Info
Insider Ownership

Insider Trading & Ownership of Stephanie Monaghan O'Brien

Location: Newton Centre, MA
Summary: The estimated net worth of Stephanie Monaghan O'Brien is at least $987,579 dollars as of 05 Jan 2026. Stephanie Monaghan O'Brien is the Director of Apellis Pharmaceuticals, Inc. and owns shares of Apellis Pharmaceuticals, Inc. (APLS) stock worth about $987.6K.
Signature: /s/ David Watson, attorney-in-fact for Stephanie O'Brien
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Ownership of Stephanie Monaghan O'Brien

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
APLS	Apellis Pharmaceuticals, Inc.	Director	$987,579			01 Jan 2026

Insider Transactions Reported by Stephanie Monaghan O'Brien:

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.