Michael Alexander Smith Insider Trading Activity
Michael Alexander Smith has been net-selling over the last 12 months with 0 purchases and 26 sales across 1 company.
INSM is the most-traded position with 26 trades. The largest single transaction was a sale of INSM for $3.0M on Mar 30, 2026.
Performance Scorecard
Forward stock performance after each transaction by Michael Alexander Smith. 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 | — | -9.4% | 29% | 28 |
| 90 days | — | -20.4% | 56% | 27 |
| 120 days | — | -18.6% | 50% | 24 |
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 | ROLE |
|---|---|---|---|---|---|---|
| May 22, 2026 | INSM | Sell | 6,149 | $108.47 | $667K | Chief Legal Officer |
| May 13, 2026 | INSM | Sell | 4,109 | $116.18 | $477K | Chief Legal Officer |
| Mar 30, 2026 | INSM | Sell | 19,638 | $150.98 | $3.0M | Chief Legal Officer |
| Feb 24, 2026 | INSM | Sell | 4,852 | $153.93 | $747K | Chief Legal Officer |
| Feb 24, 2026 | INSM | Sell | 4,151 | $155.06 | $644K | Chief Legal Officer |
| Feb 24, 2026 | INSM | Sell | 15,771 | $156.53 | $2.5M | Chief Legal Officer |
| Feb 3, 2026 | INSM | Sell | 640 | $156.27 | $100K | Chief Legal Officer |
| Jan 8, 2026 | INSM | Sell | 1,053 | $174.17 | $183K | Chief Legal Officer |
| Jan 7, 2026 | INSM | Sell | 709 | $175.07 | $124K | Chief Legal Officer |
| Jan 6, 2026 | INSM | Sell | 1,396 | $173.33 | $242K | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 3,636 | $185.93 | $676K | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 1,342 | $181.01 | $243K | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 7,619 | $181.88 | $1.4M | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 4,286 | $182.60 | $783K | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 4,032 | $183.92 | $742K | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 3,243 | $184.91 | $600K | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 1,572 | $187.15 | $294K | Chief Legal Officer |
| Nov 3, 2025 | INSM | Sell | 1,400 | $187.97 | $263K | Chief Legal Officer |
| Sep 2, 2025 | INSM | Sell | 8,300 | $144.16 | $1.2M | Chief Legal Officer |
| Sep 2, 2025 | INSM | Sell | 1,100 | $142.06 | $156K | Chief Legal Officer |
| Sep 2, 2025 | INSM | Sell | 7,391 | $143.16 | $1.1M | Chief Legal Officer |
| Sep 2, 2025 | INSM | Sell | 1,354 | $141.16 | $191K | Chief Legal Officer |
| Sep 2, 2025 | INSM | Sell | 4,944 | $145.18 | $718K | Chief Legal Officer |
| Sep 2, 2025 | INSM | Sell | 1,183 | $145.89 | $173K | Chief Legal Officer |
| Jul 15, 2025 | INSM | Sell | 933 | $102.51 | $96K | Chief Legal Officer |
| Jul 11, 2025 | INSM | Sell | 748 | $96.41 | $72K | Chief Legal Officer |
| Jun 5, 2025 | INSM | Sell | 1,879 | $73.50 | $138K | Chief Legal Officer |
| Jun 3, 2025 | INSM | Sell | 1,448 | $71.50 | $104K | Chief Legal Officer |
| May 30, 2025 | INSM | Sell | 6,327 | $68.56 | $434K | Chief Legal Officer |
| May 30, 2025 | INSM | Sell | 20,000 | $70.00 | $1.4M | Chief Legal Officer |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| INSM | INSMED Inc | 30 | $19.3M |
Other insiders at INSMED Inc
7 other tracked filers at INSM.