Ensemble Capital started to build up the position in BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF in Q4 2016. Since then they sold 17.4 Thousand shares. The investor sold all their shares in Q1 2017 and doesn't own any shares in BlackRock Institutional Trust Company N.A. - iShares Core S&P 500 ETF anymore.