Form 4 Tracker
Merck & Co., Inc.
MRK

66 insider filings · Latest: Jun 30, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Feb 4, 2026Feb 4 9:38 PMDALTON SMART
Proposed Sale
6,400$119.68$765.9K

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Feb 4, 2026Feb 4 9:29 PMROBERT M. DAVIS
Proposed Sale
47,434$118.02$5.6M

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Feb 4, 2026Feb 4 9:27 PMDEAN LI
Proposed Sale
15,087$118.77$1.8M

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Feb 4, 2026Feb 4 9:26 PMCAROLINE A LITCHFIELD
Proposed Sale
41,997$119.61$5.0M

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Nov 10, 2025Nov 10 9:07 PMCRISTAL DOWNING
Proposed Sale
7,085$87.00$616.4K

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Nov 3, 2025Nov 3 9:09 PMDAVID WILLIAMS
Proposed Sale
8,614$83.59$720.0K

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Apr 25, 2025Apr 25 8:05 PMDALTON SMART
Proposed Sale
4,262$82.76$352.7K

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Feb 19, 2025Feb 19 10:09 PMJOHANNES JACOBUS OOSTHUIZEN
Proposed Sale
8,500$84.09$714.7K

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Feb 13, 2025Feb 13 9:10 PMDAVID WILLIAMS
Proposed Sale
6,000$85.34$512.1K

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Feb 6, 2025Feb 6 9:43 PMCRISTAL DOWNING
Proposed Sale
2,361$88.76$209.6K

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
May 5, 2026May 7 3:56 PMRichard R. DelucaEVP&Pres, Merck Animal Heallth
Grant/Award
46,855$113.1534,924(D)

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May 5, 2026May 7 3:52 PMRobert M DavisDirector, Chairman, CEO & President
Grant/Award
187,421$113.15139,697(D)

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May 5, 2026May 7 3:48 PMBrian FoardEVP, Specialty, Pharma, & ID
Grant/Award
77,000$113.1531,044(D)

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May 5, 2026May 7 3:45 PMDavid R. MaraldoEVP & Pres. MMD
Grant/Award
29,155$113.1521,731(D)

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May 5, 2026May 7 3:42 PMJohannes Jacobus OosthuizenEVP, Oncology & Int?l
Grant/Award
41,649$113.1531,044(D)

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May 5, 2026May 7 3:39 PMDalton E. Smart IIISVP Fin. - Global Controller
Grant/Award
7,343$113.155,045(D)

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May 5, 2026May 7 3:36 PMChirfi GuindoEVP, Access, Policy & Comms
Grant/Award
26,030$113.1519,402(D)

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May 2, 2026May 5 5:51 PMDalton E. Smart IIISVP Fin. - Global Controller
Option Exercise
3830(D)

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May 2, 2026May 5 5:47 PMDavid R. MaraldoEVP & Pres. MMD
Option Exercise
5520(D)

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Apr 29, 2026May 1 10:54 PMChirfi GuindoEVP, Access, Policy & Comms
Option Exercise
1,9673,935(D)

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Apr 29, 2026May 1 10:32 PMSanat ChattopadhyayExe V-P & Pres. MMD
Option Exercise
2,5975,194(D)

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Apr 29, 2026May 1 10:20 PMRichard R. DelucaEVP&Pres, Merck Animal Heallth
Option Exercise
2,5185,037(D)

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Apr 29, 2026May 1 9:56 PMDavid Michael WilliamsEVP,Chief Info&Digital Officer
Option Exercise
1,3772,755(D)

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Apr 30, 2026May 1 9:55 PMDalton E. Smart IIISVP Fin. - Global Controller
Option Exercise
464465(D)

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Apr 29, 2026May 1 9:55 PMDalton E. Smart IIISVP Fin. - Global Controller
Option Exercise
9441,889(D)

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Apr 29, 2026May 1 9:45 PMDean Y LiExecutive VP & President, MRL
Option Exercise
4,7229,444(D)

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Apr 29, 2026May 1 9:43 PMJennifer ZacharyEVP, General Counsel
Option Exercise
2,9515,903(D)

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Apr 30, 2026May 1 9:42 PMBetty D LarsonEVP, Chief HR Officer
Option Exercise
11,35011,350(D)

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Apr 29, 2026May 1 9:42 PMBetty D LarsonEVP, Chief HR Officer
Option Exercise
2,0854,172(D)

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Apr 29, 2026May 1 9:39 PMCaroline LitchfieldEVP & CFO
Option Exercise
3,9357,870(D)

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