The first BlackRock Institutional Trust Company N.A. - iShares 1-3 Year Treasury Bond ETF trade was made in Q4 2017. Since then Jim Simons bought shares ten more times and sold shares on seven occasions. The investor sold all their shares in Q1 2023 and doesn't own any shares in BlackRock Institutional Trust Company N.A. - iShares 1-3 Year Treasury Bond ETF anymore.