Cardio Diagnostics-CW26CDIOWPreferred / convertible
13F holders, Q1 2026 (March 31)7holders +1
1new positions
0sold out
1famous investor
$0.24avg. 13F price*
At the end of Q1 2026, 7 institutions reported holding Cardio Diagnostics-CW26 (CDIOW) in their 13F filings, up 1 from Q4 2025. 1 opened new positions and 0 sold out. The largest holders were Boothbay Fund Management, LLC ($118K), Saba Capital Management, L.P. ($3K) and Clear Street Group Inc. ($1K). 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 Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $1K |
| Exits | 0 | $0 |
All 13F filers, Q4 2025 → Q1 2026: 32,427 shares bought and 100 shares sold, net +32,327 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 7 holders
| Boothbay Fund Management, LLC | — | No change | 60,540 | $118K |
| Saba Capital Management, L.P. | — | No change | 199,839 | $3K |
| Clear Street Group Inc. | — | Reduce -0.1% | 82,342 | $1K |
| Context Capital Management, LLC | — | No change | 81,500 | $1K |
| D. E. Shaw & Co. | — | No change | 74,822 | $1K |
| Virtu Financial LLC | — | New | 30,788 | $1K |
| UBS Group AG | — | Add +41.8% | 5,561 | $89 |
"% of holder's portfolio" is CDIOW's weight in each manager's 13F, not the share of Cardio Diagnostics-CW26 the manager owns.