← Insider Trading (US)

Johannes Jacob Pieter Kastelein

Insider at NAMS
Data refreshed: Oct 11, 2026, 11:42 PM UTC
Total filings
4
Buys
0
$0
Sells
2
$4.6M
Grants & other
0
$0

Recent filings

NAMSOTHER
Newamsterdam Pharma CO N.v.
Oct 2, 202650,246 sh · —
NAMSSELL
Newamsterdam Pharma CO N.v.
Oct 2, 202650,246 sh · $1.3M
NAMSSELL
Newamsterdam Pharma CO N.v.
Aug 25, 2026125,000 sh · $3.4M
NAMSOTHER
Newamsterdam Pharma CO N.v.
Aug 25, 2026125,000 sh · —