NAMS Stock: Insider Activity, Filings & Research

NewAmsterdam Pharma Company N.V. (NAMS)Drillr’s hub for NAMS insider activity, SEC filings, earnings signals and AI research. Over the trailing 3 months, NAMS insiders filed 0 open-market buys and 7 sales (SEC Form 4).

NAMS insider trading activity (SEC Form 4)

Sentiment
0/100
Buys (3m)
0
Sells (3m)
7
Net (3m)
-$13.6M
Insider trades by month Buys Sells
Sep
Dec
Jan
Feb
Mar
May
Context3-month price +3%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
May 27, 2026Kooij Louise Frederikaofficer: Chief Accounting OfficerOption60,000$10.00
May 27, 2026Kooij Louise Frederikaofficer: Chief Accounting OfficerOption5,000$10.90
May 27, 2026Kooij Louise Frederikaofficer: Chief Accounting OfficerSell65,000$35.69
Mar 12, 2026LANGE LOUIS GdirectorSell446$31.23
Mar 12, 2026LANGE LOUIS GdirectorSell44,173$30.41
Mar 10, 2026LANGE LOUIS GdirectorSell28,186$29.41
Mar 9, 2026Kastelein Johannes Jacob Pieterdirector, officer: Chief Scientific OfficerOption94,124
Mar 9, 2026Kastelein Johannes Jacob Pieterdirector, officer: Chief Scientific OfficerSell94,124$30.32
Mar 9, 2026Kastelein Johannes Jacob Pieterdirector, officer: Chief Scientific OfficerOption101,409
Mar 9, 2026Kastelein Johannes Jacob Pieterdirector, officer: Chief Scientific OfficerSell101,409$30.29
Mar 9, 2026Kastelein Johannes Jacob Pieterdirector, officer: Chief Scientific OfficerSell104,467$30.30
Mar 9, 2026Kastelein Johannes Jacob Pieterdirector, officer: Chief Scientific OfficerOption104,467
Mar 2, 2026Davidson Michael H.director, officer: Chief Executive OfficerSell443,707$33.25
Mar 2, 2026Davidson Michael H.director, officer: Chief Executive OfficerOption443,707
Feb 26, 2026Davidson Michael H.director, officer: Chief Executive OfficerSell165,408$33.63

Source: NAMS SEC Form 4 filings, latest May 27, 2026. For informational purposes only — not investment advice.

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