OOSTHUIZEN JOHANNES JACOBUS

PrivateCIK: 1916310
Location

RAHWAY, NJ

OOSTHUIZEN JOHANNES JACOBUS (SVP, U.S. Market) sold 41.4% of their position (15K shares) of MERCK & CO., INC. on the open market

Open‑market sale worth $1.83M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderOOSTHUIZEN JOHANNES JACOBUSCIK 1916310
IssuerMERCK & CO., INC.CIK 310158
Officer· SVP, U.S. Market
Since Feb 2022
-15K
Net shares
Net seller
$1.83M
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

$121.87

Trade value

$1.83M

% of position

41.4%
2/6/2026
36.20K21.20K
Total

Net shares

15K

Net value

-$1.83M

Derivative Transactions0
No derivative transactions reported
OOSTHUIZEN JOHANNES JACOBUS — Insider Transaction (Form 4) Filed Feb 6, 2026 | Finecho