Form 4 for INSM INSMED Inc
Accepted 2026-01-13 00:00:00 ET · period of report 2026-01-12 · accession 0001402051-26-000007 · 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 | 2026-01-13 | 2026-01-12 | INSM | Lewis William | COB, CEO, Dir | S - Sale+OE | $169.00 | -19.2K | 307.8K | -6% | -$3.25M |
| DM | 2026-01-13 | 2026-01-12 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $24.94 | +10.7K | 321.7K | +3% | +$266.8K |
| DM | 2026-01-13 | 2026-01-12 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $0.00 | -10.7K | 57.7K | -16% | $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 | 2026-01-12 | S | D | 7,176 | $168.63 | 314,956 | D | — | — | (F3) This is the weighted average sales price representing 7,176 shares sold at prices ranging from $168.11 to $169.10 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 | 2026-01-12 | S | D | 6,996 | $169.57 | 307,960 | D | — | — | (F4) This is the weighted average sales price representing 6,996 shares sold at prices ranging from $169.11 to $170.08 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 | 2026-01-12 | S | D | 297 | $171.31 | 307,503 | D | — | — | (F6) This is the weighted average sales price representing 297 shares sold at prices ranging from $171.21 to $171.52 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. |
| 4 | Common | Common Stock | 2026-01-12 | S | D | 297 | $172.36 | 307,206 | D | — | — | (F7) This is the weighted average sales price representing 297 shares sold at prices ranging from $172.26 to $172.42 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 | 2026-01-12 | S | D | 315 | $174.86 | 306,891 | D | — | — | |
| 6 | Common | Common Stock | 2026-01-12 | S | D | 3,974 | $167.73 | 322,132 | D | — | — | (F2) This is the weighted average sales price representing 3,974 shares sold at prices ranging from $167.11 to $168.02 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 | 2026-01-12 | M | A | 4,440 | $17.16 | 326,106 | D | — | — | |
| 8 | Common | Common Stock | 2026-01-12 | M | A | 6,259 | $30.46 | 321,666 | D | — | — | |
| 9 | Common | Common Stock | 2026-01-12 | S | D | 160 | $170.24 | 307,800 | D | — | — | (F5) This is the weighted average sales price representing 160 shares sold at prices ranging from $170.12 to $170.89 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. |
| 10 | Derivative | Stock Option (right to buy) | 2026-01-12 | M | D | 6,259 | $0.00 | 81,368 | D | $30.46 · — to 2028-01-04 | 6,259 Common Stock | (F8) 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. |
| 11 | Derivative | Stock Option (right to buy) | 2026-01-12 | M | D | 4,440 | $0.00 | 57,720 | D | $17.16 · — to 2027-05-17 | 4,440 Common Stock | (F8) 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. |