Senior insider sale
Chief Medical Officer at INSMED INC — senior position signals high conviction
$3.88M
35.71K shares
What this filing means
FLAMMER MARTINA M.D. plans to sell 35.71K shares of INSMED INC valued at approximately $3.88M. 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: 6/5/2026ACC: 0001628280-26-041241
Officer· Chief Medical Officer
Since Dec 2019
35.71K
Shares to sell
$3.88M
Approx. market value
1.86K
Acquired (3 months)
1
Planned
4 completed
Securities Acquired — Last 3 Months1
Stock Plan Activity
n/a
6/1/2026
1.86KTotal acquired1.86K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
6/1/2026 | Stock Plan Activity n/a | 1.86K | — |
| Total | 1.86K | ||
Planned & Completed Dispositions5
Completed
—Completed
Units to sell
2.57K
Market value
$262.4K
6/3/2026
—Completed
Units to sell
10.48K
Market value
$1.23M
5/14/2026
—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
1.86K
Market value
$192.8K
6/5/2026
Total
Units
35.71K
Value
$3.88M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
| Completed | ||||
6/3/2026 | 2.57K | $262.4K | — | Completed |
5/14/2026 | 10.48K | $1.23M | — | Completed |
5/13/2026 | 7.85K | $897.1K | — | Completed |
5/11/2026 | 12.95K | $1.30M | — | Completed |
| Planned — Approximate Date | ||||
6/5/2026 | 1.86K | $192.8K | NASDAQ | Planned |
| Total | 35.71K | $3.88M | ||