Cardio Diagnostics
CDIO
16 hedge funds and large institutions have $305K invested in Cardio Diagnostics in 2025 Q2 according to their latest regulatory filings, with 4 funds opening new positions, 4 increasing their positions, 6 reducing their positions, and 11 closing their positions.
4.72% more ownership
Funds ownership: 0.16% → 4.88% (+4.7%)
30% less funds holding
Funds holding: 23 → 16 (-7)
33% less repeat investments, than reductions
Existing positions increased: 4 | Existing positions reduced: 6
64% less capital invested
Capital invested by funds: $836K → $305K (-$531K)
64% less first-time investments, than exits
New positions opened: 4 | Existing positions closed: 11
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$97.7K |
| 2 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
+$56.1K |
| 3 |
Vanguard Group
Malvern,
Pennsylvania
|
+$1.98K |
| 4 |
Geode Capital Management
Boston,
Massachusetts
|
+$1.48K |
| 5 |
SS
SBI Securities
Tokyo,
Japan
|
+$67 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$36.4K |
| 2 |
Jane Street
New York
|
-$26.7K |
| 3 |
State Street
Boston,
Massachusetts
|
-$20.7K |
| 4 |
XT
XTX Topco
George Town,
Cayman Islands
|
-$18.9K |
| 5 |
Mariner
Overland Park,
Kansas
|
-$16.5K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
26
JP Morgan Chase
New York
| – | -$495 | -50 | Closed |
|
CDIO Hedge Fund Activity: Q2 2025 in Review
16 of the 7,598 institutional investors tracked by Wall St. Rank reported a position in Cardio Diagnostics (CDIO) for Q2 2025, worth a combined $305K — down 64% from $836K a quarter earlier.
Sellers outnumbered buyers: 11 funds closed out of CDIO and 4 opened new positions — a net loss of 7 holders — while 6 trimmed existing stakes and 4 added.
The largest buyer was Susquehanna International Group, opening a new position worth an estimated $97.7K. The largest seller was UBS Group, cutting an estimated $36.4K.
- 16 institutional investors held Cardio Diagnostics (CDIO) as of Q2 2025, down from 23 in Q1 2025.
- Funds reported $305K of Cardio Diagnostics stock for Q2 2025, down 64% quarter-over-quarter.
- 4 funds opened new Cardio Diagnostics positions in Q2 2025 and 11 closed out, a net change of -7 holders.
- The largest Cardio Diagnostics buyer in Q2 2025 was Susquehanna International Group, an estimated $97.7K added.
- The largest Cardio Diagnostics seller in Q2 2025 was UBS Group, an estimated $36.4K sold.
Based on aggregated 13F filings for Q2 2025.