QUANTUM SI INC — institutional ownership

4 funds reported holding QUANTUM SI INC in their latest 13F filings, worth $1.03M in total (CUSIP 74765K905).

Largest holders

1. GROUP ONE TRADING LLC — $546K
2. SIMPLEX TRADING, LLC — $303K
3. IMC-Chicago, LLC — $179K
4. AlphaCore Capital LLC — $4.06K