Form 4 for INSM INSMED Inc
Accepted 2026-01-22 00:00:00 ET · period of report 2026-01-20 · accession 0001402051-26-000009 · 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 | 2026-01-22 | 2026-01-20 | INSM | Lewis William | COB, CEO, Dir | S - Sale+OE | $158.93 | -10.7K | 307.1K | -3% | -$1.70M |
| DM | 2026-01-22 | 2026-01-20 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $24.94 | +10.7K | 317.6K | +3% | +$266.8K |
| DM | 2026-01-22 | 2026-01-20 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $0.00 | -10.7K | 53.3K | -17% | $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 | 2026-01-20 | S | D | 1,006 | $156.80 | 316,584 | D | — | — | (F2) This is the weighted average sales price representing 1,006 shares sold at prices ranging from $156.53 to $157.50 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 | 2026-01-20 | M | A | 6,259 | $30.46 | 313,150 | D | — | — | |
| 3 | Common | Common Stock | 2026-01-20 | M | A | 4,440 | $17.16 | 317,590 | D | — | — | |
| 4 | Common | Common Stock | 2026-01-20 | S | D | 254 | $160.70 | 306,891 | D | — | — | (F6) This is the weighted average sales price representing 254 shares sold at prices ranging from $160.58 to $160.76 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 | Common | Common Stock | 2026-01-20 | S | D | 1,243 | $158.37 | 315,341 | D | — | — | (F3) This is the weighted average sales price representing 1,243 shares sold at prices ranging from $157.54 to $158.53 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 | Common | Common Stock | 2026-01-20 | S | D | 5,967 | $158.99 | 309,374 | D | — | — | (F4) This is the weighted average sales price representing 5,967 shares sold at prices ranging from $158.55 to $159.52 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. |
| 7 | Common | Common Stock | 2026-01-20 | S | D | 2,229 | $159.85 | 307,145 | D | — | — | (F5) This is the weighted average sales price representing 2,229 shares sold at prices ranging from $159.55 to $160.32 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. |
| 8 | Derivative | Stock Option (right to buy) | 2026-01-20 | M | D | 6,259 | $0.00 | 75,109 | D | $30.46 · — to 2028-01-04 | 6,259 Common Stock | (F7) 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. |
| 9 | Derivative | Stock Option (right to buy) | 2026-01-20 | M | D | 4,440 | $0.00 | 53,280 | D | $17.16 · — to 2027-05-17 | 4,440 Common Stock | (F7) 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. |