Senior insider sale
General Counsel, Senior VP at INSMED INC — senior position signals high conviction
$4.50M
33.86K shares
What this filing means
SMITH MICHAEL ALEXANDER plans to sell 33.86K shares of INSMED INC valued at approximately $4.50M. 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: 6/22/2026ACC: 0001628280-26-044649
Officer· General Counsel, Senior VP
Since Jul 2021
33.86K
Shares to sell
$4.50M
Approx. market value
1.81K
Acquired (3 months)
1
Planned
4 completed
Securities Acquired — Last 3 Months1
Stock Plan Activity
n/a
6/1/2026
1.81KTotal acquired1.81K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
6/1/2026 | Stock Plan Activity n/a | 1.81K | — |
| Total | 1.81K | ||
Planned & Completed Dispositions5
Completed
—Completed
Units to sell
2.16K
Market value
$220.8K
6/3/2026
—Completed
Units to sell
6.15K
Market value
$667.0K
5/22/2026
—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
Planned — Approximate Date
NASDAQPlanned
Units to sell
1.81K
Market value
$173.0K
6/22/2026
Total
Units
33.86K
Value
$4.50M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
6/3/2026 | 2.16K | $220.8K | — | Completed |
5/22/2026 | 6.15K | $667.0K | — | Completed |
5/13/2026 | 4.11K | $477.4K | — | Completed |
3/30/2026 | 19.64K | $2.96M | — | Completed |
| Planned — Approximate Date | ||||
6/22/2026 | 1.81K | $173.0K | NASDAQ | Planned |
| Total | 33.86K | $4.50M | ||