Form 4 for INSM INSMED Inc
Accepted 2026-01-08 00:00:00 ET · period of report 2026-01-06 · accession 0001796960-26-000004 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-01-08 | 2026-01-06 | INSM | Flammer Martina M.D. | Chief Medical Off | M - OptEx | $26.43 | +8,570 | 103.3K | +9% | +$226.5K |
| DM | 2026-01-08 | 2026-01-06+ | INSM | Flammer Martina M.D. | Chief Medical Off | S - Sale+OE | $174.06 | -16.5K | 95.7K | -15% | -$2.88M |
| D | 2026-01-08 | 2026-01-06 | INSM | Flammer Martina M.D. | Chief Medical Off | M - OptEx | $0.00 | -8,570 | 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 | 2026-01-06 | M | A | 8,570 | $26.43 | 103,324 | D | — | — | |
| 2 | Common | Common Stock | 2026-01-06 | S | D | 4,783 | $173.47 | 98,541 | D | — | — | (F2) This is the weighted average sales price representing 4,783 shares sold at prices ranging from $172.89 to $173.87 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 | 2026-01-08 | S | D | 3,251 | $174.17 | 86,794 | D | — | — | |
| 4 | Common | Common Stock | 2026-01-08 | S | D | 1,660 | $173.87 | 90,045 | D | — | — | (F7) This is the weighted average sales price representing 1,660 shares sold at prices ranging from $173.87 to $173.90 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 | 2026-01-07 | S | D | 1,434 | $175.84 | 91,705 | D | — | — | (F6) This is the weighted average sales price representing 1,434 shares sold at prices ranging from $175.72 to $176.00 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 | 2026-01-06 | S | D | 1,615 | $173.33 | 93,139 | D | — | — | |
| 7 | Common | Common Stock | 2026-01-06 | S | D | 957 | $175.01 | 94,754 | D | — | — | (F4) This is the weighted average sales price representing 957 shares sold at prices ranging from $174.97 to $175.12 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 | Common | Common Stock | 2026-01-06 | S | D | 2,830 | $174.21 | 95,711 | D | — | — | (F3) This is the weighted average sales price representing 2,830 shares sold at prices ranging from $173.92 to $174.80 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. |
| 9 | Derivative | Stock Option (right to buy) | 2026-01-06 | M | D | 8,570 | $0.00 | 0 | D | $26.43 · — to 2032-01-06 | 8,570 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. |