Who owns QUANTUM SI INC?

Tip: Access positions for across all investors

Analyze quarterly positions in Quantum Si with up to 7 years of data, all consolidated into one spreadsheet

Download as csvDownload consolidated filings csv Download as ExcelDownload consolidated filings xlsx

Top investors of Quantum Si stock

Who bought or sold QUANTUM SI INC this quarter?

Fund or Company Name Shares Held Valued At Change in Shares As Of Actions
Group One Trading 617k $546k 153% Jun 2026
 View chart
Simplex Trading 343k $303k 21% Jun 2026
 View chart
IMC-Chicago 202k $179k -1% Jun 2026
 View chart
AlphaCore Capital 125.00 $4.1k 100% Jun 2026
 View chart