CHCO — Insider Trading Activity

CHCO is not showing a cluster buy or a step-change versus its own baseline, so what the window amounts to is 4 insiders acting separately, with the largest of them accounting for 35% of the dollars. Who is buying. The most credible buyer in this window is a Director (< $100K), growing their stake by 16%. That insider’s track record: past buys beat the S&P 500 1 of 2 times (avg −3% vs S&P over 6 mo). Overall credibility score: 14/100 (Low).

By the numbers. 4 insiders filed 4 open-market purchases at CHCO over the window, 444 shares in all at an average of $134.55 a share, most recently on July 21, 2026. On the other side, 2 insiders filed 2 sales covering 4,885 shares at an average of $144.87, the latest on August 26, 2026. That puts the average sale 8% above the average purchase — worth checking against where the stock trades today.

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.