---
schema_version: "secwatch.filing_event.v1"
accession: "0001698530-23-000058"
form_type: "8-K"
ticker: "XCUR"
cik: "0001698530"
company_name: "EXICURE, INC."
filed_at: "2023-05-18T23:59:59+00:00"
generated_at: "2026-06-14T21:20:38.465498+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Exicure invests $1M in convertible bonds of Cyworld Z, maturing 2026 with 4.5% yield

## Summary
- Exicure purchased $1M face value convertible bonds of Cyworld Z, maturity May 15, 2026.
- Bonds have 0% coupon but 4.5% yield to maturity; put options available starting Aug 2024.
- Conversion price set at KRW 85,000 per share; conversion ratio is 100% of face value.
- Investment is a non-guaranteed private placement; proceeds used for Cyworld Z working capital.
- Exicure also has acceleration rights upon default and must be consulted on major corporate actions.

## SEC filing metadata
- accession: 0001698530-23-000058
- form_type: 8-K
- ticker: XCUR
- cik: 0001698530
- company_name: EXICURE, INC.
- filed_at: 2023-05-18T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1698530/000169853023000058/0001698530-23-000058-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1698530/000169853023000058/xcur-20230518.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001698530-23-000058
- JSON: https://secwatch.observer/filing/0001698530-23-000058.json
- Plain text: https://secwatch.observer/filing/0001698530-23-000058.txt

## Key facts
- Material Agreements
  EXICURE, INC. entered into Subscription Agreement with Cyworld Z Co., Ltd. valued at USD $1 million (effective 2023-05-16).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: Cyworld Z Co., Ltd.
  - Value: USD $1 million
  - Effective: 2023-05-16
  source text: On May 16, 2023, Exicure, Inc. (the “ Company ”) entered into a subscription agreement (the “ Subscription Agreement ”) with Cyworld Z Co., Ltd., (“ Cyworld Z ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1698530/000169853023000058/0001698530-23-000058-index.htm

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