Al Gore's position in Amazon.com is currently worth $406M. That's 2.50% of their equity portfolio (18th largest holding). The first Amazon.com trade was made in Q2 2014. Since then Al Gore bought shares fifteen more times and sold shares on 22 occasions. The stake costed the investor $252M, netting the investor a gain of 61% so far.
Politicians are more known for their trading than running hedge funds.