---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-010080"
form_type: "8-K"
ticker: "BBLG"
cik: "0001419554"
company_name: "Bone Biologics Corp"
filed_at: "2026-03-13T23:59:59+00:00"
generated_at: "2026-05-15T12:28:15.990189+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Bone Biologics files prospectus supplement for ATM offering of up to $1.064M in common stock

## Summary
- Filing covers up to $1,064,000 shares of common stock sold at market through H.C. Wainwright as sales agent.
- Company previously sold $1.7M under prior shelf; new supplement uses Form S-3 declared effective Sept 2025.
- Proceeds from ATM offering will be used for general corporate purposes (not specified further).
- Legal opinion of Harter Secrest & Emery LLP on share legality filed as Exhibit 5.1.

## SEC filing metadata
- accession: 0001493152-26-010080
- form_type: 8-K
- ticker: BBLG
- cik: 0001419554
- company_name: Bone Biologics Corp
- filed_at: 2026-03-13T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1419554/000149315226010080/0001493152-26-010080-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1419554/000149315226010080/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-010080
- JSON: https://secwatch.observer/filing/0001493152-26-010080.json
- Plain text: https://secwatch.observer/filing/0001493152-26-010080.txt

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