---
schema_version: "secwatch.filing_event.v1"
accession: "0001558370-25-001950"
form_type: "8-K"
ticker: null
cik: "0001733294"
company_name: "Generation Bio Co."
filed_at: "2025-02-28T23:59:59+00:00"
generated_at: "2026-05-25T23:43:04.958227+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Generation Bio receives Nasdaq bid-price deficiency notice; must regain compliance by Aug 25, 2025

## Summary
- Closing bid price below $1.00 for 30 consecutive business days triggered Nasdaq notice.
- Company has 180 days, until August 25, 2025, to regain compliance.
- To comply, closing bid must be at least $1.00 for 10 consecutive business days.
- If not compliant by deadline, may transfer to Nasdaq Capital Market for 180-day extension.
- Possible options include reverse stock split; delisting risk persists.

## SEC filing metadata
- accession: 0001558370-25-001950
- form_type: 8-K
- cik: 0001733294
- company_name: Generation Bio Co.
- filed_at: 2025-02-28T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 3.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1733294/000155837025001950/0001558370-25-001950-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1733294/000155837025001950/gbio-20250224x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001558370-25-001950
- JSON: https://secwatch.observer/filing/0001558370-25-001950.json
- Plain text: https://secwatch.observer/filing/0001558370-25-001950.txt

## Key facts
- Listing & Compliance Notices
  Generation Bio Co. received a nasdaq deficiency notice notice regarding minimum bid price (rules 5450(a)(1)).
  - Exchange: nasdaq
  - Notice: deficiency notice
  - Deficiency: minimum bid price
  - Rules: 5450(a)(1)
  source text: February 24, 2025, Generation Bio Co. (the “Company”) received written notification (the “Notice”) from the Listing Qualifications Department (the “Staff”) of the Nasdaq Stock Market (“Nasdaq”) that, because the closing bid price for the Company’s common stock has fallen below $1.00 per share for 30 consecutive business days, the Company no longer complies with the minimum bid price requirement for continued listing on the Nasdaq Global Select Market, pursuant to Nasdaq Listing Rule 5450(a)(1) (the “Bid Price Requirement”). The Notice has no immediate effect on the listing of the Company’s com
  evidence_url: https://www.sec.gov/Archives/edgar/data/1733294/000155837025001950/0001558370-25-001950-index.htm

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