• Ownership

James N. Topper - Insider Trading & Ownership

Entity
Individual
Location
550 Hamilton Avenue, Suite 100, Palo Alto, CA
Summary
The estimated net worth of James N. Topper is at least $207M dollars as of March 28, 2025. James N. Topper is the Director of NewAmsterdam Pharma Co N.V. and owns shares of NewAmsterdam Pharma Co N.V. (NAMS) stock worth about $153M. James N. Topper is the Director, 10%+ Owner of Phathom Pharmaceuticals, Inc. and owns shares of Phathom Pharmaceuticals, Inc. (PHAT) stock worth about $53.4M. James N. Topper is the Director, 10%+ Owner of ANAPTYSBIO, INC and owns shares of ANAPTYSBIO, INC (ANAB) stock worth about $85.1K.
All Insider Reports
All Insider Reports

Ownership of James N. Topper

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
NAMS, NAMSW NewAmsterdam Pharma Co N.V. Director $153M +$110K +0.07% Mar 26, 2025
PHAT Phathom Pharmaceuticals, Inc. Director, 10%+ Owner $53.4M May 23, 2024
ANAB ANAPTYSBIO, INC Director, 10%+ Owner $85.1K Jan 6, 2023
ALPN ALPINE IMMUNE SCIENCES, INC. Director $0 -$1.23K -100% May 18, 2024

Insider Transactions Reported by James N. Topper:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.