Ken Griffin's position in BlackRock Institutional Trust Company N.A. - iShares Trust iShares 1-5 Year Investment Grade Corporate Bond ETF is currently worth $1.47 Million. That's 0.00% of their equity portfolio (2472nd largest holding). The investor owns 57.02% of the outstanding BlackRock Institutional Trust Company N.A. - iShares Trust iShares 1-5 Year Investment Grade Corporate Bond ETF stock. The first BlackRock Institutional Trust Company N.A. - iShares Trust iShares 1-5 Year Investment Grade Corporate Bond ETF trade was made in Q4 2015. Since then Ken Griffin bought shares twelve more times and sold shares on ten occasions. The stake costed the investor $1.45 Million, netting the investor a gain of 1.2% so far.