Bonstein Sara Insider Trading Activity
Bonstein Sara has been net-selling over the last 12 months with 0 purchases and 5 sales across 1 company.
INSM is the most-traded position with 5 trades. The largest single transaction was a sale of INSM for $961K on May 13, 2026.
Performance Scorecard
Forward stock performance after each transaction by Bonstein Sara. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -5.9% | 28% | 18 |
| 90 days | — | -46.9% | 24% | 17 |
| 120 days | — | -56.1% | 24% | 17 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersINSM · INSMED Inc
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
May 13, 2026 | INSM | Sell | 8,272 | $116.18 | $961K | −10.4% | CFO | |
Feb 3, 2026 | INSM | Sell | 748 | $156.34 | $117K | −0.9% | CFO | |
Jan 8, 2026 | INSM | Sell | 1,447 | $174.17 | $252K | −1.8% | CFO | |
Jan 7, 2026 | INSM | Sell | 1,678 | $175.07 | $294K | −2.0% | CFO | |
Jan 6, 2026 | INSM | Sell | 1,517 | $173.33 | $263K | −1.8% | CFO | |
Jul 21, 2025 | INSM | Sell | 32,090 | $102.38 | $3.3M | −24.3% | CFO | |
Jul 21, 2025 | INSM | Sell | 26,310 | $103.03 | $2.7M | −26.4% | CFO | |
Jul 7, 2025 | INSM | Sell | 35,583 | $95.66 | $3.4M | −25.1% | CFO | |
Jul 7, 2025 | INSM | Sell | 22,181 | $96.19 | $2.1M | −20.9% | CFO | |
Jun 23, 2025 | INSM | Sell | 49,104 | $101.71 | $5.0M | −32.5% | CFO | |
Jun 23, 2025 | INSM | Sell | 8,661 | $102.15 | $885K | −8.5% | CFO | |
Jun 10, 2025 | INSM | Sell | 7,277 | $87.12 | $634K | −4.5% | CFO | |
Jun 10, 2025 | INSM | Sell | 7,310 | $88.29 | $645K | −4.7% | CFO | |
Jun 10, 2025 | INSM | Sell | 20,926 | $88.99 | $1.9M | −14.3% | CFO | |
Jun 10, 2025 | INSM | Sell | 15,825 | $89.85 | $1.4M | −12.6% | CFO | |
Jun 10, 2025 | INSM | Sell | 6,328 | $90.93 | $575K | −5.8% | CFO | |
Jun 10, 2025 | INSM | Sell | 100 | $91.66 | $9K | −0.1% | CFO | |
Jun 3, 2025 | INSM | Sell | 1,579 | $71.50 | $113K | −1.4% | CFO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| INSM | INSMED Inc | 18 | $24.6M |
Other insiders at INSMED Inc
7 other tracked filers at INSM.