James N Topper's Net Worth
James N Topper's net worth is estimated to be at least $17,292,159.11 as of 04/01/2025. CoreStreet's estimation of James N Topper's net worth is based on their sale of stock and current holding of stock.
James N Topper is Director at NewAmsterdam Pharma Company N.V.. They have executed at least 7 trades of stock as per SEC Form 4 filings. Their most recent trade was for 1,135 units of NAMS stock on 03/26/2025. Their biggest sale was on 04/25/2024 when they sold 19 units of Alpine Immune Sciences Inc stock for $1,226.83. They typically trade 1 times per year.
Total value of insider buys:
- $17,290,932.28
Total value of insider sells:
- $1,226.83
Most recent insider trade:
- March 26, 2025
James N Topper's Insider Trading History
| NewAmsterdam Pharma Company N.V. | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|
March 26, 2025 | Director | 1,135 | $22.49 | Buy | $25,526.15 |
March 4, 2025 | Director | 4,005 | $21.02 | Buy | $84,185.10 |
March 26, 2024 | Director | 8,429 | $21.50 | Buy | $181,223.50 |
| Alpine Immune Sciences Inc | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|
April 25, 2024 | Director | 19 | $64.57 | Sell | $1,226.83 |
Jan. 18, 2019 | Director | 372,439 | $5.37 | Buy | $1,999,997.43 |
| Allena Pharmaceuticals Inc | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|
Nov. 6, 2017 | Director | 500,000 | $14.00 | Buy | $7,000,000.00 |
| Sierra Oncology Inc | Title | Amount | Price | Type | Total Value |
|---|---|---|---|---|---|
Feb. 14, 2017 | Director | 5,925,926 | $1.35 | Buy | $8,000,000.10 |