Senior insider sale
General Counsel, Senior VP at INSMED INC — senior position signals high conviction
$7.97M
54.67K shares
What this filing means
SMITH MICHAEL ALEXANDER plans to sell 54.67K shares of INSMED INC valued at approximately $7.97M. 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.
Filed: 5/22/2026ACC: 0001628280-26-037776
Officer· General Counsel, Senior VP
Since Jul 2021
54.67K
Shares to sell
$7.97M
Approx. market value
6.15K
Acquired (3 months)
1
Planned
3 completed
Securities Acquired — Last 3 Months1
Stock plan activity
n/a
5/11/2026
6.15KTotal acquired6.15K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
5/11/2026 | Stock plan activity n/a | 6.15K | — |
| Total | 6.15K | ||
Planned & Completed Dispositions4
Completed
—Completed
Units to sell
4.11K
Market value
$477.4K
5/13/2026
—Completed
Units to sell
19.64K
Market value
$2.96M
3/30/2026
—Completed
Units to sell
24.77K
Market value
$3.86M
2/24/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
6.15K
Market value
$667.0K
5/22/2026
Total
Units
54.67K
Value
$7.97M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
5/13/2026 | 4.11K | $477.4K | — | Completed |
3/30/2026 | 19.64K | $2.96M | — | Completed |
2/24/2026 | 24.77K | $3.86M | — | Completed |
| Planned — Approximate Date | ||||
5/22/2026 | 6.15K | $667.0K | NASDAQ | Planned |
| Total | 54.67K | $7.97M | ||