Form 4 for INSM INSMED Inc
Accepted 2025-08-06 00:00:00 ET · period of report 2025-08-04 · accession 0001402051-25-000004 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DMI | 2025-08-06 | 2025-08-04 | INSM | Lewis William | COB, CEO, Dir | S - Sale+OE | $109.81 | -6,830 | 235.9K | -3% | -$750.0K |
| DI | 2025-08-06 | 2025-08-04 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $10.85 | +6,830 | 240.8K | +3% | +$74.1K |
| DI | 2025-08-06 | 2025-08-04 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $0.00 | -6,830 | 6,865 | -50% | $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 | 2025-08-04 | S | D | 1,938 | $110.91 | 233,924 | I By the Katie Procter Dynasty Trust | — | — | (F4) This is the weighted average sales price representing 1,938 shares sold at prices ranging from $110.26 to $111.24 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 | 2025-08-04 | M | A | 6,830 | $10.85 | 240,754 | I By the Katie Procter Dynasty Trust | — | — | |
| 3 | Common | Common Stock | 2025-08-04 | S | D | 1,693 | $108.80 | 239,061 | I By the Katie Procter Dynasty Trust | — | — | (F2) This is the weighted average sales price representing 1,693 shares sold at prices ranging from $108.24 to $109.23 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 | 2025-08-04 | S | D | 3,199 | $109.68 | 235,862 | I By the Katie Procter Dynasty Trust | — | — | (F3) This is the weighted average sales price representing 3,199 shares sold at prices ranging from $109.25 to $110.23 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) | 2025-08-04 | M | D | 6,830 | $0.00 | 6,865 | I By the Katie Procter Dynasty Trust | $10.85 · — to 2026-05-19 | 6,830 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. All options are currently exercisable. |