24 transactions on file, per SEC Form 4 filings.
See MRK superinvestor activity →Guindo Chirfi
EVP, Access, Policy & Comms · 2026-08-13
Sold
$1.4M
Zachary Jennifer
EVP, General Counsel · 2026-08-12
Option exercise
$1.1M
Zachary Jennifer
EVP, General Counsel · 2026-08-12
Option exercise
$4.9M
Zachary Jennifer
EVP, General Counsel · 2026-08-12
Sold
$10.7M
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-12
Sold
$1.5M
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-12
Sold
$79K
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-11
Sold
$973K
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-11
Sold
$718K
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-10
Sold
$2.7M
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-06
Sold
$105K
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-06
Sold
$644K
DeLuca Richard R.
EVP&Pres, Merck Animal Heallth · 2026-08-06
Sold
$39K
Guindo Chirfi
EVP, Access, Policy & Comms · 2026-08-06
Sold
$2.0M
Maraldo David R.
EVP & Pres. MMD · 2026-08-05
Option exercise
$846K
Maraldo David R.
EVP & Pres. MMD · 2026-08-05
Option exercise
$465K
Maraldo David R.
EVP & Pres. MMD · 2026-08-05
Option exercise
$228K
Maraldo David R.
EVP & Pres. MMD · 2026-08-05
Sold
$346K
Williams David Michael
EVP,Chief Info&Digital Officer · 2026-08-05
Option exercise
$2.6M
Williams David Michael
EVP,Chief Info&Digital Officer · 2026-08-05
Option exercise
$1.0M
Williams David Michael
EVP,Chief Info&Digital Officer · 2026-08-05
Option exercise
$357K
Williams David Michael
EVP,Chief Info&Digital Officer · 2026-08-05
Sold
$4.5M
Seidman Christine E
director · 2026-06-30
Award
63.23 sh
Karsanbhai Surendralal Lanca
director · 2026-06-30
Award
126.459 sh
Coe Mary Ellen
director · 2026-06-30
Award
233.463 sh
Each row links to the underlying SEC filing. Sells are shown for transparency, not as a signal — see the insider trading article for why.
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