CMPX — Insider Trading Activity
One insider at CMPX put personal money into the stock on the open market this window, led by a CAO, with nobody selling.
What this means for CMPX
CMPX is not showing a cluster buy or a step-change versus its own baseline, so what the window amounts to is a single insider acting alone. Who is buying. The most credible buyer in this window is a CAO (< $100K), growing their stake by 5%. That insider’s track record: past buys beat the S&P 500 1 of 1 time (avg +100% vs S&P over 6 mo). Overall credibility score: 11/100 (Low).
By the numbers. One insider filed 2 open-market purchases at CMPX over the window, 22,500 shares in all at an average of $0.94 a share, most recently on October 1, 2026. No insider sold CMPX stock on the open market in that period.
How we read these filings — which transaction codes count, how the cluster and credibility thresholds are set, and what the signals have and haven’t predicted — is written up in the insider trading methodology.
CMPX insider filings, one by one
All 2 Form 4 filings from the last 90 days, by insider, with share count, dollar amount and date.
Other tickers with the same signal
Companies of a comparable size whose Form 4 filings tripped the same insider buying flag as CMPX in this window.
- FSK insider trading — 2 buyers, credibility 10/100
- DTIL insider trading — 2 buyers, credibility 9/100
- GAIN insider trading — 1 buyer, credibility 15/100
- FISI insider trading — 1 buyer, credibility 7/100
- FEAM insider trading — 1 buyer, credibility 14/100