Updated Jul 16, 2026
Lewis William has filed 8 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $50.81M.
William Lewis is the Chair and CEO of Insmed Inc, a biopharmaceutical company focused on treating serious and rare diseases. He has held various roles within the company, contributing to its development of innovative therapies such as ARIKAYCE.
| Role | Chair and CEO, Director |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-10 | INSM | INSMED Inc | S — Open-market sale | 3.4K | $118.52 | $398K |
| 2026-07-10 | INSM | INSMED Inc | S — Open-market sale | 2.3K | $117.62 | $275K |
| 2026-07-10 | INSM | INSMED Inc | S — Open-market sale | 5.0K | $116.55 | $583K |
| 2026-07-10 | INSM | INSMED Inc | M — Option exercise | 4.4K | $17.16 | $76K |
| 2026-07-10 | INSM | INSMED Inc | M — Option exercise | 6.3K | $30.46 | $191K |
| 2026-06-26 | INSM | INSMED Inc | S — Open-market sale | 1.3K | $106.27 | $137K |
| 2026-06-26 | INSM | INSMED Inc | S — Open-market sale | 2.5K | $105.27 | $259K |
| 2026-06-26 | INSM | INSMED Inc | S — Open-market sale | 3.7K | $104.28 | $388K |
| 2026-06-26 | INSM | INSMED Inc | S — Open-market sale | 1.8K | $103.10 | $189K |
| 2026-06-26 | INSM | INSMED Inc | S — Open-market sale | 12.1K | $102.34 | $1.24M |
| 2026-06-26 | INSM | INSMED Inc | M — Option exercise | 8.9K | $17.16 | $152K |
| 2026-06-26 | INSM | INSMED Inc | M — Option exercise | 12.5K | $30.46 | $381K |
| 2026-06-10 | INSM | INSMED Inc | S — Open-market sale | 6.5K | $94.03 | $613K |
| 2026-06-05 | INSM | INSMED Inc | S — Open-market sale | 7.6K | $102.27 | $778K |
| 2026-05-20 | INSM | INSMED Inc | S — Open-market sale | 8.0K | $106.97 | $853K |
| 2026-05-20 | INSM | INSMED Inc | S — Open-market sale | 11.8K | $106.39 | $1.26M |
| 2026-05-20 | INSM | INSMED Inc | S — Open-market sale | 5.8K | $105.32 | $606K |
| 2026-05-20 | INSM | INSMED Inc | M — Option exercise | 4.4K | $17.16 | $76K |
| 2026-05-20 | INSM | INSMED Inc | M — Option exercise | 6.3K | $30.46 | $191K |
| 2026-05-15 | INSM | INSMED Inc | S — Open-market sale | 13.3K | $116.18 | $1.54M |
William Lewis is the Chair and CEO of Insmed Inc, a biopharmaceutical company focused on treating serious and rare diseases. He has held various roles within the company, contributing to its development of innovative therapies such as ARIKAYCE.…
8 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 104 open-market sales ($50.81M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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