William Lewis, Chair and CEO at INSMED Inc (INSM), sold 20,997 shares at $162.26 ($3.5M) on 2025-12-18, disclosed to the SEC on 2025-12-19.
Scheduled sale ($3.5M) by Chair and CEO under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $162.26 | 350 | $57K | 1.6% |
| 2 | $163.19 | 1,465 | $239K | 6.8% |
| 3 | $163.19 | 1,465 | $239K | 6.8% |
| 4 | $164.24 | 447 | $73K | 2.1% |
| 5 | $164.24 | 447 | $73K | 2.1% |
| 6 | $165.21 | 697 |
| $115K |
| 3.3% |
| 7 | $165.21 | 697 | $115K | 3.3% |
| 8 | $166.60 | 1,783 | $297K | 8.5% |
| 9 | $166.60 | 1,783 | $297K | 8.5% |
| 10 | $167.29 | 1,431 | $239K | 6.8% |
| 11 | $167.29 | 1,431 | $239K | 6.8% |
| 12 | $168.54 | 2,175 | $367K | 10.5% |
| 13 | $168.54 | 2,175 | $367K | 10.5% |
| 14 | $169.58 | 1,938 | $329K | 9.4% |
| 15 | $169.58 | 1,938 | $329K | 9.4% |
| 16 | $170.26 | 362 | $62K | 1.8% |
| 17 | $170.26 | 362 | $62K | 1.8% |
| 18 | $171.20 | 51 | $9K | 0.2% |
| Total | $167.04 avg | 20,997 | $3.5M | 100% |
| Filing → |
| INSM | SELL | 2026-06-26 | $2.2M | — | Filing → |
| INSM | SELL | 2026-06-10 | $613K | — | Filing → |
| INSM | SELL | 2026-06-05 | $778K | — | Filing → |