Senior insider sale
Chief Accounting Officer at NEWAMSTERDAM PHARMA CO N.V. — senior position signals high conviction
$10.58M
290K shares
What this filing means
KOOIJ LOUISE FREDERIKA plans to sell 290K shares of NEWAMSTERDAM PHARMA CO N.V. valued at approximately $10.58M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.
Filed: 12/23/2025ACC: 0001968582-25-001282
Officer· Chief Accounting Officer
Since Jan 2026
290K
Shares to sell
$10.58M
Approx. market value
290K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Stock Option Exercise
Cash
12/23/2025
290KTotal acquired290K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
12/23/2025 | Stock Option Exercise Cash | 290K | — |
| Total | 290K | ||
Planned & Completed Dispositions1
NASDAQPlanned
Units to sell
290K
Market value
$10.58M
12/23/2025
Total
Units
290K
Value
$10.58M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
12/23/2025 | 290K | $10.58M | NASDAQ | Planned |
| Total | 290K | $10.58M | ||