---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-140044"
form_type: "8-K"
ticker: "FBLG"
cik: "0001958777"
company_name: "FibroBiologics, Inc."
filed_at: "2026-04-02T23:59:59+00:00"
generated_at: "2026-05-15T07:53:18.219543+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# FibroBiologics closes $3M public offering of common stock and warrants at $1.32/unit

## Summary
- Offering of 2,272,728 shares (or pre-funded warrants) plus warrants, combined price $1.32/unit; net proceeds ~$2.5M after fees.
- Warrants exercise price $1.32, exercisable only after stockholder approval; if fully cash-exercised, additional $3M proceeds possible.
- Pre-funded warrants exercise price $0.00001, no expiration; beneficial ownership cap 9.99%.
- Placement agent H.C. Wainwright received 7.0% cash fee, 1.0% management fee, and 159,091 placement agent warrants at $1.65.
- Lock-up: insiders 30 days; company restricted from further equity issuance for 30 days and no variable-rate transactions for one year.

## SEC filing metadata
- accession: 0001193125-26-140044
- form_type: 8-K
- ticker: FBLG
- cik: 0001958777
- company_name: FibroBiologics, Inc.
- filed_at: 2026-04-02T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1958777/000119312526140044/0001193125-26-140044-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1958777/000119312526140044/fblg-20260331.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-140044
- JSON: https://secwatch.observer/filing/0001193125-26-140044.json
- Plain text: https://secwatch.observer/filing/0001193125-26-140044.txt

## Key facts
- Material Agreements
  FibroBiologics, Inc. entered into Purchase Agreement with certain investors (effective 2026-03-31).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: certain investors
  - Effective: 2026-03-31
  source text: certain of the investors purchased their Shares and Pre-Funded Warrants, together with the accompanying Warrants, pursuant to a securities purchase agreement, dated March 31, 2026, by and among the Company and such investors (the “Purchase Agreement”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1958777/000119312526140044/0001193125-26-140044-index.htm

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