Senior insider sale
Chief Medical Officer at INSMED INC — senior position signals high conviction
$3.43M
31.28K shares
What this filing means
FLAMMER MARTINA M.D. plans to sell 31.28K shares of INSMED INC valued at approximately $3.43M. 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: 5/14/2026ACC: 0001628280-26-035217
Officer· Chief Medical Officer
Since Dec 2019
31.28K
Shares to sell
$3.43M
Approx. market value
10.48K
Acquired (3 months)
1
Planned
2 completed
Securities Acquired — Last 3 Months1
Stock Plan Activity
n/a
5/11/2026
10.48KTotal acquired10.48K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
5/11/2026 | Stock Plan Activity n/a | 10.48K | — |
| Total | 10.48K | ||
Planned & Completed Dispositions3
Completed
—Completed
Units to sell
7.85K
Market value
$897.1K
5/13/2026
—Completed
Units to sell
12.95K
Market value
$1.30M
5/11/2026
Planned — Approximate Date
NASDAQPlanned
Units to sell
10.48K
Market value
$1.23M
5/14/2026
Total
Units
31.28K
Value
$3.43M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
5/13/2026 | 7.85K | $897.1K | — | Completed |
5/11/2026 | 12.95K | $1.30M | — | Completed |
| Planned — Approximate Date | ||||
5/14/2026 | 10.48K | $1.23M | NASDAQ | Planned |
| Total | 31.28K | $3.43M | ||