Sara Bonstein, Chief Financial Officer at INSMED Inc (INSM), sold 4,642 shares at $173.33 ($809K) on 2026-01-06, disclosed to the SEC on 2026-01-08.
Seasonal sale ($809k) by Chief Financial Officer — this insider has traded INSM in January in at least three consecutive prior years. Pattern-driven, low signal.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $173.33 | 1,517 | $263K | 32.5% |
| 2 | $175.07 | 1,678 | $294K | 36.3% |
| 3 | $174.17 | 1,447 | $252K | 31.2% |
| Total | $174.22 avg | 4,642 | $809K | 100% |
| Filing → |
| INSM | SELL | 2026-02-04 | $117K | — | Filing → |
| INSM | SELL | 2025-07-23 | $12.0M | — | Filing → |
| INSM | SELL | 2025-07-09 | $11.1M | — | Filing → |