Institutional Ownership Quantum Si Inc (QSIAW)
This table provides information about the institutional ownership of Quantum Si Inc (QSIAW). We have compiled data on the 7 institutions that hold shares in the stock, with a total of 497,413 shares, which have been reported (via 13F filing form) to have a value of $0.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Deerfield Management Company, L.P. (Series C)
New York, NY |
Nov 14, 2025 Q3 2025 |
333,333
shares
|
$0
0.0% of portfolio
|
Q2 2021
New holding
|
|
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
Nov 14, 2025 Q3 2025 |
145,733
shares
|
$0
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Jane Street Group, LLC
New York, NY |
Nov 13, 2025 Q3 2025 |
17,137
shares
|
$0
0.0% of portfolio
|
Q3 2025
Added 3.74%
|
|
|
Ubs Group Ag
|
Nov 13, 2025 Q3 2025 |
1,144
shares
|
$0
0.0% of portfolio
|
Q3 2025
New holding
|
|
|
Wr Wealth Planners, LLC
Columbia, MO |
Feb 05, 2025 Q4 2024 |
66
shares
|
$0
0.0% of portfolio
|
Q4 2024
New holding
|
|
|
Concourse Financial Group Securities, Inc.
Birmingham, AL |
Aug 12, 2025 Q2 2025 |
0
shares
|
$0
100.0% of portfolio
|
Q2 2025
New holding
|