David R. Brennan

Insider Reports History

Identity Names, identifiers, and filing context for this profile. 1 identity field
Reporting-owner location
Bridgewater, NJ
SEC source record Original filing metadata and source links for verification. 1 source field
Latest reporting-owner signature
/s/ David. R. Brennan, by Michael A. Smith as Attorney-in-fact
Source: Latest parsed Forms 3/4/5 signature
Source evidence Original filing metadata and source links for verification. 1 source field
Transaction source note
Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for David R. Brennan

Form 4 holding Director

INSMED Inc

Security class
Common Stock
Shares / value
64,238
Estimated value
$10,504,197
Report date
13 May 2026
Price
$163.52
Ownership
Direct
Form 4 holding Director

INSMED Inc

Security class
Common Stock
Shares / value
60,000
Estimated value
$9,811,200
Report date
13 May 2026
Price
$163.52
Ownership
By spouse revocable trust
Form 4 holding Director

ALEXION PHARMACEUTICALS, INC.

Security class
Option to Purchase Common Stock
Shares / value
0
Estimated value
Report date
21 Jul 2021
Price
$155.01
Ownership
Direct
Underlying class
Common Stock, par value $.0001 per share
Underlying amount

Insider Reports Filed by David R. Brennan

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