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Quantum-Si Incorporated
QSI
QSI
135 hedge funds and large institutions have $74.3M invested in Quantum-Si Incorporated in 2025 Q4 according to their latest regulatory filings, with 32 funds opening new positions, 38 increasing their positions, 37 reducing their positions, and 19 closing their positions.
New
Increased
Maintained
Reduced
Closed
68% more first-time investments, than exits
New positions opened: 32 | Existing positions closed: 19
8% more funds holding
Funds holding: 125 → 135 (+10)
8% more call options, than puts
Call options by funds: $1.95M | Put options by funds: $1.81M
3% more repeat investments, than reductions
Existing positions increased: 38 | Existing positions reduced: 37
0.89% less ownership
Funds ownership: 35.4% → 34.52% (-0.89%)
19% less capital invested
Capital invested by funds: $91.5M → $74.3M (-$17.2M)
Holders
135
Holders Change
+10
Holders Change %
+8%
% of All Funds
1.64%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
32
Increased
38
Reduced
37
Closed
19
Calls
$1.95M
Puts
$1.81M
Net Calls
+$140K
Net Calls Change
-$1.34M
Top Buyers
| 1 |
Citadel Advisors
Miami,
Florida
|
+$3.69M |
| 2 |
BlackRock
New York
|
+$2.82M |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$1.54M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
+$1.45M |
| 5 |
Two Sigma Investments
New York
|
+$1.41M |
Top Sellers
| 1 |
Millennium Management
New York
|
-$4.03M |
| 2 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
-$981K |
| 3 |
Squarepoint
New York
|
-$865K |
| 4 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$859K |
| 5 |
NAMA
Nikko Asset Management Americas
New York
|
-$857K |