Sign In
Buy ACHFF
Arch Biopartners Stock Insider Power
Based on the 0 latest insides trades, we have calculated the insider power to be negative at 0. In total, the insiders bought 0 and sold 0 ACHFF shares in the last 0 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Historical Insider Trades
About Insider Power 
Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.
It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.
While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.
* October 6th, 2025 - Tested on 5562 stocks
