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▼ SELL 10b5-1 Plan

$ Value

$4.2M

Shares

41,784

Price

$101

Filed

Jun 18

Insider

Name

Lewis William

Title

Chair and CEO

CIK

0001402051

Roles

Director Officer

Transaction Details

Transaction Date

2025-06-16

Code

S

Table

Non-Derivative

Ownership

Indirect

Equity Swap

No

Shares After

233,924

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 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. | 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. | 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. | 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. | 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. | 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. | 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. | 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. | 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.

0001628280-25-032117

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