InsiderClue
Stocks · Health care · Pharmaceutical Preparations

NewAmsterdam Pharma Co N.V.

NAMS Clue Score25
Netherlands Fiscal year ends December CIK 0001936258 Results filed 5 Aug 2026
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What the insiders did Net selling

Individual transactions

12
Insider
Date
Role
Action
Shares
Price
Amount
John W Smither
4 Sep 2026
Director
Sell
1,600
$25.32
$40.51K
Louis G Lange
11 Mar 2026
Director
Sell
446
$31.23
$13.93K
Louis G Lange
11 Mar 2026
Director
Sell
44,173
$30.41
$1.34M
Louis G Lange
6 Mar 2026
Director
Sell indirect
28,186
$29.41
$828.95K
Johannes Jacob Pieter Kastelein
20 Feb 2026
Chief Scientific Officer
Sell
30,789
$35.46
$1.09M
Johannes Jacob Pieter Kastelein
20 Feb 2026
Chief Scientific Officer
Sell
14,692
$35.00
$514.22K
Louise Frederika Kooij
3 Sep 2025
Chief Accounting Officer
Sell
18,073
$25.09
$453.45K
Louise Frederika Kooij
25 Aug 2025
Chief Accounting Officer
Sell
8,269
$24.86
$205.57K
Johannes Jacob Pieter Kastelein
22 Aug 2025
Chief Scientific Officer
Sell indirect
7,658
$25.49
$195.20K
Johannes Jacob Pieter Kastelein
22 Aug 2025
Chief Scientific Officer
Sell indirect
42,342
$25.08
$1.06M
Johannes Jacob Pieter Kastelein
21 Aug 2025
Chief Scientific Officer
Sell indirect
50,000
$24.29
$1.21M
Louise Frederika Kooij
1 Oct 2024
Chief Accounting Officer
Sell
45,000
$15.72
$707.40K
Show all 117 transactions →

What was left out

Form 4 filings counted 109
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 10
Sales on a Rule 10b5-1 plan 29
Sales straight out of an exercise 61
Sales at will 12
Transactions with no price 20
Shares from compensation/vesting 4,198,377
History held since 3 Jan 2024