Form 4 for INSM INSMED Inc
Accepted 2026-08-12 17:04:30 ET · period of report 2026-08-10 · accession 0001685904-26-000014 · 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 | 2026-08-12 17:04 | 2026-08-10 | INSM | Adsett Roger | COO | M - OptEx | $20.45 | +239.8K | 338.6K | +243% | +$4.91M |
| D | 2026-08-12 17:04 | 2026-08-10 | INSM | Adsett Roger | COO | S - Sale+OE | $133.27 | -239.8K | 98.7K | -71% | -$31.96M |
| DM | 2026-08-12 17:04 | 2026-08-10 | INSM | Adsett Roger | COO | M - OptEx | $0.00 | -239.8K | 0 | -100% | $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 | 2026-08-10 | M | A | 82,280 | $13.67 | 181,024 | D | — | — | (F1) Includes 141 shares acquired through the Company's 2018 Employee Stock Purchase Plan. |
| 2 | Common | Common Stock | 2026-08-10 | M | A | 76,600 | $17.16 | 257,624 | D | — | — | |
| 3 | Common | Common Stock | 2026-08-10 | M | A | 80,970 | $30.46 | 338,594 | D | — | — | |
| 4 | Common | Common Stock | 2026-08-10 | S | D | 239,850 | $133.27 | 98,744 | D | — | — | (F2) This is the weighted average sales price representing 239,850 shares sold at prices ranging from $133.00 to $133.51 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. |
| 5 | Derivative | Stock Option (right to buy) | 2026-08-10 | M | D | 82,280 | $0.00 | 0 | D | $13.67 · — to 2027-01-05 | 82,280 Common Stock | (F3) 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. |
| 6 | Derivative | Stock Option (right to buy) | 2026-08-10 | M | D | 76,600 | $0.00 | 0 | D | $17.16 · — to 2027-05-17 | 76,600 Common Stock | (F3) 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) | 2026-08-10 | M | D | 80,970 | $0.00 | 0 | D | $30.46 · — to 2028-01-04 | 80,970 Common Stock | (F3) 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. |