Cardio Diagnostics Holdings, Inc. (CDIO) ownership: Top institutional holder: JANE STREET GROUP, LLC ($158502.00). Insider activity: Net Seller (0 buys, 4 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| JANE STREET GROUP, LLC | 81283.00 | $158502.00 | 2026-03-31 |
| HRT FINANCIAL LP | 62482.00 | $121000.00 | 2026-03-31 |
| BlackRock, Inc. | 34708.00 | $67681.00 | 2026-03-31 |
| VANGUARD GROUP INC | 24124.00 | $65376.00 | 2025-12-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 32177.00 | $62744.00 | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 20155.00 | $39302.00 | 2026-03-31 |
| RENAISSANCE TECHNOLOGIES LLC | 15348.00 | $29929.00 | 2026-03-31 |
| CITADEL ADVISORS LLC | 10858.00 | $29425.00 | 2025-12-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-03-31 | |
| Sell | null | 2026-03-31 | |
| Sell | null | 2026-03-31 | |
| Sell | null | 2026-03-31 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.