The insider Sell/Buy ratio is calculated by dividing the total insider sales in a given week by total insider purchases that week. The adjusted ratio for last week dropped to 8.83. In other words, insiders sold about 9 times as much stock as they purchased. The Sell/Buy ratio this week compares favorably with the prior week, when the ratio stood at 26.96. By removing transactions by companies and funds and trying as best as possible only to retain information about insiders and 10% owners who are not funds or companies, we are calculating an adjusted ratio.