General Counsel | 4,405 | $110.03 | $355.1B | -8.28% | +85.52% | $484.7K | +1.01% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Caroline Litchfield | EVP & CFO | 5,873 | $110.03 | $355.1B | -8.28% | +85.52% | $646.2K | +1.04% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Dean Y Li | Executive VP & President, MRL | 7,048 | $110.03 | $355.1B | -8.28% | +85.52% | $775.5K | +1.21% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Betty D Larson | EVP, Chief HR Officer | 19,293 | $110.82 | $355.1B | -8.28% | +85.52% | $2.1M | +13.41% | — | Buy Now |
| Apr 29, 2026 | Buy | MRK | Robert M Davis | Chairman, CEO & President | 19,851 | $110.03 | $355.1B | -8.28% | +85.52% | $2.2M | +0.73% | — | Buy Now |
| Feb 12, 2026 | Sell | MRK | Chirfi Guindo | Chief Marketing Officer | 10,000 | $121.46 | $355.1B | -8.28% | +85.52% | $1.2M | -14.16% | — | Buy Now |
| Feb 10, 2026 | Sell | MRK | Dean Y Li | Executive VP & President, MRL | 10,235 | $117.52 | $355.1B | -8.28% | +85.52% | $1.2M | -10.01% | — | Buy Now |
| Feb 9, 2026 | Sell | MRK | Chirfi Guindo | Chief Marketing Officer | 10,000 | $118.41 | $355.1B | -8.28% | +85.52% | $1.2M | -12.40% | — | Buy Now |
| Feb 9, 2026 | Sell | MRK | Jennifer Zachary | EVP, General Counsel | 243,146 | $119.15 | $355.1B | -8.28% | +85.52% | $29.0M | +0.00% | — | Buy Now |
| Feb 6, 2026 | Sell | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 10,000 | $99.76 | $355.1B | -8.28% | +85.52% | $997.6K | +0.00% | — | Buy Now |
| Feb 6, 2026 | Sell | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 15,000 | $121.87 | $355.1B | -8.28% | +85.52% | $1.8M | -41.44% | — | Buy Now |
| Feb 6, 2026 | Sell | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 37,685 | $120.92 | $355.1B | -8.28% | +85.52% | $4.6M | -19.05% | — | Buy Now |
| Feb 5, 2026 | Sell | MRK | Chirfi Guindo | Chief Marketing Officer | 20,000 | $121.88 | $355.1B | -8.28% | +85.52% | $2.4M | -19.88% | — | Buy Now |
| Feb 4, 2026 | Sell | MRK | Dalton E. Iii Smart | SVP Fin. - Global Controller | 10,400 | $97.52 | $355.1B | -8.28% | +85.52% | $1.0M | -5.46% | — | Buy Now |
| Feb 4, 2026 | Sell | MRK | Dean Y Li | Executive VP & President, MRL | 30,174 | $87.40 | $355.1B | -8.28% | +85.52% | $2.6M | +0.00% | — | Buy Now |
| Feb 4, 2026 | Sell | MRK | Robert M Davis | Chairman, CEO & President | 47,434 | $118.04 | $355.1B | -8.28% | +85.52% | $5.6M | -4.90% | — | Buy Now |
| Feb 4, 2026 | Sell | MRK | Caroline Litchfield | EVP & CFO | 83,994 | $86.34 | $355.1B | -8.28% | +85.52% | $7.3M | +0.00% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Dalton E. Iii Smart | SVP Fin. - Global Controller | 1,066 | $107.40 | $355.1B | -8.28% | +85.52% | $114.5K | +11.18% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 5,026 | $107.40 | $355.1B | -8.28% | +85.52% | $539.8K | +16.12% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Joseph Romanelli | President, Human Health Int?l | 5,703 | $107.40 | $355.1B | -8.28% | +85.52% | $612.5K | +24.76% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 6,112 | $107.40 | $355.1B | -8.28% | +85.52% | $656.4K | +24.72% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Chirfi Guindo | Chief Marketing Officer | 9,865 | $107.40 | $355.1B | -8.28% | +85.52% | $1.1M | +10.87% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Jennifer Zachary | EVP, General Counsel | 11,583 | $107.40 | $355.1B | -8.28% | +85.52% | $1.2M | +20.20% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 12,264 | $107.40 | $355.1B | -8.28% | +85.52% | $1.3M | +6.61% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Sanat Chattopadhyay | Exe V-P & Pres. MMD | 13,880 | $107.40 | $355.1B | -8.28% | +85.52% | $1.5M | — | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Caroline Litchfield | EVP & CFO | 15,852 | $107.40 | $355.1B | -8.28% | +85.52% | $1.7M | +21.32% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Dean Y Li | Executive VP & President, MRL | 20,469 | $107.40 | $355.1B | -8.28% | +85.52% | $2.2M | +25.02% | — | Buy Now |
