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▼ SELL

$ Value

$521K

Shares

7,699

Price

$68

Filed

May 15

Insider

Name

Lewis William

Title

Chair and CEO

CIK

0001402051

Roles

Director Officer

Transaction Details

Transaction Date

2025-05-13

Code

S

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

316,744

Footnotes

Shares sold to satisfy tax withholding obligations upon the vesting of Restricted Stock Units and to cover related broker fees. | This is the weighted average sales price representing 9,743 shares sold at prices ranging from $66.02 to $67.00 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 7,699 shares sold at prices ranging from $67.11 to $67.81 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.

Filing Info

Accession No.

0001628280-25-025987

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