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NAMS Exercise Disclosure
Kastelein Johannes Jacob Pieter · SEC Form 4 · Filed Aug 25, 2026
Exercise
Reported value range
Not reported
Kastelein Johannes Jacob Pieter Chief Scientific Officer
NAMS
Transaction date
Aug 24, 2026
Public filing date
Aug 25, 2026
Filing lag
Filed 1 day later
NAMS daily price context
Close on/before transaction
$26.85
Aug 24, 2026
First close after public filing
$27.4
Aug 26, 2026
30-day return after filing
-17.01%
Through Sep 24, 2026
Source details
- Reported owner
- Not disclosed
- Source asset code
- Security
- Security
- Ordinary Shares
- Quantity / price
- 125,000 shares
- SEC ownership
- Indirect
- Transaction code
- M
- Form
- 4
- Filing identifier
- 0001193125-26-365202
Filing cohort
Transactions in this filing
Showing 3 of 3
Trades
3
Issuers
1
Estimated value
$3.36M
Buys / sales
0 / 1
| Issuer | Transaction | Traded | Value |
|---|---|---|---|
| Newamsterdam Pharma Co N.v. NAMS Current | Exercise | Aug 24, 2026 | Not reported |
| Newamsterdam Pharma Co N.v. NAMS | Exercise | Aug 24, 2026 | $0 |
| Newamsterdam Pharma Co N.v. NAMS | Sale | Aug 24, 2026 | $3.36M |