Ken Griffin's position in BlackRock Institutional Trust Company N.A. - iShares Silver Trust is currently worth $1.96 Million. That's 0.00% of their equity portfolio (2662nd largest holding). The investor owns 1.68% of the outstanding BlackRock Institutional Trust Company N.A. - iShares Silver Trust stock. The first BlackRock Institutional Trust Company N.A. - iShares Silver Trust trade was made in Q1 2014. Since then Ken Griffin bought shares 47 more times and sold shares on 33 occasions. The investor's estimated purchase price is $2.12 Million, resulting in a loss of 7.7%.