| Jan 26, 2026 | Buy | MRK | Robert M Davis | Chairman, CEO & President | 47,434 | $107.40 | $355.1B | -8.28% | +85.52% | $5.1M | +10.69% | — | Buy Now |
| Nov 10, 2025 | Sell | MRK | Cristal N Downing | Chief Comm. & Public Afrs Ofcr | 7,085 | $87.00 | $355.1B | -8.28% | +85.52% | $616.4K | -100.00% | — | Buy Now |
| Nov 3, 2025 | Sell | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 8,614 | $83.59 | $355.1B | -8.28% | +85.52% | $720.0K | -25.95% | — | Buy Now |
| Aug 4, 2025 | Buy | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 25,551 | $79.29 | $355.1B | -8.28% | +85.52% | $2.0M | +13.21% | — | Buy Now |
| Aug 4, 2025 | Buy | MRK | Chirfi Guindo | Chief Marketing Officer | 55,078 | $79.29 | $355.1B | -8.28% | +85.52% | $4.4M | +10.53% | — | Buy Now |
| May 3, 2025 | Buy | MRK | Dalton E. Iii Smart | SVP Fin. - Global Controller | 2,894 | $83.18 | $355.1B | -8.28% | +85.52% | $240.7K | +3.36% | — | Buy Now |
| Apr 30, 2025 | Buy | MRK | Dalton E. Iii Smart | SVP Fin. - Global Controller | 1,135 | $84.06 | $355.1B | -8.28% | +85.52% | $95.4K | +1.64% | — | Buy Now |
| Apr 30, 2025 | Buy | MRK | Joseph Romanelli | President, Human Health Int?l | 6,457 | $83.95 | $355.1B | -8.28% | +85.52% | $542.1K | +2.29% | — | Buy Now |
| Apr 30, 2025 | Buy | MRK | Betty D Larson | EVP, Chief HR Officer | 16,503 | $84.71 | $355.1B | -8.28% | +85.52% | $1.4M | +18.20% | — | Buy Now |
| Apr 25, 2025 | Buy | MRK | Dalton E. Iii Smart | SVP Fin. - Global Controller | 9,262 | $69.44 | $355.1B | -8.28% | +85.52% | $643.1K | +3.87% | — | Buy Now |
| Feb 19, 2025 | Sell | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 8,500 | $84.09 | $355.1B | -8.28% | +85.52% | $714.7K | -21.68% | — | Buy Now |
| Feb 13, 2025 | Sell | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 6,000 | $85.34 | $355.1B | -8.28% | +85.52% | $512.1K | -19.92% | — | Buy Now |
| Feb 8, 2025 | Buy | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 19,406 | $87.28 | $355.1B | -8.28% | +85.52% | $1.7M | +8.44% | — | Buy Now |
| Feb 6, 2025 | Sell | MRK | Cristal N Downing | Chief Comm. & Public Afrs Ofcr | 2,361 | $88.76 | $355.1B | -8.28% | +85.52% | $209.6K | -24.99% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Dalton Smart | SVP Fin. - Global Controller | 2,586 | $97.94 | $355.1B | -8.28% | +85.52% | $253.3K | +58.40% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 8,664 | $97.94 | $355.1B | -8.28% | +85.52% | $848.6K | +36.19% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Cristal N Downing | Chief Comm. & Public Afrs Ofcr | 9,446 | $97.94 | $355.1B | -8.28% | +85.52% | $925.1K | — | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 10,246 | $97.94 | $355.1B | -8.28% | +85.52% | $1.0M | +51.55% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Caroline Litchfield | EVP & CFO | 23,432 | $97.94 | $355.1B | -8.28% | +85.52% | $2.3M | +46.03% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Jennifer Zachary | EVP, General Counsel | 25,423 | $97.94 | $355.1B | -8.28% | +85.52% | $2.5M | +85.13% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 25,438 | $97.94 | $355.1B | -8.28% | +85.52% | $2.5M | +16.57% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Sanat Chattopadhyay | Exe V-P & Pres. MMD | 28,136 | $97.94 | $355.1B | -8.28% | +85.52% | $2.8M | +55.58% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Chirfi Guindo | Chief Marketing Officer | 28,158 | $97.94 | $355.1B | -8.28% | +85.52% | $2.8M | +68.70% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Dean Y Li | Executive VP & President, MRL | 32,621 | $97.94 | $355.1B | -8.28% | +85.52% | $3.2M | +69.45% | — | Buy Now |
| Jan 27, 2025 | Buy | MRK | Robert M Davis | Chairman, CEO & President | 95,275 | $97.94 | $355.1B | -8.28% | +85.52% | $9.3M | +27.35% | — | Buy Now |
| Aug 5, 2024 | Buy | MRK | Chirfi Guindo | Chief Marketing Officer | 54,313 | $115.20 | $355.1B | -8.28% | +85.52% | $6.3M | +16.86% | — | Buy Now |
| May 4, 2024 | Buy | MRK | Michael A Klobuchar | EVP - Chief Strategy Officer | 1,324 | $127.51 | $355.1B | -8.28% | +85.52% | $168.8K | +0.95% | — | Buy Now |
