The first BlackRock Institutional Trust Company N.A. - iShares iBoxx USD Investment Grade Corporate Bond ETF trade was made in Q1 2018. Since then Jim Simons bought shares ten more times and sold shares on seven occasions. The investor sold all their shares in Q4 2023 and doesn't own any shares in BlackRock Institutional Trust Company N.A. - iShares iBoxx USD Investment Grade Corporate Bond ETF anymore.