Merck & Co., Inc.
MRK
73 insider filings · Latest: Aug 13, 2026
Common Stock Transactions
| Txn Date | Accepted | Insider | Type | Shares | Avg Price | Value | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | Aug 13 9:02 PM | Chirfi GuindoEVP, Access, Policy & Comms | Sale | 10,000 | $135.00 | $1.4M | 36,613.127(D) | View → |
| Aug 13, 2026 | Aug 13 8:15 PM | CHIRFI GUINDO | Proposed Sale | 10,000 | $135.00 | $1.4M | — | View → |
| Aug 12, 2026 | Aug 13 8:11 PM | Jennifer ZacharyEVP, General Counsel | Sale | 80,315 | $133.46 | $10.7M | 45,509.254(D) | View → |
| Aug 12, 2026 | Aug 12 8:23 PM | RICHARD ROBERT DELUCA JR | Proposed Sale | 11,699 | $131.63 | $1.5M | — | View → |
| Aug 12, 2026 | Aug 12 8:19 PM | JENNIFER L ZACHARY | Proposed Sale | 80,315 | $133.46 | $10.7M | — | View → |
| Aug 12, 2026 | Aug 12 8:10 PM | Richard R. DelucaEVP&Pres, Merck Animal Heallth | Sale | 11,699 | $131.63 | $1.5M | 110,167.07(D) | View → |
| Aug 11, 2026 | Aug 12 8:10 PM | Richard R. DelucaEVP&Pres, Merck Animal Heallth | Sale | 12,837 | $131.76 | $1.7M | 121,866.07(D) | View → |
| Aug 10, 2026 | Aug 12 8:10 PM | Richard R. DelucaEVP&Pres, Merck Animal Heallth | Sale | 20,784 | $130.43 | $2.7M | 134,703.07(D) | View → |
| Aug 11, 2026 | Aug 11 8:14 PM | RICHARD ROBERT DELUCA JR | Proposed Sale | 12,837 | $131.76 | $1.7M | — | View → |
| Aug 10, 2026 | Aug 10 8:43 PM | RICHARD ROBERT DELUCA JR | Proposed Sale | 20,784 | $130.43 | $2.7M | — | View → |
| Aug 6, 2026 | Aug 10 8:28 PM | Richard R. DelucaEVP&Pres, Merck Animal Heallth | Sale | 6,050 | $130.38 | $788.8K | 155,487.07(D) | View → |
| Aug 5, 2026 | Aug 7 8:21 PM | David R. MaraldoEVP & Pres. MMD | Sale | 18,706 | $128.72 | $2.4M | 18,212.434(D) | View → |
| Aug 5, 2026 | Aug 7 8:19 PM | David Michael WilliamsEVP,Chief Info&Digital Officer | Sale | 52,847 | $128.77 | $6.8M | 31,716.037(D) | View → |
| Aug 6, 2026 | Aug 7 8:17 PM | Chirfi GuindoEVP, Access, Policy & Comms | Sale | 15,000 | $131.00 | $2.0M | 46,613.127(D) | View → |
| Aug 6, 2026 | Aug 6 8:47 PM | CHIRFI GUINDO | Proposed Sale | 15,000 | $131.00 | $2.0M | — | View → |
| Aug 6, 2026 | Aug 6 8:45 PM | RICHARD ROBERT DELUCA JR | Proposed Sale | 6,050 | $130.38 | $788.8K | — | View → |
| Aug 5, 2026 | Aug 5 8:27 PM | DAVID M WILLIAMS | Proposed Sale | 52,847 | $128.77 | $6.8M | — | View → |
| Aug 5, 2026 | Aug 5 8:26 PM | DAVID MARALDO | Proposed Sale | 18,706 | $128.72 | $2.4M | — | View → |
| 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 → |
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Stock Options & Derivatives
| Txn Date | Accepted | Insider | Type | Shares | Exercise Price | Shares Owned | Filing |
|---|---|---|---|---|---|---|---|
| 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 → |
| May 29, 2026 | Jun 2 5:57 PM | Douglas M Baker JRDirector | Grant/Award | 1,853.1 | — | 11,518.208(D) | View → |
| May 5, 2026 | May 7 4:18 PM | Jennifer ZacharyEVP, General Counsel | Grant/Award | 47,376 | $113.15 | 35,312(D) | View → |
| May 5, 2026 | May 7 4:14 PM | David Michael WilliamsEVP,Chief Info&Digital Officer | Grant/Award | 18,222 | $113.15 | 13,582(D) | View → |
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