Michael Alexander Smith 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 Michael reports to the SEC
Open-market buys and sales
30 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jun 22, 2026 | INSM | ↓ Sell | 1,806 | $95.82 | $173K | Direct | Jun 24, 2026 (2d) |
| May 22, 2026 | INSM | ↓ Sell | 6,149 | $108.47 | $667K | Direct | May 22, 2026 (0d) |
| May 13, 2026 | INSM | ↓ Sell | 4,109 | $116.18 | $477K | Direct | May 15, 2026 (2d) |
| Mar 30, 2026 | INSM | ↓ Sell | 19,638 | $150.98 | $3.0M | Direct | Mar 31, 2026 (1d) |
| Feb 24, 2026 | INSM | ↓ Sell | 24,774 | $155.77 | $3.9M | Direct | Feb 25, 2026 (1d) |
| Feb 3, 2026 | INSM | ↓ Sell | 640 | $156.27 | $100K | Direct | Feb 4, 2026 (1d) |
| Jan 8, 2026 | INSM | ↓ Sell | 3,158 | $174.00 | $549K | Direct | Jan 8, 2026 (0d) |
| Nov 3, 2025 | INSM | ↓ Sell | 27,130 | $183.78 | $5.0M | Direct | Nov 5, 2025 (2d) |
| Sep 2, 2025 | INSM | ↓ Sell | 24,272 | $143.89 | $3.5M | Direct | Sep 4, 2025 (2d) |
| Jul 15, 2025 | INSM | ↓ Sell | 1,681 | $99.80 | $168K | Direct | Jul 15, 2025 (0d) |
| Jun 5, 2025 | INSM | ↓ Sell | 1,879 | $73.50 | $138K | Direct | Jun 6, 2025 (1d) |
| Jun 3, 2025 | INSM | ↓ Sell | 1,448 | $71.50 | $104K | Direct | Jun 4, 2025 (1d) |
| May 30, 2025 | INSM | ↓ Sell | 26,327 | $69.65 | $1.8M | Direct | Jun 3, 2025 (4d) |
| May 14, 2025 | INSM | ↓ Sell | 4,816 | $67.62 | $326K | Direct | May 15, 2025 (1d) |
| Feb 6, 2025 | INSM | ↓ Sell | 20,650 | $80.90 | $1.7M | Direct | Feb 7, 2025 (1d) |
| Jan 10, 2025 | INSM | ↓ Sell | 3,689 | $65.82 | $243K | Direct | Jan 10, 2025 (0d) |
| Sep 13, 2024 | INSM | ↓ Sell | 27,871 | $74.35 | $2.1M | Direct | Sep 16, 2024 (3d) |
| Aug 12, 2024 | INSM | ↓ Sell | 88,070 | $72.96 | $6.4M | Direct | Aug 14, 2024 (2d) |
| May 28, 2024 | INSM | ↓ Sell | 44,722 | $49.53 | $2.2M | Direct | May 30, 2024 (2d) |
| May 14, 2024 | INSM | ↓ Sell | 5,093 | $25.40 | $129K | Direct | May 15, 2024 (1d) |
| Jan 9, 2024 | INSM | ↓ Sell | 2,373 | $28.76 | $68K | Direct | Jan 11, 2024 (2d) |
| Jan 5, 2024 | INSM | ↓ Sell | 627 | $29.30 | $18K | Direct | Jan 5, 2024 (0d) |
| Jul 11, 2023 | INSM | ↓ Sell | 740 | $20.18 | $15K | Direct | Jul 13, 2023 (2d) |
| May 17, 2023 | INSM | ↓ Sell | 3,635 | $18.77 | $68K | Direct | May 17, 2023 (0d) |
| Jan 10, 2023 | INSM | ↓ Sell | 1,836 | $17.93 | $33K | Direct | Jan 12, 2023 (2d) |
| Jan 5, 2023 | INSM | ↓ Sell | 720 | $19.72 | $14K | Direct | Jan 6, 2023 (1d) |
| Jul 12, 2022 | INSM | ↓ Sell | 941 | $23.40 | $22K | Direct | Jul 12, 2022 (0d) |
| May 17, 2022 | INSM | ↓ Sell | 1,488 | $19.82 | $29K | Direct | May 18, 2022 (1d) |
| Jan 11, 2022 | INSM | ↓ Sell | 407 | $25.11 | $10K | Direct | Jan 13, 2022 (2d) |
| Jan 6, 2022 | INSM | ↓ Sell | 1,136 | $27.06 | $31K | Direct | Jan 7, 2022 (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 Michael Alexander Smith's insider trades
Michael Alexander Smith is Chief Legal Officer at INSMED (INSM). Since Jan 6, 2022, Michael has reported no open-market purchases and 30 sales worth $32.9M on SEC Form 4. In the last 12 months: 7 sales ($8.8M).
Their filings also include grants and awards (11 filings), option exercises (7 filings), shares withheld for taxes (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.