Jim Simons started to build up the position in J.P. Morgan Exchange-Traded Fund Trust - JPMorgan U.S. Aggregate Bond ETF in Q4 2023. Since then they sold 4.6k shares. The investor sold all their shares in Q1 2024 and doesn't own any shares in J.P. Morgan Exchange-Traded Fund Trust - JPMorgan U.S. Aggregate Bond ETF anymore.