According to the latest 13F filings, nearly 700 institutional owners and shareholders collectively hold 160.2 million shares of BlackRock IBIT, which has assets under management of $42 billion. Millennium Management remains the primary holder of IBIT, with a position of 23.5 million shares valued at $848 million. Investors like Capula have also increased their holdings in IBIT. However, some investors have reduced or exited their positions, such as Point72 and Jane Street, which are under Steve Cohen. Morgan Stanley has reduced its holdings, while Goldman Sachs has increased its share of IBIT, solidifying its position as the second-largest holder.