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
INSMSale$1.1MJul 24SEC ↗
INSMSale$1.3MJul 10SEC ↗
INSMSale$2.2MJun 26SEC ↗
INSMSale$613KJun 10SEC ↗
INSMSale$778KJun 5SEC ↗
INSMSale$2.7MMay 20SEC ↗
INSMSale$1.5MMay 15SEC ↗
INSMSale$1.5MMay 6SEC ↗
INSMSale$1.5MApr 17SEC ↗
INSMSale$1.7MApr 8SEC ↗
INSMSale$1.5MMar 20SEC ↗
INSMSale$1.6MMar 5SEC ↗
INSMSale$1.6MFeb 23SEC ↗
INSMSale$2.0MFeb 11SEC ↗
INSMSale$470KFeb 4SEC ↗
INSMSale$1.7MJan 22SEC ↗
INSMSale$3.2MJan 13SEC ↗
INSMSale$710KJan 8SEC ↗
INSMSale$413KJan 8SEC ↗
INSMSale$561KJan 8SEC ↗
INSMSale$1.8MDec 19SEC ↗
INSMSale$2.2MDec 5SEC ↗