MarketPeel
Insider Trading Intelligence
Pricing
…
Chief Scientific Officer
Kastelein Johannes Jacob Pieter
Fri, Aug 22, 2025
Aug 22
sold
$1.06m
of
NAMS
42,342
shares @ $25.08
Decreased holdings by
-35.50%
7th largest trade (out of 28)
Large Trade
Trade made by an officer
Unscheduled trade
Price 18% above 200-day moving average
NAMS
NewAmsterdam Pharma Co N.V.
Healthcare
Biotechnology
1D
0.00%
1W
+4.78%
1M
+6.61%
3M
—
6M
—
1Y
—
Recent insider activity at NAMS
Jun 22
Kooij Louise Frederika
Sold
$1.20m
Jun 22
Kooij Louise Frederika
Sold
$9.22k
May 26
Kooij Louise Frederika
Sold
$2.32m
Mar 11
LANGE LOUIS G
Sold
$13.93k
Mar 11
LANGE LOUIS G
Sold
$1.34m
Mar 9
Kastelein Johannes Jacob Pieter
Sold
$3.07m
Mar 6
Kastelein Johannes Jacob Pieter
Sold
$2.85m
Mar 6
LANGE LOUIS G
Sold
$828.95k
Full NAMS profile →
Kastelein Johannes Jacob Pieter’s trading history →
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