---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-142089"
form_type: "8-K"
ticker: "FBLG"
cik: "0001958777"
company_name: "FibroBiologics, Inc."
filed_at: "2026-04-03T23:59:59+00:00"
generated_at: "2026-05-15T07:41:49.047492+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# FibroBiologics implements 1-for-20 reverse stock split effective March 30, 2026

## Summary
- Reverse split ratio of 1:20; every 20 shares converted to 1 share.
- No fractional shares issued; any fractional interests rounded up to the nearest whole share.
- Par value unchanged at $0.00001; authorized shares unchanged.
- CUSIP changed to 31573L204; trading symbol remains 'FBLG'.

## SEC filing metadata
- accession: 0001193125-26-142089
- form_type: 8-K
- ticker: FBLG
- cik: 0001958777
- company_name: FibroBiologics, Inc.
- filed_at: 2026-04-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1958777/000119312526142089/0001193125-26-142089-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1958777/000119312526142089/fblg-20260330.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-142089
- JSON: https://secwatch.observer/filing/0001193125-26-142089.json
- Plain text: https://secwatch.observer/filing/0001193125-26-142089.txt

## Key facts
- Governance Changes
  FibroBiologics, Inc.: Implemented a one-for-twenty reverse stock split of common stock via amendment to the Amended and Restated Certificate of Incorporation (effective 2026-03-30).
  - Change: charter amendment
  - Effective: 2026-03-30
  source text: On March 25, 2026, FibroBiologics, Inc. (the “Company”) filed a Certificate of Amendment to the Company’s Amended and Restated Certificate of Incorporation, as amended, with the Secretary of State of the State of Delaware (the “Certificate of Amendment”), which became effective at 12:01 a.m. Eastern Time on March 30, 2026, and implemented a one-for-twenty (1:20) reverse stock split
  evidence_url: https://www.sec.gov/Archives/edgar/data/1958777/000119312526142089/0001193125-26-142089-index.htm

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