Info
Insider Ownership

Insider Trading & Ownership of David R. Brennan

Location: Bridgewater, NJ
Summary: The estimated net worth of David R. Brennan is at least $19,315,418 dollars as of 25 Feb 2026. David R. Brennan is the Director of INSMED Inc and owns shares of INSMED Inc (INSM) stock worth about $19.32M.
Signature: /s/ David. R. Brennan, by Michael A. Smith as Attorney-in-fact
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Ownership of David R. Brennan

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
INSM	INSMED Inc	Director	$19,315,418			23 Feb 2026
ALXN	ALEXION PHARMACEUTICALS, INC.	Director				21 Jul 2021

Insider Transactions Reported by David R. Brennan:

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.