Senior insider sale
Chief Accounting Officer at NEWAMSTERDAM PHARMA CO N.V. — senior position signals high conviction
$7.44M
210K shares
What this filing means
KOOIJ LOUISE FREDERIKA plans to sell 210K shares of NEWAMSTERDAM PHARMA CO N.V. valued at approximately $7.44M. 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: 5/26/2026ACC: 0001968582-26-000491
Officer· Chief Accounting Officer
Since Jan 2026
210K
Shares to sell
$7.44M
Approx. market value
210K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
Stock Option Exercise
Cash
5/26/2026
210KTotal acquired210K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
5/26/2026 | Stock Option Exercise Cash | 210K | — |
| Total | 210K | ||
Planned & Completed Dispositions1
NASDAQPlanned
Units to sell
210K
Market value
$7.44M
5/26/2026
Total
Units
210K
Value
$7.44M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
5/26/2026 | 210K | $7.44M | NASDAQ | Planned |
| Total | 210K | $7.44M | ||