Ken Griffin acquired 900 BlackRock Institutional Trust Company N.A. - iShares S&P Mid-Cap 400 Growth ETF shares worth $78.2 Thousand. That's 0.00% of their equity portfolio (4426th largest holding). The investor owns 3.03% of the outstanding BlackRock Institutional Trust Company N.A. - iShares S&P Mid-Cap 400 Growth ETF stock. The first BlackRock Institutional Trust Company N.A. - iShares S&P Mid-Cap 400 Growth ETF trade was made in Q1 2014. Since then Ken Griffin bought shares 27 more times and sold shares on 22 occasions. The stake costed the investor $62.5 Thousand, netting the investor a gain of 25% so far.