Cardio Diagnostics HoldingsCDIO
13F holders, Q2 2026 (June 30)At the end of Q2 2026, 17 institutions reported holding Cardio Diagnostics Holdings (CDIO) in their 13F filings, up 1 from Q1 2026. 4 opened new positions and 3 sold out. The largest holders were Renaissance Technologies ($108K), BlackRock, Inc. ($76K) and Geode Capital Management, LLC ($57K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Cardio Diagnostics Holdings
- CUSIP
- 14159C202
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $99K |
| Exits | 3 | $148K |
All 13F filers, Q1 2026 → Q2 2026: 79,117 shares bought and 162,448 shares sold, net −83,331 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 17 holders
| Renaissance Technologies | 0.00% | Add +220.6% | 49,200 | $108K |
| BlackRock, Inc. | 0.00% | No change | 34,708 | $76K |
| Geode Capital Management, LLC | 0.00% | Reduce -18.5% | 26,233 | $57K |
| Vanguard Capital Management LLC | 0.00% | No change | 20,155 | $44K |
| Citadel Advisors | 0.00% | New | 19,071 | $42K |
| XTX Topco Ltd | 0.00% | New | 16,093 | $35K |
| Jane Street Group, LLC | 0.00% | Reduce -85.3% | 11,933 | $26K |
| State Street Corp. | 0.00% | New | 10,099 | $22K |
| Vanguard Fiduciary Trust Co. | 0.00% | Reduce -28.9% | 2,824 | $6K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -17.5% | 1,809 | $4K |
| UBS Group AG | 0.00% | Reduce -93.4% | 656 | $1K |
| Wolverine Asset Management LLC | 0.00% | No change | 104 | $228 |
| Morgan Stanley | 0.00% | No change | 100 | $219 |
| Osaic Holdings, Inc. | 0.00% | No change | 16 | $35 |
| SHP Wealth Management | 0.00% | No change | 16 | $35 |
| SBI Securities Co., Ltd. | 0.00% | No change | 10 | $22 |
| Wells Fargo & Company | 0.00% | New | 2 | $4 |
"% of holder's portfolio" is CDIO's weight in each manager's 13F, not the share of Cardio Diagnostics Holdings the manager owns.