GUINDO CHIRFI

PrivateCIK: 1722753
Location

CAMBRIDGE, MA

GUINDO CHIRFI (Chief Marketing Officer) sold 24.3% of their position (15K shares) of MERCK & CO., INC. on the open market

Open‑market sale worth $1.97M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderGUINDO CHIRFICIK 1722753
IssuerMERCK & CO., INC.CIK 310158
Officer· Chief Marketing Officer
Since Jul 2022
-15K
Net shares
Net seller
$1.97M
Total sold
1
Open market trades
0B · 1S
1
Total transactions
15K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

15K

Price / share

$131.00

Trade value

$1.97M

% of position

24.3%
8/6/2026
61.61K46.61K
Total

Net shares

15K

Net value

-$1.97M

Derivative Transactions0
No derivative transactions reported