Sara Bonstein, Chief Financial Officer at INSMED Inc (INSM), sold 3,820 shares at $18.47 ($72K) on 2023-05-16, disclosed to the SEC on 2023-05-17.
Open-market sale of $72k 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 | $19.30 | 2,210 | $43K | 58.9% |
| 2 | $18.47 | 1,610 | $30K | 41.1% |
| Total | $18.95 avg | 3,820 | $72K | 100% |
| Filing → |
| INSM | SELL | 2026-02-04 | $117K | — | Filing → |
| INSM | SELL | 2026-01-08 | $809K | — | Filing → |
| INSM | SELL | 2025-07-23 | $12.0M | — | Filing → |