Form 4 for INSM INSMED Inc
Accepted 2026-02-11 00:00:00 ET · period of report 2026-02-09 · accession 0001402051-26-000013 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-02-11 | 2026-02-09 | INSM | Lewis William | COB, CEO, Dir | S - Sale+OE | $147.79 | -13.4K | 302.5K | -4% | -$1.98M |
| DM | 2026-02-11 | 2026-02-09 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $24.94 | +10.7K | 308.3K | +4% | +$266.8K |
| DM | 2026-02-11 | 2026-02-09 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $0.00 | -10.7K | 48.8K | -18% | $0 |
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 | 2026-02-09 | S | D | 1,287 | $148.83 | 301,185 | D | — | — | (F4) This is the weighted average sales price representing 1,287 shares sold at prices ranging from $148.62 to $149.35 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request. |
| 2 | Common | Common Stock | 2026-02-09 | S | D | 4,888 | $147.17 | 309,693 | D | — | — | (F2) This is the weighted average sales price representing 4,888 shares sold at prices ranging from $146.61 to $147.60 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request. |
| 3 | Common | Common Stock | 2026-02-09 | M | A | 6,259 | $30.46 | 314,581 | D | — | — | |
| 4 | Common | Common Stock | 2026-02-09 | M | A | 4,440 | $17.16 | 308,322 | D | — | — | |
| 5 | Common | Common Stock | 2026-02-09 | S | D | 7,221 | $148.02 | 302,472 | D | — | — | (F3) This is the weighted average sales price representing 7,221 shares sold at prices ranging from $147.61 to $148.60 per share. The Reporting Person undertakes to provide to the SEC staff, the issuer, or a security holder of the issuer the number of shares sold at each price within the price range upon request. |
| 6 | Derivative | Stock Option (right to buy) | 2026-02-09 | M | D | 6,259 | $0.00 | 68,850 | D | $30.46 · — to 2028-01-04 | 6,259 Common Stock | (F5) The options became exercisable based on the following vesting schedule: 25% vested on the first anniversary of the grant date and an additional 12.5% vested on each sixth month anniversary date thereafter through the fourth anniversary of the date of grant. |
| 7 | Derivative | Stock Option (right to buy) | 2026-02-09 | M | D | 4,440 | $0.00 | 48,840 | D | $17.16 · — to 2027-05-17 | 4,440 Common Stock | (F5) The options became exercisable based on the following vesting schedule: 25% vested on the first anniversary of the grant date and an additional 12.5% vested on each sixth month anniversary date thereafter through the fourth anniversary of the date of grant. |