Merck & Co., Inc.
MRK
66 insider filings · Latest: Jun 30, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Feb 9, 2026 | Feb 13 9:15 PM | CHIRFI GUINDO | Proposed Sale | 20,000 | $118.41 | $2.4M | — | View → |
| Feb 12, 2026 | Feb 12 9:02 PM | Chirfi GuindoChief Marketing Officer | Sale | 10,000 | $121.46 | $1.2M | 60,615.127(D) | View → |
| Feb 10, 2026 | Feb 10 9:38 PM | DEAN LI | Proposed Sale | 10,235 | $117.52 | $1.2M | — | View → |
| Feb 10, 2026 | Feb 10 9:04 PM | Dean Y LiExecutive VP & President, MRL | Sale | 10,235 | $117.52 | $1.2M | 92,035.05(D) | View → |
| Feb 9, 2026 | Feb 9 9:57 PM | JENNIFER ZACHARY | Proposed Sale | 121,573 | $119.15 | $14.5M | — | View → |
| Feb 9, 2026 | Feb 9 9:55 PM | CHIRFI GUINDO | Proposed Sale | 20,000 | $118.41 | $2.4M | — | View → |
| Feb 9, 2026 | Feb 9 9:04 PM | Chirfi GuindoChief Marketing Officer | Sale | 10,000 | $118.41 | $1.2M | 70,615.127(D) | View → |
| Feb 9, 2026 | Feb 9 9:01 PM | Jennifer ZacharyEVP, General Counsel | Sale | 121,573 | $119.15 | $14.5M | 68,915.671(D) | View → |
| Feb 6, 2026 | Feb 6 9:35 PM | RICHARD ROBERT DELUCA JR. | Proposed Sale | 37,685 | $120.92 | $4.6M | — | View → |
| Feb 6, 2026 | Feb 6 9:33 PM | DAVID WILLIAMS | Proposed Sale | 5,000 | $121.91 | $609.5K | — | View → |
| Feb 6, 2026 | Feb 6 9:20 PM | David Michael WilliamsEVP,Chief Info&Digital Officer | Sale | 5,000 | $121.91 | $609.5K | 30,837.743(D) | View → |
| Feb 6, 2026 | Feb 6 9:19 PM | JOHANNES JACOBUS OOSTHUIZEN | Proposed Sale | 15,000 | $121.87 | $1.8M | — | View → |
| Feb 4, 2026 | Feb 6 9:18 PM | Dalton E. Smart IIISVP Fin. - Global Controller | Sale | 6,400 | $119.68 | $765.9K | 8,204.816(D) | View → |
| Feb 6, 2026 | Feb 6 9:15 PM | Johannes Jacobus OosthuizenPresident, U.S. Market | Sale | 15,000 | $121.87 | $1.8M | 21,197.389(D) | View → |
| Feb 4, 2026 | Feb 6 9:13 PM | Caroline LitchfieldEVP & CFO | Sale | 41,997 | $119.61 | $5.0M | 90,192.194(D) | View → |
| Feb 4, 2026 | Feb 6 9:12 PM | Dean Y LiExecutive VP & President, MRL | Sale | 15,087 | $118.77 | $1.8M | 102,270.05(D) | View → |
| Feb 5, 2026 | Feb 6 9:10 PM | Chirfi GuindoChief Marketing Officer | Sale | 20,000 | $121.88 | $2.4M | 80,615.127(D) | View → |
| Feb 6, 2026 | Feb 6 9:08 PM | Richard R. DelucaEVP&Pres, Merck Animal Heallth | Sale | 37,685 | $120.92 | $4.6M | 160,173.834(D) | View → |
| Feb 4, 2026 | Feb 6 9:05 PM | Robert M DavisDirector, Chairman, CEO & President | Sale | 47,434 | $118.04 | $5.6M | 443,601.757(D) | View → |
| Feb 5, 2026 | Feb 5 9:25 PM | CHIRFI GUINDO | Proposed Sale | 20,000 | $121.88 | $2.4M | — | View → |
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Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Apr 29, 2026 | May 1 9:38 PM | Robert M DavisDirector, Chairman, CEO & President | Option Exercise | 13,300 | — | 26,601(D) | View → |
| Apr 29, 2026 | May 1 9:34 PM | Johannes Jacobus OosthuizenEVP, Oncology & Int?l | Option Exercise | 1,377 | — | 2,755(D) | View → |
| Mar 31, 2026 | Apr 1 5:47 PM | Christine E SeidmanDirector | Grant/Award | 67.545 | — | 19,238.328(D) | View → |
| Mar 31, 2026 | Apr 1 5:44 PM | Thomas H GlocerDirector | Grant/Award | 405.271 | — | 108,293.493(D) | View → |
| Mar 31, 2026 | Apr 1 5:42 PM | Mary Ellen CoeDirector | Grant/Award | 249.397 | — | 29,702.652(D) | View → |
| Feb 9, 2026 | Feb 9 9:01 PM | Jennifer ZacharyEVP, General Counsel | Option Exercise | 121,573 | $87.10 | 0(D) | View → |
| Feb 6, 2026 | Feb 6 9:20 PM | David Michael WilliamsEVP,Chief Info&Digital Officer | Option Exercise | 5,000 | — | 4,600(D) | View → |
| Feb 4, 2026 | Feb 6 9:18 PM | Dalton E. Smart IIISVP Fin. - Global Controller | Option Exercise | 4,000 | $62.07 | 8,130(D) | View → |
| Feb 4, 2026 | Feb 6 9:13 PM | Caroline LitchfieldEVP & CFO | Option Exercise | 41,997 | — | 0(D) | View → |
| Feb 4, 2026 | Feb 6 9:12 PM | Dean Y LiExecutive VP & President, MRL | Option Exercise | 15,087 | — | 0(D) | View → |
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