Ken Griffin acquired 758 Thousand Rio Tinto plc shares worth $44.9 Million. That's 0.05% of their equity portfolio (520th largest holding). The first Rio Tinto plc trade was made in Q2 2013. Since then Ken Griffin bought shares 54 more times and sold shares on 57 occasions. The investor's estimated purchase price is $49.3 Million, resulting in a loss of 9.1%.