LEWIS WILLIAM

PrivateCIK: 1402051
Location

BRIDGEWATER, NJ

Senior insider sale

Chair and CEO at INSMED INC — senior position signals high conviction

$13.73M

103.04K shares

What this filing means

LEWIS WILLIAM plans to sell 103.04K shares of INSMED INC valued at approximately $13.73M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderLEWIS WILLIAMCIK 1402051
IssuerINSMED INCCIK 1104506
DirectorOfficer· Chair and CEO
Since Mar 2026
103.04K
Shares to sell
$13.73M
Approx. market value
25.56K
Acquired (3 months)
1
Planned
7 completed
Securities Acquired — Last 3 Months2
Sort

Stock Plan Activity

n/a

5/18/2026
10.70K

Stock Plan Activity

n/a

5/11/2026
14.87K
Total acquired25.56K
Planned & Completed Dispositions8
Sort

Completed

Completed

Units to sell

13.28K

Market value

$1.54M

5/13/2026
Completed

Units to sell

10.70K

Market value

$1.47M

5/4/2026
Completed

Units to sell

10.70K

Market value

$1.54M

4/16/2026
Completed

Units to sell

10.70K

Market value

$1.75M

4/6/2026
Completed

Units to sell

10.70K

Market value

$1.54M

3/19/2026
Completed

Units to sell

10.70K

Market value

$1.56M

3/5/2026
Completed

Units to sell

10.70K

Market value

$1.62M

2/19/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

25.56K

Market value

$2.72M

5/18/2026
Total

Units

103.04K

Value

$13.73M

LEWIS WILLIAM — Planned Insider Sale (Form 144) | Finecho