Sara Bonstein, Chief Financial Officer at INSMED Inc (INSM), sold 3,158 shares at $71.50 ($226K) on 2025-06-03, disclosed to the SEC on 2025-06-04.
Open-market sale of $226k INSM by Chief Financial Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $71.50 | 1,579 | $113K | 50.0% |
| 2 | $71.50 | 1,579 | $113K | 50.0% |
| Total | $71.50 avg | 3,158 | $226K | 100% |
| Filing → |
| INSM | SELL | 2026-02-04 | $117K | — | Filing → |
| INSM | SELL | 2026-01-08 | $809K | — | Filing → |
| INSM | SELL | 2025-07-23 | $12.0M | — | Filing → |