NAMS
insider transactionsNewAmsterdam Pharma Co N.V. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 30d
-65.0K
0 buy · 65.0K sell
Net value · 30d
-$2.3M
$0 in · $2.3M out
Sentiment · 30d
Net selling
0% buying · 100% selling
Open-market trades · 30d
1
0 buy · 65.0K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Exercise·M
Chief Accounting Officer · 10b5-1
$0
5.0K sh
Own +8%
-
Exercise·M
Chief Accounting Officer · 10b5-1
$0
60.0K sh
Own +300%
-
Sell·S
Chief Accounting Officer · 10b5-1
$2.3M
65.0K sh · $35.69
Own -73%
-
Exercise·M
Chief Accounting Officer · 10b5-1
$54.5K
5.0K sh · $10.90
Own +6%
-
Exercise·M
Chief Accounting Officer · 10b5-1
$600.0K
60.0K sh · $10.00
Own +246%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 26, 2026 | Louise Frederika Kooij 10b5-1 | Exercise M | 5.0K | $0 |
| May 26, 2026 | Louise Frederika Kooij 10b5-1 | Exercise M | 60.0K | $0 |
| May 26, 2026 | Louise Frederika Kooij 10b5-1 | Sell S | 65.0K | $2.3M |
| May 26, 2026 | Louise Frederika Kooij 10b5-1 | Exercise M | 5.0K | $54.5K |
| May 26, 2026 | Louise Frederika Kooij 10b5-1 | Exercise M | 60.0K | $600.0K |
About NAMS insider trading
This page tracks insider transactions for NewAmsterdam Pharma Co N.V. (NAMS) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.