CHATTOPADHYAY SANAT

PrivateCIK: 1670690
Location

RAHWAY, NJ

CHATTOPADHYAY SANAT (Exe V-P & Pres. MMD) exercised options at MERCK & CO., INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderCHATTOPADHYAY SANATCIK 1670690
IssuerMERCK & CO., INC.CIK 310158
Officer· Exe V-P & Pres. MMD
Since Aug 2018
-1.13K
Net shares
Net seller
$124.3K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
2.60K acquired · 3.73K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+2.60K

Price / share

$110.03

Trade value

$285.75K

% of position

18.7%
4/29/2026
13.88K16.48K

Common Stock

Direct
F · Tax Withholding

Shares

1.13K

Price / share

$110.03

Trade value

$124.33K

% of position

6.9%
4/29/2026
16.48K15.35K
Total

Net shares

+1.47K

Net value

$161.41K

Derivative Transactions1

Restricted Stock Unit

Direct
M · Option Exercise
Converts to

Common Stock

2.60K shares

Shares

2.60K

Strike price

Held after

5.19K

Exercisable

4/29/2026
Non-Derivative Holdings (Post-Transaction)3

Common Stock

Indirect
Shares owned53.42K

Common Stock

Indirect
Shares owned74.29K

Common Stock

Indirect
Shares owned57.62K
Total
185.33K indirect185.33K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
CHATTOPADHYAY SANAT — Insider Transaction (Form 4) Filed May 1, 2026 | Finecho