David R Brennan Insmed Inc (INSM) insider trading activity

David R Brennan is Director of INSMED Inc. Currently has a direct ownership of 66,933 shares of INSM, which is worth approximately $12.9 Million. The most recent transaction as insider was on Nov 06, 2025, when has been sold 60,000 shares (Common Stock) at a price of $0.0 per share, resulting in proceeds of $0. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 66.9K

47.27% 3M change

45.08% 12M change

Total Value Held $12.9 Million

David R Brennan Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Nov 06 2025	SELL Bona fide gift	-	60,000 Reduced 47.27%	66,933 Common Stock
May 15 2025	BUY Grant, award, or other acquisition	-	5,058 Added 3.83%	126,933 Common Stock
May 13 2024	BUY Grant, award, or other acquisition	-	13,162 Added 9.75%	121,875 Common Stock
May 11 2023	BUY Grant, award, or other acquisition	-	13,192 Added 10.82%	108,713 Common Stock
May 11 2022	BUY Grant, award, or other acquisition	-	14,645 Added 13.29%	95,521 Common Stock
Nov 01 2021	BUY Open market or private purchase	$301,500 $30.15 p/Share	10,000 Added 11.0%	80,876 Common Stock
May 12 2021	BUY Grant, award, or other acquisition	-	7,558 Added 9.64%	70,876 Common Stock

Also insider at

ALXN

ALEXION PHARMACEUTICALS, INC.

Director

DRB

David R Brennan

Director

Bridgewater, NJ

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