Ken Griffin acquired 19.2 Thousand BlackRock Institutional Trust Company N.A. - iShares MSCI USA Size Factor ETF shares worth $2.61 Million. That's 0.00% of their equity portfolio (2023rd largest holding). The investor owns 100.55% of the outstanding BlackRock Institutional Trust Company N.A. - iShares MSCI USA Size Factor ETF stock. The first BlackRock Institutional Trust Company N.A. - iShares MSCI USA Size Factor ETF trade was made in Q2 2015. Since then Ken Griffin bought shares nineteen more times and sold shares on nineteen occasions. The stake costed the investor $2.26 Million, netting the investor a gain of 16% so far.