Lewis William
Chair and CEO
Lewis William has filed 22 SEC Form 4 filings (106 transaction rows) across 2 companies, including INSM, NAMS, with disclosures dating back to 2025. 22 of those filings fall inside the rolling window. Most recent filing: Jul 24, 2026.
Companies traded
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$32.8M
reported sales (SEC code S)
Companies
2
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| INSM | Chair and CEO | Sale | 10,700 | $1.1M | Jul 24 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.3M | Jul 10 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 21,398 | $2.2M | Jun 26 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 6,515 | $613K | Jun 10 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 7,605 | $778K | Jun 5 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 25,564 | $2.7M | May 20 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 13,283 | $1.5M | May 15 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.5M | May 6 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.5M | Apr 17 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.7M | Apr 8 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.5M | Mar 20 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.6M | Mar 5 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.6M | Feb 23 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 13,396 | $2.0M | Feb 11 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 3,009 | $470K | Feb 4 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.7M | Jan 22 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 19,215 | $3.2M | Jan 13 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 4,096 | $710K | Jan 8 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 2,357 | $413K | Jan 8 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 3,223 | $561K | Jan 8 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $1.8M | Dec 19 | SEC ↗ | |
| INSM | Chair and CEO | Sale | 10,699 | $2.2M | Dec 5 | SEC ↗ |