Senior insider sale
INSMED INC — senior position signals high conviction
$3.10M
25K shares
What this filing means
BRENNAN DAVID R plans to sell 25K shares of INSMED INC valued at approximately $3.10M. 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: 9/10/2026ACC: 0001957799-26-000171
25K
Shares to sell
$3.10M
Approx. market value
25K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months3
Equity grant
N/A
5/22/2026
5.06KEquity grant
N/A
5/15/2025
13.16KEquity grant
N/A
5/22/2024
6.78KTotal acquired25K
| Acquisition Date | Type | Amount Acquired | Gift |
|---|---|---|---|
5/22/2026 | Equity grant N/A | 5.06K | — |
5/15/2025 | Equity grant N/A | 13.16K | — |
5/22/2024 | Equity grant N/A | 6.78K | — |
| Total | 25K | ||
Planned & Completed Dispositions1
NasdaqPlanned
Units to sell
25K
Market value
$3.10M
9/9/2026
Total
Units
25K
Value
$3.10M
| Date | Units to Sell | Approx. Market Value | Exchange | Status |
|---|---|---|---|---|
9/9/2026 | 25K | $3.10M | Nasdaq | Planned |
| Total | 25K | $3.10M | ||