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START FREE TRIAL →James N Topper, Director, is a corporate insider tracked by InsiderTape across 4 companies. The public record shows 16 open-market SEC Form 4 transactions: 15 purchases worth $30.8M and 1 sale worth $1K, reported from May 3, 22 to Sep 15, 25. Over this period they have been a net buyer.
| Date | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 15, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 660 | $23.70 | $16K |
| Sep 8, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 1.3K | $24.99 | $31K |
| Aug 11, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 471 | $23.98 | $11K |
| Jun 25, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 1.3K | $18.26 | $23K |
| Jun 24, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 2.5K | $18.43 | $46K |
| Jun 16, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 8.6K | $19.50 | $167K |
| May 21, 25 | PHATPhathom Pharmaceuticals, Inc. | BUY | 3.8K | $3.86 | $15K |
| May 14, 25 | PHATPhathom Pharmaceuticals, Inc. | BUY | 6.3K | $3.32 | $21K |
| May 13, 25 | PHATPhathom Pharmaceuticals, Inc. | BUY | 1.1K | $3.16 | $4K |
| May 12, 25 | PHATPhathom Pharmaceuticals, Inc. | BUY | 12.6K | $3.04 | $38K |
| May 9, 25 | PHATPhathom Pharmaceuticals, Inc. | BUY | 33.4K | $3.62 | $106K |
| Mar 26, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 1.1K | $22.49 | $26K |
| Mar 4, 25 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 4.0K | $21.02 | $84K |
| Apr 25, 24 | ALPNALPINE IMMUNE SCIENCES, INC. | SELL | 19 | $64.57 | $1K |
| Mar 26, 24 | NAMSNewAmsterdam Pharma Co N.V. | BUY | 8.4K | $21.50 | $181K |
| May 3, 22 | HLVXHilleVax, Inc. | BUY | 1.76M | $17.00 | $30.0M |