Martina Flammer, M.D. Insider Trading Activity
Corporate InsiderChief Medical Officer · CIK 1796960
Martina Flammer, M.D. has been net-selling over the last 12 months with 0 purchases and 43 sales across 1 company.
INSM is the most-traded position with 43 trades. The largest single transaction was a sale of INSM for $9.3M on Sep 2, 2025.
Performance Scorecard
Forward stock performance after each transaction by Martina Flammer, M.D.. 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 | — | +4.7% | 68% | 44 |
| 90 days | — | -6.2% | 74% | 39 |
| 120 days | — | +8.0% | 74% | 39 |
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 |
|---|---|---|---|---|---|---|---|---|
Jul 6, 2026 | INSM | Sell | 7,448 | $110.60 | $824K | −11.0% | Chief Medical Officer | |
Jul 6, 2026 | INSM | Sell | 4,854 | $109.02 | $529K | −6.7% | Chief Medical Officer | |
May 14, 2026 | INSM | Sell | 10,479 | $117.54 | $1.2M | −13.9% | Chief Medical Officer | |
May 13, 2026 | INSM | Sell | 4,470 | $112.76 | $504K | −5.4% | Chief Medical Officer | |
May 13, 2026 | INSM | Sell | 3,384 | $116.18 | $393K | −4.3% | Chief Medical Officer | |
May 11, 2026 | INSM | Sell | 12,119 | $100.35 | $1.2M | −12.6% | Chief Medical Officer | |
May 11, 2026 | INSM | Sell | 830 | $101.18 | $84K | −1.0% | Chief Medical Officer | |
Feb 5, 2026 | INSM | Sell | 869 | $152.44 | $132K | −1.0% | Chief Medical Officer | |
Feb 3, 2026 | INSM | Sell | 795 | $155.77 | $124K | −0.9% | Chief Medical Officer | |
Feb 2, 2026 | INSM | Sell | 3,042 | $155.46 | $473K | −3.5% | Chief Medical Officer | |
Feb 2, 2026 | INSM | Sell | 100 | $156.86 | $16K | −0.1% | Chief Medical Officer | |
Feb 2, 2026 | INSM | Sell | 928 | $153.16 | $142K | −1.0% | Chief Medical Officer | |
Feb 2, 2026 | INSM | Sell | 3,349 | $154.56 | $518K | −3.7% | Chief Medical Officer | |
Feb 2, 2026 | INSM | Sell | 563 | $152.06 | $86K | −0.6% | Chief Medical Officer | |
Jan 9, 2026 | INSM | Sell | 1,887 | $186.19 | $351K | −2.2% | Chief Medical Officer | |
Jan 8, 2026 | INSM | Sell | 1,660 | $173.87 | $289K | −1.8% | Chief Medical Officer | |
Jan 8, 2026 | INSM | Sell | 3,251 | $174.17 | $566K | −3.6% | Chief Medical Officer | |
Jan 7, 2026 | INSM | Sell | 1,434 | $175.84 | $252K | −1.5% | Chief Medical Officer | |
Jan 6, 2026 | INSM | Sell | 4,783 | $173.47 | $830K | −4.6% | Chief Medical Officer | |
Jan 6, 2026 | INSM | Sell | 957 | $175.01 | $167K | −1.0% | Chief Medical Officer | |
Jan 6, 2026 | INSM | Sell | 1,615 | $173.33 | $280K | −1.7% | Chief Medical Officer | |
Jan 6, 2026 | INSM | Sell | 2,830 | $174.21 | $493K | −2.9% | Chief Medical Officer | |
Jan 5, 2026 | INSM | Sell | 286 | $171.92 | $49K | −0.3% | Chief Medical Officer | |
Jan 5, 2026 | INSM | Sell | 2,799 | $169.29 | $474K | −2.6% | Chief Medical Officer | |
Jan 5, 2026 | INSM | Sell | 3,205 | $170.61 | $547K | −3.1% | Chief Medical Officer | |
Jan 5, 2026 | INSM | Sell | 2,836 | $171.19 | $485K | −2.8% | Chief Medical Officer | |
Jan 5, 2026 | INSM | Sell | 1,820 | $173.45 | $316K | −1.9% | Chief Medical Officer | |
Jan 5, 2026 | INSM | Sell | 655 | $174.28 | $114K | −0.7% | Chief Medical Officer | |
Jan 5, 2026 | INSM | Sell | 702 | $175.73 | $123K | −0.7% | Chief Medical Officer | |
Dec 1, 2025 | INSM | Sell | 1,559 | $207.73 | $324K | −1.8% | Chief Medical Officer | |
Dec 1, 2025 | INSM | Sell | 5,886 | $207.03 | $1.2M | −6.5% | Chief Medical Officer | |
Dec 1, 2025 | INSM | Sell | 1,450 | $205.98 | $299K | −1.6% | Chief Medical Officer | |
Nov 11, 2025 | INSM | Sell | 10,622 | $190.33 | $2.0M | −11.0% | Chief Medical Officer | |
Nov 11, 2025 | INSM | Sell | 2,913 | $191.04 | $556K | −3.4% | Chief Medical Officer | |
Nov 11, 2025 | INSM | Sell | 5,467 | $188.38 | $1.0M | −4.8% | Chief Medical Officer | |
Nov 11, 2025 | INSM | Sell | 12,224 | $189.36 | $2.3M | −11.2% | Chief Medical Officer | |
Sep 2, 2025 | INSM | Sell | 35,245 | $143.16 | $5.0M | −14.4% | Chief Medical Officer | |
Sep 2, 2025 | INSM | Sell | 28,063 | $144.05 | $4.0M | −13.4% | Chief Medical Officer | |
Sep 2, 2025 | INSM | Sell | 63,782 | $145.33 | $9.3M | −35.1% | Chief Medical Officer | |
Sep 2, 2025 | INSM | Sell | 34,615 | $146.05 | $5.1M | −29.4% | Chief Medical Officer | |
Sep 2, 2025 | INSM | Sell | 19,066 | $141.27 | $2.7M | −7.1% | Chief Medical Officer | |
Sep 2, 2025 | INSM | Sell | 5,877 | $142.03 | $835K | −2.3% | Chief Medical Officer | |
Aug 4, 2025 | INSM | Sell | 8,715 | $109.50 | $954K | −9.5% | Chief Medical Officer | |
Jun 11, 2025 | INSM | Sell | 19,423 | $94.50 | $1.8M | −18.9% | Chief Medical Officer | |
Jun 10, 2025 | INSM | Sell | 25,740 | $88.64 | $2.3M | −23.6% | Chief Medical Officer | |
Jun 3, 2025 | INSM | Sell | 1,686 | $71.50 | $121K | −2.0% | Chief Medical Officer |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| INSM | INSMED Inc | 46 | $51.5M |
Other insiders at INSMED Inc
7 other tracked filers at INSM.