| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Chair and CEO | Director | Chair &CEO +4 more
2 companies
Lewis William is a Chair and CEO at INSM, with reported holdings spanning 2 companies. Recent filings cover 2 purchases and 218 sales. Those positions are worth an estimated $27.4M at current prices.
Our model assigns Lewis William a middling insider score of 50/100, based on 69 past trades. Over a 12-month horizon, 31.1% of those trades were profitable, with an average 12-month return of -44.6%.
Lewis William's largest disclosed position is in INSM as Chair and CEO, worth about $27.4M. The recent filings there lean toward selling, a net 2,283,180 shares.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 19, 2026 | INSM Insmed Incorporated | Chair and CEO | Sale+OE10b5-1 | 10,699 | $143.52 | $1,535,542.10 | -3.4% | -31.6% | - | |
| Mar 5, 2026 | INSM Insmed Incorporated | Chair and CEO | Sale+OE10b5-1 | 10,699 | $146.03 | $1,562,327.58 | -3.4% | -27.6% | - | |
| Feb 19, 2026 | INSM Insmed Incorporated | Chair and CEO | Sale+OE10b5-1 | 10,699 | $150.97 | $1,615,256.86 | -3.4% | -33.0% | - | |
| Feb 9, 2026 | INSM Insmed Incorporated | Chair and CEO | Sale+OE10b5-1 | 13,396 | $147.79 | $1,979,763.59 | -4.3% | -30.5% | - | |
| Feb 3, 2026 | INSM Insmed Incorporated | Chair and CEO | Sell | 3,009 | $156.34 | $470,427.06 | -1.0% | -10.9% | - | |
| Jan 20, 2026 | INSM Insmed Incorporated | Chair and CEO | Sale+OE10b5-1 | 10,699 | $158.93 | $1,700,411.49 | -3.4% | -12.7% | - | |
| Jan 12, 2026 | INSM Insmed Inc | Chair and CEO | Sale+OE10b5-1 | 19,215 | $169.00 | $3,247,348.91 | -5.9% | -9.9% | - | |
| Jan 8, 2026 | INSM Insmed Inc | Chair and CEO | Sell | 9,676 | $174.03 | $1,683,949.58 | -3.0% | -5.9% | - | |
| Dec 18, 2025 | INSM Insmed Inc | Chair and CEO | Sale+OE10b5-1 | 10,699 | $166.97 | $1,786,456.65 | -3.4% | -14.3% | - | |
| Dec 4, 2025 | INSM Insmed Inc | Chair and CEO | Sale+OE10b5-1 | 10,699 | $205.62 | $2,199,914.53 | -3.4% | -27.0% | - |