| 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 170 sales. Those positions are worth an estimated $33.1M at current prices.
Our model assigns Lewis William a middling insider score of 50/100, based on 53 past trades. Over a 12-month horizon, 31.8% of those trades were profitable, with an average 12-month return of -45.6%.
Lewis William's largest disclosed position is in INSM as Chair And CEO, worth about $32.8M. The recent filings there lean toward selling, a net 2,106,818 shares.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Jul 23, 2026 | INSM Insmed Incorporated | Chair And CEO | Sale+OE | 10,700 | $106.06 | $1,134,890.32 | -2.0% | - | - | |
| Jan 12, 2026 | INSM Insmed Inc | Chair And CEO | Sale+OE | 19,215 | $169.00 | $3,247,348.91 | -0.9% | -7.7% | - | |
| Jan 8, 2026 | INSM Insmed Inc | Chair And CEO | Sell | 9,676 | $174.03 | $1,683,949.58 | -1.0% | -5.9% | - | |
| Dec 18, 2025 | INSM Insmed Inc | Chair And CEO | Sale+OE | 10,699 | $166.97 | $1,786,456.65 | -0.3% | -14.3% | - | |
| Dec 4, 2025 | INSM Insmed Inc | Chair And CEO | Sale+OE | 10,699 | $205.62 | $2,199,914.53 | -0.9% | -27.0% | - | |
| Aug 18, 2025 | INSM Insmed Inc | Chair And CEO | Sale+OE | 6,865 | $128.40 | $881,470.20 | -1.0% | +55.1% | - | |
| Aug 4, 2025 | INSM Insmed Inc | Chair And CEO | Sale+OE | 6,830 | $109.81 | $750,008.30 | -1.0% | +67.4% | -11.4% | |
| Jul 15, 2025 | INSM Insmed Inc | Chair And CEO | Sale+OE | 6,830 | $102.37 | $699,220.40 | -1.0% | +59.4% | +12.4% | |
| Jul 1, 2025 | INSM Insmed Inc | Chair And CEO | Sale+OE | 6,830 | $98.33 | $671,612.00 | -1.0% | +45.1% | +9.6% | |
| Jun 16, 2025 | INSM Insmed Inc | Chair And CEO | Sale+OE | 135,009 | $100.39 | $13,553,743.64 | -5.3% | +40.9% | -6.0% |