<p size="1" _root="[object Object]" __ownerid="undefined" __hash="undefined" __altered="false"><span style="line-height:107%">Alibaba's co-founder Jack Ma has reduced his stake in the Chinese e-commerce company over the past year from 6.2% to 4.8%, cashing out roughly $8.2 billion at its current share price. Similarly, e</span>xecutive vice-chairman and co-founder Joseph Tsai also cut his stake over the same period from 2.2% to 1.6%. As of July 10, the offloaded shares were valued at $3.3 billion. </p>