James N. Topper
Director at NewAmsterdam Pharma · 8 reported transactions in 2 companies · latest trade Sep 15, 2025
Their record
Across their whole record, 1 purchase can be measured; 1 did better than the S&P 500 over the next 6 months.
Typical move +169.9%, S&P 500 +13.8% over the same days.
Their trades
Bought | Sep 15, 2025 | Sep 15, 2025 close $12.69 → Oct 29, 2026 close $8.25. S&P 500 +16.9% over the same days. | ||
Bought | Sep 8, 2025 | Sep 8, 2025 close $13.52 → Oct 29, 2026 close $8.25. S&P 500 +19.0% over the same days. | ||
Bought | Aug 11, 2025 | Aug 11, 2025 close $13.18 → Oct 29, 2026 close $8.25. S&P 500 +21.4% over the same days. | ||
Bought | Jun 25, 2025 | Jun 25, 2025 close $9.17 → Oct 29, 2026 close $8.25. S&P 500 +27.2% over the same days. | ||
Bought | Jun 24, 2025 | Jun 24, 2025 close $9.77 → Oct 29, 2026 close $8.25. S&P 500 +27.3% over the same days. | ||
Bought | Jun 16, 2025 | Jun 16, 2025 close $9.54 → Oct 29, 2026 close $8.25. S&P 500 +28.1% over the same days. |
BoughtNewAmsterdam Pharma
$15.6K
Sep 15, 2025 close $12.69 → Oct 29, 2026 close $8.25. S&P 500 +16.9% over the same days.
BoughtNewAmsterdam Pharma
$31.5K
Sep 8, 2025 close $13.52 → Oct 29, 2026 close $8.25. S&P 500 +19.0% over the same days.
BoughtNewAmsterdam Pharma
$11.3K
Aug 11, 2025 close $13.18 → Oct 29, 2026 close $8.25. S&P 500 +21.4% over the same days.
BoughtNewAmsterdam Pharma
$23K
Jun 25, 2025 close $9.17 → Oct 29, 2026 close $8.25. S&P 500 +27.2% over the same days.
BoughtNewAmsterdam Pharma
$46.5K
Jun 24, 2025 close $9.77 → Oct 29, 2026 close $8.25. S&P 500 +27.3% over the same days.
BoughtNewAmsterdam Pharma
$167.4K
Jun 16, 2025 close $9.54 → Oct 29, 2026 close $8.25. S&P 500 +28.1% over the same days.