Sara Bonstein sold $117k of INSM
Chief Financial Officer at INSMED Inc. 748 shares at an average of $156.34, traded Feb 3, 2026, filed Feb 4, 2026.
Score components
- +22RoleCFO
- +10Trade size$117k at market
- 0Share of holdings soldSold 0.9% of holdings
- +15Cluster5 insiders selling within 14 days
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001604019-26-000006, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Feb 3, 2026 | SOpen-market sale Common Stock | -748 | $156.34 | $117k | 79,758 | Feb 4, 2026 |
Related signals
Other insiders at INSMED Inc and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 50Moderate | INSMsell INSMED Inc | David R Brennan director | $3.1M 25,000 shares | -39% | |
| 23Weak | INSMED Inc | Michael Alexander Smith Chief Legal Officer | $3.0M 19,638 shares | -27% | |
| 23Weak | INSMED Inc | William Lewis Chair and CEO | $1.5M 10,699 shares | -3% | |
| 23Weak | INSMED Inc | William Lewis Chair and CEO | $1.6M 10,699 shares | -3% | |
| 23Weak | INSMED Inc | Michael Alexander Smith Chief Legal Officer | $3.9M 24,774 shares | -32% | |
| 30Weak | INSMED Inc | William Lewis Chair and CEO | $1.6M 10,699 shares | -3% | |
| 30Weak | INSMED Inc | William Lewis Chair and CEO | $2.0M 13,396 shares | -4% | |
| 21Weak | INSMED Inc | Martina Flammer M.D. Chief Medical Officer | $132k 869 shares | -1% | |
| 45Moderate | INSMED Inc | Roger Adsett Chief Operating Officer | $124k 791 shares | -1% | |
| 20Weak | INSMED Inc | Martina Flammer M.D. Chief Medical Officer | $1.4M 8,777 shares | -9% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.