Form4insider filings, from the source

Insider · CIK 0002004379

Louise Frederika Kooij

Files at: NAMS. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $4.4M · 2net −$4.4M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesJun 21Jun 26Jul 1Jul 6Jul 11Jul 16Jul 21

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jul 20, 2026 SForm 4 →Jul 22, 4:05 pm EDTNewAmsterdam Pharma Co N.V.NAMS105,000$30.34$3,185,65624,353−81.2%10b5-1
Jul 20, 2026 MForm 4 →Jul 22, 4:05 pm EDTNewAmsterdam Pharma Co N.V.NAMS105,000$11.34$1,191,100129,353—10b5-1
Jun 22, 2026 SForm 4 →Jun 24, 4:10 pm EDTNewAmsterdam Pharma Co N.V.NAMS40,000$30.20$1,208,15924,353−62.2%10b5-1
Jun 22, 2026 MForm 4 →Jun 24, 4:10 pm EDTNewAmsterdam Pharma Co N.V.NAMS40,000$11.28$451,00064,353—10b5-1

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jul 20, 2026 MForm 4 →Jul 22, 4:05 pm EDTNewAmsterdam Pharma Co N.V.NAMS105,000——70,494—10b5-1
Jun 22, 2026 MForm 4 →Jun 24, 4:10 pm EDTNewAmsterdam Pharma Co N.V.NAMS40,000——35,000—10b5-1