Topper James N Insider Trading Activity
Topper James N has been net-buying over the last 12 months with 3 purchases and 0 sales across 1 company.
NAMS is the most-traded position with 3 trades. The largest single transaction was a purchase of NAMS for $31K on Sep 8, 2025.
Performance Scorecard
Forward stock performance after each transaction by Topper James N. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | +29.6% | — | 100% | 6 |
| 90 days | +45.2% | — | 100% | 6 |
| 120 days | +66.4% | — | 100% | 6 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersNAMS · NewAmsterdam Pharma Co N.V.
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Upgrade to ProRecent Trades
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Sep 15, 2025 | NAMS | Buy | 660 | $23.70 | $16K | +0.0% | Director | |
Sep 8, 2025 | NAMS | Buy | 1,260 | $24.99 | $31K | +0.0% | Director | |
Aug 11, 2025 | NAMS | Buy | 471 | $23.98 | $11K | +0.0% | Director | |
Jun 25, 2025 | NAMS | Buy | 1,260 | $18.26 | $23K | +0.0% | Director | |
Jun 24, 2025 | NAMS | Buy | 2,520 | $18.43 | $46K | +0.1% | Director | |
Jun 16, 2025 | NAMS | Buy | 8,584 | $19.50 | $167K | +0.3% | Director |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| NAMS | NewAmsterdam Pharma Co N.V. | 6 | $295K |
Other insiders at NewAmsterdam Pharma Co N.V.
6 other tracked filers at NAMS.