Cardio Diagnostics Holdings, Inc.
CDIOW- Exchange
- Nasdaq
- Industry
- In Vitro & In Vivo Diagnostic Substances
- SEC CIK
- 0001870144
No open-market purchases or sales by Cardio Diagnostics Holdings, Inc. insiders were filed in the last 90 days; 7 institutions reported holding it in 13F filings for Q2 2026, worth $139.7K in total; no superinvestor holds it.
Other share classesCDIO
13F holders, Q4 2022
Institutional positions in Cardio Diagnostics Holdings, Inc. as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 21
- +21 vs. Q3 2022
- Shares held
- 1.53M
- +1.53M vs. Q3 2022
- Total value
- $66.9K
- +$66.9K vs. Q3 2022
- New holders
- 21
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q3 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CDIOW on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 7 | $139.7K |
| Q1 2026 | 7 | $126.1K |
| Q4 2025 | 6 | $175.1K |
| Q3 2025 | 10 | $254.3K |
| Q2 2025 | 10 | $225.9K |
| Q1 2025 | 7 | $39.6K |
| Q4 2024 | 6 | $96.7K |
| Q3 2024 | 10 | $34.6K |
| Q2 2024 | 9 | $65.5K |
| Q1 2024 | 12 | $118.6K |
| Q4 2023 | 13 | $201.7K |
| Q3 2023 | 13 | $45.4K |
| Q2 2023 | 13 | $222.7K |
| Q1 2023 | 16 | $400.2K |
| Q4 2022 | 21 | $66.9K |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2022
Shares, value and share of portfolio for each institution holding Cardio Diagnostics Holdings, Inc.; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| EHP Funds Inc. | 364,492 | $18.0K | 0.00% | +364,492 | New |
| Saba Capital Management, L.P. | 235,597 | $11.7K | 0.00% | +235,597 | New |
| Atw Spac Management LLC | 100,000 | $4.95K | 0.00% | +100,000 | New |
| K2 Principal Fund, L.P. | 92,500 | $4.58K | 0.00% | +92,500 | New |
| Polar Asset Management Partners Inc. | 89,943 | $4.33K | 0.00% | +89,943 | New |
| D. E. Shaw & Co., Inc. | 74,822 | $3.70K | 0.00% | +74,822 | New |
| Yakira Capital Management, Inc. | 69,499 | $3.44K | 0.00% | +69,499 | New |
| Rivernorth Capital Management, LLC | 49,999 | $2.50K | 0.00% | +49,999 | New |
| CNH Partners LLC | 46,442 | $2.30K | 0.00% | +46,442 | New |
| Walleye Capital LLC | 42,915 | $2.12K | 0.00% | +42,915 | New |
| Shaolin Capital Management LLC | 47,000 | $2.00K | 0.00% | +47,000 | New |
| Wolverine Asset Management LLC | 29,959 | $1.48K | 0.00% | +29,959 | New |
| Gabelli Funds LLC | 26,290 | $1.30K | 0.00% | +26,290 | New |
| Walleye Trading LLC | 24,139 | $1.20K | 0.00% | +24,139 | New |
| Gabelli & Co Investment Advisers, Inc. | 22,410 | $1.11K | 0.00% | +22,410 | New |
| HRT Financial LP | 36,200 | $1.00K | 0.00% | +36,200 | New |
| Susquehanna International Group, LLP | 12,483 | $618 | 0.00% | +12,483 | New |
| Castle Creek Arbitrage, LLC | 11,710 | $564 | 0.00% | +11,710 | New |
| UBS Group AG | 52 | $3 | 0.00% | +52 | New |
| Radcliffe Capital Management, L.P. | 50,000 | – | – | +50,000 | New |
| Boothbay Fund Management, LLC | 100,000 | – | – | +100,000 | New |