Davidson Michael H. Insider Trading Activity
Davidson Michael H. has been net-selling over the last 12 months with 0 purchases and 8 sales across 1 company.
NAMS is the most-traded position with 8 trades. The largest single transaction was a sale of NAMS for $14.8M on Mar 2, 2026.
Performance Scorecard
Forward stock performance after each transaction by Davidson Michael H.. 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 | — | +13.3% | 100% | 8 |
| 90 days | — | -1.4% | 50% | 8 |
| 120 days | — | +7.2% | 88% | 8 |
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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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Mar 2, 2026 | NAMS | Sell | 443,707 | $33.25 | $14.8M | −71.8% | CEO | |
Feb 26, 2026 | NAMS | Sell | 17,924 | $34.44 | $617K | −9.3% | CEO | |
Feb 26, 2026 | NAMS | Sell | 165,408 | $33.63 | $5.6M | −25.7% | CEO | |
Feb 25, 2026 | NAMS | Sell | 46,517 | $35.11 | $1.6M | −9.0% | CEO | |
Feb 25, 2026 | NAMS | Sell | 10,436 | $35.96 | $375K | −2.2% | CEO | |
Feb 25, 2026 | NAMS | Sell | 1,300 | $36.68 | $48K | −0.3% | CEO | |
Feb 24, 2026 | NAMS | Sell | 61,547 | $36.13 | $2.2M | −11.7% | CEO | |
Feb 24, 2026 | NAMS | Sell | 3,161 | $36.46 | $115K | −0.7% | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| NAMS | NewAmsterdam Pharma Co N.V. | 8 | $25.3M |
Other insiders at NewAmsterdam Pharma Co N.V.
6 other tracked filers at NAMS.