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Cardio Diagnostics Holdings, Inc.

CDIO
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; 17 institutions reported holding it in 13F filings for Q2 2026, worth $422.7K in total; no superinvestor holds it.

Other share classesCDIOW

Q4 2025 vs. Q3 2025

How the institutions holding Cardio Diagnostics Holdings, Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of CDIO: Q3 2025 compared with Q4 2025
MeasureQ3 2025Q4 2025Change
Holders1416+2
Shares115.1K129.5K+14.4K (+12.5%)
Value$462.2K$351.0K−$111.2K (−24.1%)

New holders (3)

Institutions that held Cardio Diagnostics Holdings, Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to CDIO in Q4 2025
InstitutionSharesValue% of portfolio
UBS Group AG952$2.58K0.00%
Citigroup Inc26$700.00%
SHP Wealth Management16$430.00%

Sold out (1)

Institutions that held Cardio Diagnostics Holdings, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of CDIO in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
CWM, LLC116$0