---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-026352"
form_type: "8-K"
ticker: null
cik: "0001383701"
company_name: "Histogen Inc."
filed_at: "2023-06-05T23:59:59+00:00"
generated_at: "2026-06-14T07:14:09.475296+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Histogen receives Nasdaq deficiency notice for minimum bid price non-compliance

## Summary
- Nasdaq letter on June 5, 2023 citing bid price below $1.00 for 30 consecutive business days.
- Compliance period of 180 days until December 4, 2023 to regain $1.00 minimum closing bid for 10 days.
- If not cured, may request additional 180 days if meets all other Nasdaq listing standards.
- Stock continues trading on Nasdaq Capital Market under symbol HSTO during cure period.
- No assurance of regaining compliance; delisting risk remains.

## SEC filing metadata
- accession: 0000950170-23-026352
- form_type: 8-K
- cik: 0001383701
- company_name: Histogen Inc.
- filed_at: 2023-06-05T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 3.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1383701/000095017023026352/0000950170-23-026352-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1383701/000095017023026352/hsto-20230605.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-026352
- JSON: https://secwatch.observer/filing/0000950170-23-026352.json
- Plain text: https://secwatch.observer/filing/0000950170-23-026352.txt

## Key facts
- Listing & Compliance Notices
  Histogen Inc. received a nasdaq deficiency notice notice regarding minimum bid price (rules 5550(a)(2)).
  - Exchange: nasdaq
  - Notice: deficiency notice
  - Deficiency: minimum bid price
  - Rules: 5550(a)(2)
  source text: June 5, 2023, Histogen Inc. (the “Company”) received a letter from the Listing Qualifications Department of the Nasdaq Stock Market (“Nasdaq”) indicating that, based upon the closing bid price of the Company’s common stock for the 30 consecutive business day period between April 21, 2023, through June 2, 2023, the Company did not meet the minimum bid price of $1.00 per share required for continued listing on The Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2). The letter also indicated that the Company will be provided with a compliance period of 180 calendar days, or until De
  evidence_url: https://www.sec.gov/Archives/edgar/data/1383701/000095017023026352/0000950170-23-026352-index.htm

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