Insider NameBuy/SellAmountShares Change
Apr 25, 2025Apr 29, 2025Smart Dalton E. III
SVP Fin. - Global Controller
Sell$82.76$352,723-35.40%
Feb 19, 2025Feb 20, 2025Oosthuizen Johannes Jacobus
Pres
U.S. Market
Sell$84.09$714,745-21.68%
Feb 13, 2025Feb 13, 2025Williams David Michael
EVP
Chief Info
Digital Office
Sell$85.34$512,057-19.92%
Feb 06, 2025Feb 07, 2025Thulin Inge G
Dir
Buy$88.25$250,000+49.13%
Feb 06, 2025Feb 07, 2025Downing Cristal N
Chief Comm.
Public Afrs Ofcr
Sell$88.76$209,551-24.99%
Feb 05, 2025Feb 07, 2025Baker Douglas M Jr
Dir
Buy$88.5$1M+48.39%
Feb 14, 2024Feb 15, 2024Litchfield Caroline
EVP
CFO
Sell$125.5$5M-42.93%
Feb 13, 2024Feb 15, 2024Davis Robert M
COB
CEO
Pres
Sell$125.69$30M-40.29%
Feb 13, 2024Feb 14, 2024Romanelli Joseph
Pres
Human Health Int?l
Sell$124.89$124,888-4.86%
Feb 09, 2024Feb 12, 2024Li Dean Y
EVP
Pres
MRL
Sell$125.5$2M-24.12%
Feb 07, 2024Feb 08, 2024Williams David Michael
EVP
Chief Info
Digital Office
Sell$127.57$185,108-6.82%
Feb 02, 2024Feb 05, 2024Oosthuizen Johannes Jacobus
Pres
U.S. Market
Sell$127.18$2M-44.84%
Feb 02, 2024Feb 02, 2024Mizell Steven
EVP
CHRO
Sell$126.65$6M-68.22%
Feb 02, 2024Feb 02, 2024Zachary Jennifer
EVP
GC
Sell$126.97$6M-63.01%
Nov 09, 2023Nov 13, 2023Oosthuizen Johannes Jacobus
Pres
U.S. Market
Sell$102.38$213,061-10.27%
Nov 08, 2023Nov 09, 2023Deluca Richard R.
EVP
Pres
Merck Animal Heallt
Sell$105.03$5M-27.95%
Aug 14, 2023Aug 15, 2023Mizell Steven
EVP
CHRO
Sell$109.01$463,293-15.63%
Aug 03, 2023Aug 04, 2023Mizell Steven
EVP
CHRO
Sell$105.49$474,701-14.20%
Aug 02, 2023Aug 03, 2023Romanelli Joseph
Pres
Human Health Int?l
Sell$107.37$9,556-0.43%
Dec 02, 2022Jun 30, 2023Romanelli Joseph
Pres
Human Health Int?l
Buy$108.4$44,336+1.94%
May 03, 2023May 05, 2023Mizell Steven
EVP
CHRO
Sell$119.01$6M-62.76%
May 04, 2023May 05, 2023Zachary Jennifer
EVP
GC
Sell$117.59$2M-35.27%
May 04, 2023May 05, 2023Karachun Rita A
SVP Fince-Global Controller
Sell$117.53$2M-25.78%
May 02, 2023May 03, 2023Williams David Michael
EVP
Chief Info
Digital Office
Sell$116.82$877,222-40.44%
Apr 28, 2023May 02, 2023Deluca Richard R.
EVP
Pres
Merck Animal Heallt
Sell$115.55$16M-47.63%
Apr 28, 2023Apr 28, 2023Davis Robert M
COB
CEO
Pres
Sell$114.93$16M-34.52%
Apr 13, 2023Apr 14, 2023Chattopadhyay Sanat
Exe V-P
Pres MMD
Sell$115.07$15M-50.68%
Feb 15, 2023Feb 16, 2023Romanelli Joseph
Pres
Human Health Int?l
Sell$108.22$541,101-19.78%
Feb 13, 2023Feb 14, 2023Mizell Steven
EVP
CHRO
Sell$109.1$198,017-5.20%
Feb 09, 2023Feb 10, 2023Mizell Steven
EVP
CHRO
Sell$107$535,007-12.53%
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