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▼ SELL 10b5-1 Plan

$ Value

$718K

Shares

4,944

Price

$145

Filed

Sep 4

Insider

Name

Smith Michael Alexander

Title

Chief Legal Officer

CIK

0001870278

Roles

Officer

Transaction Details

Transaction Date

2025-09-02

Code

S

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

56,085

Footnotes

This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on February 27, 2025, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. | This is the weighted average sales price representing 1,354 shares sold at prices ranging from $140.58 to $141.50 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 1,100 shares sold at prices ranging from $141.58 to $142.55 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 7,391 shares sold at prices ranging from $142.70 to $143.63 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 8,300 shares sold at prices ranging from $143.72 to $144.71 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 4,944 shares sold at prices ranging from $144.72 to $145.57 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 1,183 shares sold at prices ranging from $145.75 to $146.04 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.

0001870278-25-000009

Form Type

4

Issuer CIK

0001104506

Smith Michael Alexander's History

Date Ticker Type Value
2026-03-30 INSM M $96K
2026-03-30 INSM M $390K
2026-03-30 INSM $3.0M
2026-03-30 INSM M $0
2026-03-30 INSM M $0
2026-01-02 INSM A
2026-01-02 INSM A $0
2025-11-03 INSM M $644K
2025-11-03 INSM $243K
2025-11-03 INSM $1.4M

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