Chris Davis started to build up the position in BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF in Q3 2008. Since then they sold 21.7 Thousand shares. The investor sold all their shares in Q2 2009 and doesn't own any shares in BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF anymore.