Generation Bio to implement 1-for-10 reverse stock split to regain Nasdaq compliance

Generation Bio Co.

Effective 5:00 pm ET July 21, 2025; every 10 shares combine into 1.
Outstanding shares reduce from ~67.3M to ~6.7M.
No fractional shares issued; cash payments for fractional shares.
Split-adjusted trading begins July 22 under ticker GBIO, new CUSIP 37148K 209.
Purpose: meet Nasdaq minimum bid price requirement for continued listing.

Key facts

Extracted from this filing and checked against the source text.

Governance Changes SEC 8-K Item 5.03/5.05/5.06 confidence 0.9

Generation Bio Co.: Filed Certificate of Amendment to effect a 1-for-10 reverse stock split of common stock, effective July 21, 2025 (effective 2025-07-21).

Change: charter amendment
Effective: 2025-07-21

Exact text from the filing

On July 18, 2025, Generation Bio Co. (the “Company”) filed a Certificate of Amendment to the Company’s Amended and Restated Certificate of Incorporation (the “Certificate of Amendment”) with the Secretary of State of the State of Delaware, which will effect, as of 5:00 p.m. Eastern Time, on July 21, 2025 (the “Effective Time”), a 1-for-10 reverse stock split

View on SEC.gov

Browse all governance changes →

Source: SEC EDGAR

accession 0001558370-25-009290

view filing index on sec.gov

view primary document

Machine-readable: JSON · Markdown · Plain text

This headline and bullets were generated automatically by deepseek-v4-flash:cloud@v2 from the public filing. Read the source on SEC.gov before relying on any specific claim. Not investment advice. See methodology for how this pipeline works.