Insider Trading & Ownership of James N. Topper

Location
Palo Alto, CA
Summary
The estimated net worth of James N. Topper is at least $183,332,347 dollars as of 17 Sep 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 $163.61M. James N. Topper is the Director, 10%+ Owner of Phathom Pharmaceuticals, Inc. and owns shares of Phathom Pharmaceuticals, Inc. (PHAT) stock worth about $19.64M. James N. Topper is the Director, 10%+ Owner of ANAPTYSBIO, INC and owns shares of ANAPTYSBIO, INC (ANAB) stock worth about $85.1K.
Signature
/s/ Steve R. Bailey, Attorney-in-Fact For James N. Topper
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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 $163,607,979 +$404,991 +0.25% 15 Sep 2025
PHAT Phathom Pharmaceuticals, Inc. Director, 10%+ Owner $19,639,309 +$191,988 +0.99% 03 Jun 2025
ANAB ANAPTYSBIO, INC Director, 10%+ Owner $85,059 06 Jan 2023
ALPN ALPINE IMMUNE SCIENCES, INC. Director $0 18 May 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.