SEC Form 4 · accession 0001402051-26-000035
INSMED Inc · INSM
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
William Lewis
Officer — Chair and CEO · Director
Period of report
Jun 8, 2026
Accepted (ET)
Jun 10, 2026 · 4:05 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001104506
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Jun 8, 2026 | S | 6,515 | $94.03 | D | 258,917 | D | |
| Common Stock | holding | — | — | — | 233,924 | I | By trust |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1This transaction was effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person on September 4, 2025 in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.