---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-018471"
form_type: "8-K"
ticker: "BBNX"
cik: "0001674632"
company_name: "Beta Bionics, Inc."
filed_at: "2025-01-31T23:59:59+00:00"
generated_at: "2026-05-27T04:44:13.445748+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Beta Bionics closes upsized IPO of 13.8M shares at $17.00, raises $229.1M

## Summary
- IPO of 13,800,000 shares at $17.00/share, including full exercise of underwriters' option for 1,800,000 additional shares.
- Gross proceeds to Beta Bionics from IPO total $212.1M; combined with concurrent private placement, aggregate proceeds $229.1M.
- Private placement: 1,000,000 shares sold to existing investor at IPO price of $17.00/share.
- Shares began trading on Nasdaq Global Market on January 30, 2025 under ticker BBNX.
- Lead bookrunners: BofA Securities, Piper Sandler, and Leerink Partners; Stifel bookrunner; Lake Street co-manager.

## SEC filing metadata
- accession: 0001193125-25-018471
- form_type: 8-K
- ticker: BBNX
- cik: 0001674632
- company_name: Beta Bionics, Inc.
- filed_at: 2025-01-31T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 3.02, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1674632/000119312525018471/0001193125-25-018471-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1674632/000119312525018471/d933339d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-018471
- JSON: https://secwatch.observer/filing/0001193125-25-018471.json
- Plain text: https://secwatch.observer/filing/0001193125-25-018471.txt

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