$ Value
$391K
Shares
5,472
Price
$72
Filed
Jun 4
Insider
Name
Lewis William
Title
Chair and CEO
CIK
0001402051
Roles
Transaction Details
Transaction Date
2025-06-03
Code
S
Table
Non-Derivative
Ownership
Direct
Equity Swap
No
Shares After
308,758
Footnotes
This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 12, 2024, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. | This is the weighted average sales price representing 1,000 shares sold at prices ranging from $69.59 to $70.57 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. | This is the weighted average sales price representing 4,400 shares sold at prices ranging from $70.67 to $71.66 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. | This is the weighted average sales price representing 1,430 shares sold at prices ranging from $71.67 to $72.24 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. | Shares sold to satisfy tax withholding obligations upon the vesting of Restricted Stock Units and to cover related broker fees. | 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.
Filing Info
Lewis William's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2026-04-16 | INSM | M | $191K |
| 2026-04-16 | INSM | M | $76K |
| 2026-04-16 | INSM | ▼ | $321K |
| 2026-04-16 | INSM | ▼ | $773K |
| 2026-04-16 | INSM | ▼ | $326K |
| 2026-04-16 | INSM | ▼ | $120K |
| 2026-04-16 | INSM | M | $0 |
| 2026-04-16 | INSM | M | $0 |
| 2026-04-06 | INSM | M | $191K |
| 2026-04-06 | INSM | M | $76K |
Other Insiders at INSM (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
|
Lewis William
Chair and CEO
|
— | $3.3M | 2026-04-16 |
|
Adsett Roger
Chief Operating Officer
|
— | $14.5M | 2026-04-01 |
|
Smith Michael Alexander
Chief Legal Officer
|
— | $3.0M | 2026-03-30 |