Cardio Diagnostics-CW26CDIOWPreferred / convertible
13F holders, Q4 2025 (December 31)6holders −4
0new positions
3sold out
1famous investor
$0.35avg. 13F price*
At the end of Q4 2025, 6 institutions reported holding Cardio Diagnostics-CW26 (CDIOW) in their 13F filings, down 4 from Q3 2025. 0 opened new positions and 3 sold out. The largest holders were Boothbay Fund Management, LLC ($164K), Saba Capital Management, L.P. ($5K) and Clear Street Group Inc. ($2K). One famous investor held it David E. Shaw ( of D. E. Shaw & Co.'s portfolio).
- Company
- Cardio Diagnostics-CW26
- CUSIP
- 14159C111
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 3 | $1K |
All 13F filers, Q3 2025 → Q4 2025: 3,771 shares bought and 64,072 shares sold, net −60,301 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 6 holders
| Boothbay Fund Management, LLC | — | No change | 60,540 | $164K |
| Saba Capital Management, L.P. | — | No change | 199,839 | $5K |
| Clear Street Group Inc. | — | Reduce -0.2% | 82,442 | $2K |
| Context Capital Management, LLC | — | No change | 81,500 | $2K |
| D. E. Shaw & Co. | — | No change | 74,822 | $2K |
| UBS Group AG | — | Add +2497.3% | 3,922 | $102 |
"% of holder's portfolio" is CDIOW's weight in each manager's 13F, not the share of Cardio Diagnostics-CW26 the manager owns.