The families of four co-founders of Infosys have sold about 65B rupees ($1B) of stock to capitalize on a gain in their price and to fund various philanthropic activities. Together, the group holds a combined 91.5M shares (nearly 8% of Infosys' (NYSE:INFY) outstanding shares), according to the company's annual report. Shares closed down 4.8% at 1,972 rupees in Mumbai.