Ken Griffin acquired 649 Thousand BlackRock Institutional Trust Company N.A. - iShares 1-3 Year Treasury Bond ETF shares worth $52.7 Million. That's 0.05% of their equity portfolio (435th largest holding). The investor owns 2042.50% of the outstanding BlackRock Institutional Trust Company N.A. - iShares 1-3 Year Treasury Bond ETF stock. The first BlackRock Institutional Trust Company N.A. - iShares 1-3 Year Treasury Bond ETF trade was made in Q1 2014. Since then Ken Griffin bought shares 43 more times and sold shares on 38 occasions. The investor's estimated purchase price is $55.2 Million, resulting in a loss of 4.6%.