---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-327089"
form_type: "8-K"
ticker: "IOBTQ"
cik: "0001865494"
company_name: "IO Biotech, Inc."
filed_at: "2025-12-19T23:59:59+00:00"
generated_at: "2026-05-16T12:38:01.533366+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# IO Biotech receives Nasdaq bid price deficiency notice; has until June 16, 2026 to regain compliance

## Summary
- Nasdaq notified IO Biotech on Dec 17, 2025 that bid price < $1.00 for 30 consecutive days.
- Company has 180 calendar days, until June 16, 2026, to regain compliance.
- To comply, closing bid price must be >= $1.00 for at least 10 consecutive trading days.
- If not compliant by June 2026, may apply for a second 180-day period by transferring to Nasdaq Capital Market.
- No immediate effect on listing; stock continues trading on Nasdaq Global Select Market.

## SEC filing metadata
- accession: 0001193125-25-327089
- form_type: 8-K
- ticker: IOBTQ
- cik: 0001865494
- company_name: IO Biotech, Inc.
- filed_at: 2025-12-19T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.75
- confidence: high
- sec_items: 3.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1865494/000119312525327089/0001193125-25-327089-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1865494/000119312525327089/d71494d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-327089
- JSON: https://secwatch.observer/filing/0001193125-25-327089.json
- Plain text: https://secwatch.observer/filing/0001193125-25-327089.txt

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