Form 4 for INSM INSMED Inc
Accepted 2025-11-05 00:00:00 ET · period of report 2025-11-03 · accession 0001870278-25-000011 · 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 | 2025-11-05 | 2025-11-03 | INSM | Smith Michael Alexander | CLO | M - OptEx | $23.75 | +27.1K | 82.0K | +49% | +$644.3K |
| DM | 2025-11-05 | 2025-11-03 | INSM | Smith Michael Alexander | CLO | S - Sale+OE | $183.78 | -27.1K | 64.8K | -30% | -$4.99M |
| D | 2025-11-05 | 2025-11-03 | INSM | Smith Michael Alexander | CLO | M - OptEx | $0.00 | -27.1K | 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 | 2025-11-03 | M | A | 27,130 | $23.75 | 82,032 | D | — | — | |
| 2 | Common | Common Stock | 2025-11-03 | S | D | 1,342 | $181.01 | 80,690 | D | — | — | (F2) This is the weighted average sales price representing 1,342 shares sold at prices ranging from $180.29 to $181.19 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 | 2025-11-03 | S | D | 7,619 | $181.88 | 73,071 | D | — | — | (F3) This is the weighted average sales price representing 7,619 shares sold at prices ranging from $181.30 to $182.29 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 | 2025-11-03 | S | D | 4,286 | $182.60 | 68,785 | D | — | — | (F4) This is the weighted average sales price representing 4,286 shares sold at prices ranging from $182.30 to $183.03 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 | 2025-11-03 | S | D | 1,400 | $187.97 | 54,902 | D | — | — | (F9) This is the weighted average sales price representing 1,400 shares sold at prices ranging from $187.88 to $188.13 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 | 2025-11-03 | S | D | 3,243 | $184.91 | 61,510 | D | — | — | (F6) This is the weighted average sales price representing 3,243 shares sold at prices ranging from $184.50 to $185.48 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 | 2025-11-03 | S | D | 3,636 | $185.93 | 57,874 | D | — | — | (F7) This is the weighted average sales price representing 3,636 shares sold at prices ranging from $185.51 to $186.45 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 | 2025-11-03 | S | D | 1,572 | $187.15 | 56,302 | D | — | — | (F8) This is the weighted average sales price representing 1,572 shares sold at prices ranging from $186.61 to $187.53 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. |
| 9 | Common | Common Stock | 2025-11-03 | S | D | 4,032 | $183.92 | 64,753 | D | — | — | (F5) This is the weighted average sales price representing 4,032 shares sold at prices ranging from $183.49 to $184.48 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) | 2025-11-03 | M | D | 27,130 | $0.00 | 0 | D | $23.75 · — to 2030-01-03 | 27,130 Common Stock | (F10) 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. |