Form 4 for INSM INSMED Inc
Accepted 2026-05-15 16:06:55 ET · period of report 2026-05-13 · accession 0001402051-26-000028 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-15 16:06 | 2026-05-13 | INSM | Lewis William | COB, CEO, Dir | S - Sale | $116.18 | -13.3K | 287.9K | -4% | -$1.54M |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-05-13 | S | D | 13,283 | $116.18 | 287,902 | D | — | — | (F1) Shares sold to satisfy tax withholding obligations upon the vesting of Restricted Stock Units and to cover related broker fees. |