Sara Bonstein insider trades: INSMED (INSM) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Sara reports to the SEC
Open-market buys and sales
28 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 13, 2026 | INSM | ↓ Sell | 8,272 | $116.18 | $961K | Direct | May 15, 2026 (2d) |
| Feb 3, 2026 | INSM | ↓ Sell | 748 | $156.34 | $117K | Direct | Feb 4, 2026 (1d) |
| Jan 8, 2026 | INSM | ↓ Sell | 4,642 | $174.22 | $809K | Direct | Jan 8, 2026 (0d) |
| Jul 21, 2025 | INSM | ↓ Sell | 58,400 | $102.67 | $6.0M | Direct | Jul 23, 2025 (2d) |
| Jul 7, 2025 | INSM | ↓ Sell | 57,764 | $95.86 | $5.5M | Direct | Jul 9, 2025 (2d) |
| Jun 23, 2025 | INSM | ↓ Sell | 57,765 | $101.78 | $5.9M | Direct | Jun 25, 2025 (2d) |
| Jun 10, 2025 | INSM | ↓ Sell | 57,766 | $89.12 | $5.1M | Direct | Jun 12, 2025 (2d) |
| Jun 3, 2025 | INSM | ↓ Sell | 1,579 | $71.50 | $113K | Direct | Jun 4, 2025 (1d) |
| May 14, 2025 | INSM | ↓ Sell | 10,504 | $67.47 | $709K | Direct | May 15, 2025 (1d) |
| Feb 18, 2025 | INSM | ↓ Sell | 18,322 | $80.31 | $1.5M | Direct | Feb 20, 2025 (2d) |
| Feb 12, 2025 | INSM | ↓ Sell | 18,321 | $80.00 | $1.5M | Direct | Feb 13, 2025 (1d) |
| Feb 6, 2025 | INSM | ↓ Sell | 28,390 | $80.90 | $2.3M | Direct | Feb 7, 2025 (1d) |
| Jan 10, 2025 | INSM | ↓ Sell | 6,000 | $65.43 | $393K | Direct | Jan 10, 2025 (0d) |
| May 29, 2024 | INSM | ↓ Sell | 241,288 | $50.00 | $12.1M | Direct | May 30, 2024 (1d) |
| May 14, 2024 | INSM | ↓ Sell | 11,088 | $25.32 | $281K | Direct | May 15, 2024 (1d) |
| Jan 9, 2024 | INSM | ↓ Sell | 4,497 | $29.18 | $131K | Direct | Jan 11, 2024 (2d) |
| Dec 22, 2023 | INSM | ↓ Sell | 13,199 | $30.00 | $396K | Direct | Dec 22, 2023 (0d) |
| May 16, 2023 | INSM | ↓ Sell | 3,820 | $18.95 | $72K | Direct | May 17, 2023 (1d) |
| Jan 10, 2023 | INSM | ↓ Sell | 2,857 | $18.12 | $52K | Direct | Jan 12, 2023 (2d) |
| May 16, 2022 | INSM | ↓ Sell | 1,433 | $18.51 | $27K | Direct | May 18, 2022 (2d) |
| Jan 11, 2022 | INSM | ↓ Sell | 1,154 | $25.11 | $29K | Direct | Jan 13, 2022 (2d) |
| Jan 16, 2020 | ONCS | ↓ Sell | 1,351 | $2.08 | $3K | Direct | Jan 21, 2020 (5d) |
| Oct 16, 2019 | ONCS | ↓ Sell | 1,111 | $2.01 | $2K | Direct | Oct 18, 2019 (2d) |
| Jan 3, 2018 | ADXS | ↓ Sell | 5,224 | $3.18 | $17K | Direct | Jan 3, 2018 (0d) |
| Nov 6, 2017 | ADXS | ↓ Sell | 3,862 | $3.30 | $13K | Direct | Nov 6, 2017 (0d) |
| Nov 2, 2017 | ADXS | ↓ Sell | 12,734 | $3.19 | $41K | Direct | Nov 2, 2017 (0d) |
| Dec 30, 2016 | ADXS | ↓ Sell | 5,520 | $7.37 | $41K | Direct | Jan 3, 2017 (4d) |
| Feb 24, 2016 | ADXS | ↓ Sell | 15,037 | $5.58 | $84K | Direct | Feb 25, 2016 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other INSM insiders
Open-market trades in the last 12 months
About Sara Bonstein's insider trades
Sara Bonstein is Chief Financial Officer at INSMED (INSM). Since Feb 24, 2016, Sara has reported no open-market purchases and 28 sales worth $44.1M on SEC Form 4. In the last 12 months: 3 sales ($1.9M).
Their filings also include grants and awards (79 filings), shares withheld for taxes (41 filings), option exercises (5 filings), shares returned to the company (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every INSM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.