---
schema_version: "secwatch.filing_event.v1"
accession: "0001079973-23-001267"
form_type: "8-K/A"
ticker: "CDIO"
cik: "0001870144"
company_name: "Cardio Diagnostics Holdings, Inc."
filed_at: "2023-09-14T23:59:59+00:00"
generated_at: "2026-06-10T17:56:54.712204+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Cardio Diagnostics extends Yorkville second closing to Dec 2023; lowers floor price to $0.20

## Summary
- Second closing deadline extended to December 29, 2023 from September 15, 2023, subject to conditions.
- Floor price for convertible debentures reduced from $0.55 to $0.20 per share, effective retroactively.
- Share issuance cap set at 20,363,637 shares; stockholder approval or legal opinion required to exceed.
- Nasdaq minimum bid price notice no longer constitutes a condition failure unless it immediately affects listing.

## SEC filing metadata
- accession: 0001079973-23-001267
- form_type: 8-K/A
- ticker: CDIO
- cik: 0001870144
- company_name: Cardio Diagnostics Holdings, Inc.
- filed_at: 2023-09-14T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1870144/000107997323001267/0001079973-23-001267-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1870144/000107997323001267/cdio_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001079973-23-001267
- JSON: https://secwatch.observer/filing/0001079973-23-001267.json
- Plain text: https://secwatch.observer/filing/0001079973-23-001267.txt

## Key facts
- Material Agreements
  Cardio Diagnostics Holdings, Inc. amended SPA Amendment No. 2 with YA II PN, Ltd. ("Yorkville") (effective 2023-09-13).
  - Action: amendment
  - Agreement: equity purchase
  - Counterparty: YA II PN, Ltd. ("Yorkville")
  - Effective: 2023-09-13
  source text: By letter agreement dated September 13, 2023 ("SPA Amendment No. 2"), the Company and Yorkville mutually agreed that the date of the Second Closing will be December 29, 2023 (or such other date that is mutually agreed upon by the Company and Yorkville)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1870144/000107997323001267/0001079973-23-001267-index.htm
- Material Agreements
  Cardio Diagnostics Holdings, Inc. entered into Securities Purchase Agreement with YA II PN, Ltd. ("Yorkville") valued at up to $11.2 million (effective 2023-03-08).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: YA II PN, Ltd. ("Yorkville")
  - Value: up to $11.2 million
  - Effective: 2023-03-08
  source text: on March 8, 2023, the Company entered into a securities purchase agreement (the "Securities Purchase Agreement") with YA II PN, Ltd. ("Yorkville"), a fund managed by Yorkville Advisors Global, LP, headquartered in Mountainside, New Jersey.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1870144/000107997323001267/0001079973-23-001267-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.