Merck & Co., Inc.
MRK
76 insider filings · Latest: Sep 30, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| 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 → |
| Feb 4, 2026 | Feb 4 9:38 PM | DALTON SMART | Proposed Sale | 6,400 | $119.68 | $765.9K | — | View → |
| Feb 4, 2026 | Feb 4 9:29 PM | ROBERT M. DAVIS | Proposed Sale | 47,434 | $118.02 | $5.6M | — | View → |
Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | Oct 1 5:52 PM | Christine E SeidmanDirector | Grant/Award | 55.915 | — | 21,490.401(D) | View → |
| Sep 30, 2026 | Oct 1 5:50 PM | Surendralal Lanca KarsanbhaiDirector | Grant/Award | 111.83 | — | 5,667.012(D) | View → |
| Sep 30, 2026 | Oct 1 5:48 PM | Mary Ellen CoeDirector | Grant/Award | 206.455 | — | 32,419.866(D) | View → |
| Aug 12, 2026 | Aug 13 8:11 PM | Jennifer ZacharyEVP, General Counsel | Option Exercise | 54,927 | $117.89 | 0(D) | View → |
| Aug 5, 2026 | Aug 7 8:21 PM | David R. MaraldoEVP & Pres. MMD | Option Exercise | 18,706 | $87.10 | 5,374(D) | View → |
| Aug 5, 2026 | Aug 7 8:19 PM | David Michael WilliamsEVP,Chief Info&Digital Officer | Option Exercise | 52,847 | $77.62 | 0(D) | View → |
| Jun 30, 2026 | Jul 1 12:47 PM | Christine E SeidmanDirector | Grant/Award | 63.23 | — | 21,291.269(D) | View → |
| Jun 30, 2026 | Jul 1 12:44 PM | Surendralal Lanca KarsanbhaiDirector | Grant/Award | 126.459 | — | 5,518.802(D) | View → |
| Jun 30, 2026 | Jul 1 12:41 PM | Mary Ellen CoeDirector | Grant/Award | 233.463 | — | 31,999.102(D) | View → |
| May 29, 2026 | Jun 2 8:14 PM | Kathy J WardenDirector | Grant/Award | 1,853.1 | — | 17,890.292(D) | View → |
| May 29, 2026 | Jun 2 7:31 PM | Surendralal Lanca KarsanbhaiDirector | Grant/Award | 1,853.1 | — | 5,392.343(D) | View → |
| May 29, 2026 | Jun 2 6:26 PM | Mary Ellen CoeDirector | Grant/Award | 1,853.1 | — | 31,765.639(D) | View → |
| May 29, 2026 | Jun 2 6:21 PM | Inge G ThulinDirector | Grant/Award | 1,853.1 | — | 27,469.711(D) | View → |
| May 29, 2026 | Jun 2 6:19 PM | Christine E SeidmanDirector | Grant/Award | 1,853.1 | — | 21,228.039(D) | View → |
| May 29, 2026 | Jun 2 6:17 PM | Patricia F RussoDirector | Grant/Award | 1,853.1 | — | 62,390.752(D) | View → |
| May 29, 2026 | Jun 2 6:14 PM | Paul RothmanDirector | Grant/Award | 1,853.1 | — | 34,944.942(D) | View → |
| May 29, 2026 | Jun 2 6:11 PM | Stephen MayoDirector | Grant/Award | 1,853.1 | — | 14,824.52(D) | View → |
| May 29, 2026 | Jun 2 6:09 PM | Risa J Lavizzo-MoureyDirector | Grant/Award | 1,853.1 | — | 17,749.352(D) | View → |
| May 29, 2026 | Jun 2 6:05 PM | Thomas H GlocerDirector | Grant/Award | 1,853.1 | — | 110,911.759(D) | View → |
| May 29, 2026 | Jun 2 6:03 PM | Pamela J. CraigDirector | Grant/Award | 1,853.1 | — | 34,944.93(D) | View → |
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