---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-207530"
form_type: "8-K"
ticker: "FBLG"
cik: "0001958777"
company_name: "FibroBiologics, Inc."
filed_at: "2026-05-06T23:59:59+00:00"
generated_at: "2026-05-14T22:56:46.626480+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# FibroBiologics ups ATM offering to $7.5M; 71,830 shares sold to date

## Summary
- Increased maximum aggregate offering price under ATM facility to $7.5 million.
- 71,830 shares of common stock sold to date under Sales Agreement with H.C. Wainwright & Co.
- ATM offering uses existing S-3 shelf registration (effective Feb 10, 2025); prospectus supplement filed May 5, 2026.
- Legal opinion and consent of Sichenzia Ross Ference Carmel LLP filed as exhibits.

## SEC filing metadata
- accession: 0001193125-26-207530
- form_type: 8-K
- ticker: FBLG
- cik: 0001958777
- company_name: FibroBiologics, Inc.
- filed_at: 2026-05-06T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1958777/000119312526207530/0001193125-26-207530-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1958777/000119312526207530/fblg-20260505.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-207530
- JSON: https://secwatch.observer/filing/0001193125-26-207530.json
- Plain text: https://secwatch.observer/filing/0001193125-26-207530.txt

## Key facts
- Material Agreements
  FibroBiologics, Inc. entered into At The Market Offering Agreement with H.C. Wainwright & Co., LLC (effective 2026-05-01).
  - Action: entry
  - Agreement: atm program
  - Counterparty: H.C. Wainwright & Co., LLC
  - Effective: 2026-05-01
  source text: on May 1, 2026, FibroBiologics, Inc. (the “Company”) entered into that certain At The Market Offering Agreement (the “Sales Agreement”) with H.C. Wainwright & Co., LLC (the “Sales Agent”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1958777/000119312526207530/0001193125-26-207530-index.htm

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