Michael Alexander Smith Insider Trading Activity
Michael Alexander Smith has been net-selling over the last 12 months with 0 purchases and 25 sales across 1 company.
INSM is the most-traded position with 25 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 | — | -8.1% | 32% | 31 |
| 90 days | — | -18.5% | 57% | 28 |
| 120 days | — | -12.8% | 56% | 27 |
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 |
|---|---|---|---|---|---|---|---|---|
Jun 22, 2026 | INSM | Sell | 1,806 | $95.82 | $173K | −4.6% | Chief Legal Officer | |
May 22, 2026 | INSM | Sell | 6,149 | $108.47 | $667K | −12.9% | Chief Legal Officer | |
May 13, 2026 | INSM | Sell | 4,109 | $116.18 | $477K | −7.9% | Chief Legal Officer | |
Mar 30, 2026 | INSM | Sell | 19,638 | $150.98 | $3.0M | −27.5% | Chief Legal Officer | |
Feb 24, 2026 | INSM | Sell | 4,151 | $155.06 | $644K | −5.8% | Chief Legal Officer | |
Feb 24, 2026 | INSM | Sell | 15,771 | $156.53 | $2.5M | −23.3% | Chief Legal Officer | |
Feb 24, 2026 | INSM | Sell | 4,852 | $153.93 | $747K | −6.3% | Chief Legal Officer | |
Feb 3, 2026 | INSM | Sell | 640 | $156.27 | $100K | −1.1% | Chief Legal Officer | |
Jan 8, 2026 | INSM | Sell | 1,053 | $174.17 | $183K | −1.8% | Chief Legal Officer | |
Jan 7, 2026 | INSM | Sell | 709 | $175.07 | $124K | −1.2% | Chief Legal Officer | |
Jan 6, 2026 | INSM | Sell | 1,396 | $173.33 | $242K | −2.3% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 7,619 | $181.88 | $1.4M | −9.4% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 4,286 | $182.60 | $783K | −5.9% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 4,032 | $183.92 | $742K | −5.9% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 3,243 | $184.91 | $600K | −5.0% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 3,636 | $185.93 | $676K | −5.9% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 1,572 | $187.15 | $294K | −2.7% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 1,400 | $187.97 | $263K | −2.5% | Chief Legal Officer | |
Nov 3, 2025 | INSM | Sell | 1,342 | $181.01 | $243K | −1.6% | Chief Legal Officer | |
Sep 2, 2025 | INSM | Sell | 1,100 | $142.06 | $156K | −1.4% | Chief Legal Officer | |
Sep 2, 2025 | INSM | Sell | 7,391 | $143.16 | $1.1M | −9.6% | Chief Legal Officer | |
Sep 2, 2025 | INSM | Sell | 8,300 | $144.16 | $1.2M | −12.0% | Chief Legal Officer | |
Sep 2, 2025 | INSM | Sell | 4,944 | $145.18 | $718K | −8.1% | Chief Legal Officer | |
Sep 2, 2025 | INSM | Sell | 1,183 | $145.89 | $173K | −2.1% | Chief Legal Officer | |
Sep 2, 2025 | INSM | Sell | 1,354 | $141.16 | $191K | −1.7% | Chief Legal Officer | |
Jul 15, 2025 | INSM | Sell | 933 | $102.51 | $96K | −1.4% | Chief Legal Officer | |
Jul 11, 2025 | INSM | Sell | 748 | $96.41 | $72K | −1.1% | Chief Legal Officer | |
Jun 5, 2025 | INSM | Sell | 1,879 | $73.50 | $138K | −2.7% | Chief Legal Officer | |
Jun 3, 2025 | INSM | Sell | 1,448 | $71.50 | $104K | −2.0% | Chief Legal Officer | |
May 30, 2025 | INSM | Sell | 6,327 | $68.56 | $434K | −6.5% | Chief Legal Officer | |
May 30, 2025 | INSM | Sell | 20,000 | $70.00 | $1.4M | −22.0% | Chief Legal Officer |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| INSM | INSMED Inc | 31 | $19.5M |
Other insiders at INSMED Inc
7 other tracked filers at INSM.