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M 10b5-1 Plan

$ Value

$74K

Shares

6,830

Price

$11

Filed

May 22

Insider

Name

Lewis William

Title

Chair and CEO

CIK

0001402051

Roles

Director Officer

Transaction Details

Transaction Date

2025-05-20

Code

M

Table

Non-Derivative

Ownership

Indirect

Equity Swap

No

Shares After

240,754

Footnotes

This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. | This is the weighted average sales price representing 9,489 shares sold at prices ranging from $66.34 to $67.32 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 4,480 shares sold at prices ranging from $67.38 to $68.37 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 7,088 shares sold at prices ranging from $68.38 to $68.59 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 2,863 shares sold at prices ranging from $66.42 to $67.35 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 2,251 shares sold at prices ranging from $67.49 to $68.47 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 1,716 shares sold at prices ranging from $68.50 to $68.59 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. | 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

Accession No.

0001628280-25-027339

Form Type

4

Issuer CIK

0001104506

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