Form 4 for INSM INSMED Inc
Accepted 2025-06-18 00:00:00 ET · period of report 2025-06-16 · accession 0001628280-25-032117 · 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 | 2025-06-18 | 2025-06-16 | INSM | Lewis William | COB, CEO, Dir | S - Sale+OE | $100.32 | -5,204 | 303.6K | -2% | -$522.1K |
| DI | 2025-06-18 | 2025-06-16 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $10.85 | +129.8K | 363.7K | +55% | +$1.41M |
| DMI | 2025-06-18 | 2025-06-16 | INSM | Lewis William | COB, CEO, Dir | S - Sale+OE | $100.39 | -129.8K | 275.7K | -32% | -$13.03M |
| DI | 2025-06-18 | 2025-06-16 | INSM | Lewis William | COB, CEO, Dir | M - OptEx | $0.00 | -129.8K | 27.4K | -83% | $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 | 2025-06-16 | S | D | 442 | $98.51 | 308,316 | D By the Katie Procter Dynasty Trust | — | — | (F2) This is the weighted average sales price representing 442 shares sold at prices ranging from $98.08 to $98.94 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 | 2025-06-16 | S | D | 1,558 | $99.65 | 306,758 | D By the Katie Procter Dynasty Trust | — | — | (F3) This is the weighted average sales price representing 1,558 shares sold at prices ranging from $99.17 to $100.16 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 | 2025-06-16 | S | D | 2,300 | $100.70 | 304,458 | D By the Katie Procter Dynasty Trust | — | — | (F4) This is the weighted average sales price representing 2,300 shares sold at prices ranging from $100.19 to $101.07 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 | 2025-06-16 | M | A | 129,805 | $10.85 | 363,729 | I By the Katie Procter Dynasty Trust | — | — | |
| 5 | Common | Common Stock | 2025-06-16 | S | D | 7,000 | $98.50 | 356,729 | I | — | — | (F6) This is the weighted average sales price representing 7,000 shares sold at prices ranging from $97.93 to $98.92 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 | 2025-06-16 | S | D | 32,490 | $99.51 | 324,239 | I | — | — | (F7) This is the weighted average sales price representing 32,490 shares sold at prices ranging from $98.94 to $99.93 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 | 2025-06-16 | S | D | 41,784 | $101.23 | 233,924 | I | — | — | (F9) This is the weighted average sales price representing 41,784 shares sold at prices ranging from $100.94 to $101.61 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 | 2025-06-16 | S | D | 48,531 | $100.54 | 275,708 | I | — | — | (F8) This is the weighted average sales price representing 48,531 shares sold at prices ranging from $99.94 to $100.93 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 | 2025-06-16 | S | D | 904 | $101.39 | 303,554 | D By the Katie Procter Dynasty Trust | — | — | (F5) This is the weighted average sales price representing 904 shares sold at prices ranging from $101.20 to $101.58 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) | 2025-06-16 | M | D | 129,805 | $0.00 | 27,355 | I By the Katie Procter Dynasty Trust | $10.85 · — to 2026-05-19 | 129,805 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. |