Johannes Jacob Pieter Kastelein New Amsterdam Pharma CO N.V. (NAMS) insider trading activity

Shares Held (Direct Ownership) 99K

24.53% 3M change

191.12% 12M change

Total Value Held N/A

Johannes Jacob Pieter Kastelein Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jan 07 2026	BUY Grant, award, or other acquisition	-	25,500 Added 20.49%	98,981 Ordinary Shares
Jan 05 2026	SELL Open market or private sale	$199,500 $33.25 p/Share	6,000 Reduced 7.55%	73,481 Ordinary Shares
Mar 26 2025	BUY Exercise of conversion of derivative security	-	45,481 Added 36.4%	79,481 Ordinary Shares
Jan 07 2025	BUY Grant, award, or other acquisition	-	34,000 Added 50.0%	34,000 Ordinary Shares

JJP

Chief Scientific Officer

Naarden, P7

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