James N Topper's Net Worth

James N Topper's net worth is estimated to be at least $17,182,447.86 as of 05/26/2024. 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 Alpine Immune Sciences Inc. They have executed at least 5 trades of stock as per SEC Form 4 filings. Their most recent trade was for 19 units of ALPN stock on 04/25/2024. 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:
  • $17,181,221.03
Total value of insider sells:
  • $1,226.83
Most recent insider trade:
  • April 25, 2024

James N Topper's Insider Trading History

Alpine Immune Sciences IncTitleAmountPriceTypeTotal Value
April 25, 2024
Director19$64.57Sell$1,226.83
Jan. 18, 2019
Director372,439$5.37Buy$1,999,997.43
NewAmsterdam Pharma Company N.V.TitleAmountPriceTypeTotal Value
March 26, 2024
Director8,429$21.50Buy$181,223.50
Allena Pharmaceuticals IncTitleAmountPriceTypeTotal Value
Nov. 6, 2017
Director500,000$14.00Buy$7,000,000.00
Sierra Oncology IncTitleAmountPriceTypeTotal Value
Feb. 14, 2017
Director5,925,926$1.35Buy$8,000,000.10