InsiderTrades

Chattopadhyay Sanat

SEC CIK 1670690 · EDGAR

Buying vs selling by month open-market trades, last 60 months, MRK
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
MRKMerck & Co.Exe V-P, Pres. MMD 16.5K — $37.05M 152021-10-292026-04-29

Most active insiders at MRK, 12 months

#InsiderTitleBoughtSold
1 Zachary JenniferEVP, GC —$25.20M
2 DeLuca Richard R.EVP, Pres, Merck Animal Heallth —$11.29M
3 Guindo ChirfiEVP, Access, Policy, Comms —$8.15M
4 Williams David MichaelEVP, Chief Info, Digital Off —$8.13M
5 Davis Robert MCOB, CEO, Pres, Dir —$5.60M
6 Litchfield CarolineEVP, CFO —$5.02M
7 Li Dean YPres, Executive VP, MRL —$2.99M
8 Maraldo David R.EVP, Pres. MMD —$2.41M
9 Oosthuizen Johannes JacobusPres, U.S. Market —$1.83M
10 Smart Dalton E. IIISVP Fin. - Gbl Ctrl —$766.0K
13 Chattopadhyay SanatExe V-P, Pres. MMD ——

Transactions 15

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
D 2026-05-01 18:32 2026-04-29 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD M - OptEx $110.03 +2,597 16.5K +19% +$285.7K
D 2026-05-01 18:32 2026-04-29 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD F - Tax $110.03 -1,130 15.3K -7% -$124.3K
2026-01-28 2026-01-26 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD A - Grant $107.40 +13.9K 13.9K New +$1.49M
2025-01-29 2025-01-27 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD A - Grant $97.94 +28.1K 78.8K +56% +$2.76M
2024-01-24 2024-01-22 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD A - Grant $119.43 +26.7K 26.7K New +$3.19M
DM 2023-04-14 2023-04-13 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD M - OptEx $59.02 +134.1K 67.9K New +$7.91M
DM 2023-04-14 2023-04-13 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD S - Sale+OE $115.07 -134.1K 67.9K -66% -$15.43M
2023-01-25 2023-01-23 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD A - Grant $109.88 +17.5K 47.0K +59% +$1.92M
DM 2023-01-11 2023-01-09 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD S - Sale+OE $112.29 -84.0K 69.4K -55% -$9.43M
D 2023-01-11 2023-01-09 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD M - OptEx $53.06 +84.0K 113.5K +285% +$4.46M
DM 2022-11-01 2022-10-28 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD M - OptEx $0.00 +100.3K 145.9K +220% $0
D 2022-11-01 2022-10-28 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD S - Sale+OE $100.10 -100.3K 45.6K -69% -$10.04M
2022-02-28 2022-02-24 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD A - Grant $73.51 +19.8K 113.0K +21% +$1.46M
D 2021-11-02 2021-10-29 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD S - Sale+OE $87.32 -24.6K 93.1K -21% -$2.15M
D 2021-11-02 2021-10-29 MRK Merck & Co. Chattopadhyay Sanat Exe V-P, Pres. MMD M - OptEx $0.00 +24.6K 117.8K +26% $0

Purchase Sale Sale after option exercise All abbreviations