| May 4, 2024 | Buy | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 1,362 | $127.51 | $355.1B | -8.28% | +85.52% | $173.7K | +0.97% | — | Buy Now |
| May 4, 2024 | Buy | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 40,486 | $127.51 | $355.1B | -8.28% | +85.52% | $5.2M | +4.58% | — | Buy Now |
| May 3, 2024 | Buy | MRK | Dalton Smart | SVP Fin. - Global Controller | 3,805 | $128.08 | $355.1B | -8.28% | +85.52% | $487.3K | +6.01% | — | Buy Now |
| May 2, 2024 | Buy | MRK | Dalton Smart | SVP Fin. - Global Controller | 512 | $128.80 | $355.1B | -8.28% | +85.52% | $65.9K | +1.68% | — | Buy Now |
| May 2, 2024 | Buy | MRK | Joseph Romanelli | President, Human Health Int?l | 3,377 | $128.80 | $355.1B | -8.28% | +85.52% | $435.0K | +1.52% | — | Buy Now |
| Feb 14, 2024 | Sell | MRK | Caroline Litchfield | EVP & CFO | 76,582 | $91.79 | $355.1B | -8.28% | +85.52% | $7.0M | +0.00% | — | Buy Now |
| Feb 13, 2024 | Sell | MRK | Joseph Romanelli | President, Human Health Int?l | 1,000 | $124.89 | $355.1B | -8.28% | +85.52% | $124.9K | -4.86% | — | Buy Now |
| Feb 13, 2024 | Sell | MRK | Robert M Davis | Chairman, CEO & President | 470,042 | $99.85 | $355.1B | -8.28% | +85.52% | $46.9M | +0.00% | — | Buy Now |
| Feb 9, 2024 | Sell | MRK | Dean Y Li | Executive VP & President, MRL | 29,404 | $93.78 | $355.1B | -8.28% | +85.52% | $2.8M | +0.00% | — | Buy Now |
| Feb 7, 2024 | Sell | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 1,451 | $127.57 | $355.1B | -8.28% | +85.52% | $185.1K | -6.82% | — | Buy Now |
| Feb 2, 2024 | Buy | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 39,896 | $101.79 | $355.1B | -8.28% | +85.52% | $4.1M | +1.33% | — | Buy Now |
| Feb 2, 2024 | Sell | MRK | Jennifer Zachary | EVP, General Counsel | 68,916 | $115.74 | $355.1B | -8.28% | +85.52% | $8.0M | -17.04% | — | Buy Now |
| Feb 2, 2024 | Sell | MRK | Steven Mizell | EVP, Chief HR Officer | 83,688 | $105.76 | $355.1B | -8.28% | +85.52% | $8.9M | -9.84% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Dalton Smart | SVP Fin. - Global Controller | 2,661 | $119.43 | $355.1B | -8.28% | +85.52% | $317.8K | +42610.09% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 3,133 | $119.43 | $355.1B | -8.28% | +85.52% | $374.2K | +17.20% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Michael A Klobuchar | EVP - Chief Strategy Officer | 3,896 | $119.43 | $355.1B | -8.28% | +85.52% | $465.3K | +20.29% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | David Michael Williams | EVP,Chief Info&Digital Officer | 10,196 | $119.43 | $355.1B | -8.28% | +85.52% | $1.2M | +92.13% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Steven Mizell | EVP, Chief HR Officer | 18,384 | $119.43 | $355.1B | -8.28% | +85.52% | $2.2M | +80.16% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Caroline Litchfield | EVP & CFO | 19,208 | $119.43 | $355.1B | -8.28% | +85.52% | $2.3M | +60.59% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 23,296 | $119.43 | $355.1B | -8.28% | +85.52% | $2.8M | +20.71% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Jennifer Zachary | EVP, General Counsel | 23,298 | $119.43 | $355.1B | -8.28% | +85.52% | $2.8M | +65.00% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Dean Y Li | Executive VP & President, MRL | 25,760 | $119.43 | $355.1B | -8.28% | +85.52% | $3.1M | +125.77% | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Sanat Chattopadhyay | Exe V-P & Pres. MMD | 26,716 | $119.43 | $355.1B | -8.28% | +85.52% | $3.2M | — | — | Buy Now |
| Jan 22, 2024 | Buy | MRK | Robert M Davis | Chairman, CEO & President | 76,510 | $119.43 | $355.1B | -8.28% | +85.52% | $9.1M | +28.15% | — | Buy Now |
| Nov 9, 2023 | Sell | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 2,081 | $102.38 | $355.1B | -8.28% | +85.52% | $213.1K | -10.27% | — | Buy Now |
| Nov 8, 2023 | Sell | MRK | Richard R. Deluca | EVP&Pres, Merck Animal Heallth | 43,823 | $105.03 | $355.1B | -8.28% | +85.52% | $4.6M | -28.17% | — | Buy Now |
| Oct 30, 2023 | Buy | MRK | Johannes Jacobus Oosthuizen | President, U.S. Market | 1,366 | $102.82 | $355.1B | -8.28% | +85.52% | $140.5K | +1.14% | — | Buy Now |