---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-155430"
form_type: "8-K"
ticker: null
cik: "0000811240"
company_name: "BIOLASE, INC"
filed_at: "2023-05-26T23:59:59+00:00"
generated_at: "2026-06-14T13:43:10.771944+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# BIOLASE raises $4.5M via underwritten offering of Series H preferred stock and warrants

## Summary
- Gross proceeds ~$4.5M from 175,000 units at $26/unit; each unit includes one share Series H preferred ($50 liquidation pref, 48% OID) and warrant to buy 0.5 preferred share.
- Series H preferred converts to common at $0.1398/share; carries 20% PIK dividend (one-time after one year); 2-year term with mandatory redemption at $50 stated value.
- Warrants exercisable at $13 per warrant (for 0.5 preferred share), immediately exercisable, 2-year term.
- Net proceeds for working capital and general corporate purposes; offering closed May 26, 2023.
- Lake Street Capital Markets and Maxim Group acted as joint bookrunners.

## SEC filing metadata
- accession: 0001193125-23-155430
- form_type: 8-K
- cik: 0000811240
- company_name: BIOLASE, INC
- filed_at: 2023-05-26T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 3.03, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/811240/000119312523155430/0001193125-23-155430-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/811240/000119312523155430/d469757d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-155430
- JSON: https://secwatch.observer/filing/0001193125-23-155430.json
- Plain text: https://secwatch.observer/filing/0001193125-23-155430.txt

## Key facts
- Governance Changes
  BIOLASE, INC: Filed Certificate of Designation for Series H Convertible Redeemable Preferred Stock (effective 2023-05-24).
  - Change: charter amendment
  - Effective: 2023-05-24
  source text: On May 24, 2023, the Company filed the Certificate of Designation with the Secretary of State of the State of Delaware to establish the powers, preferences and rights of the shares of the Series H Convertible Preferred Stock and the qualifications, limitations or restrictions thereof.
  evidence_url: https://www.sec.gov/Archives/edgar/data/811240/000119312523155430/0001193125-23-155430-index.htm
- Material Agreements
  BIOLASE, INC entered into Underwriting Agreement with Lake Street Capital Markets, LLC, as representative of the several underwriters named therein (effective 2023-05-24).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: Lake Street Capital Markets, LLC, as representative of the several underwriters named therein
  - Effective: 2023-05-24
  source text: On May 24, 2023, BIOLASE, Inc. (the "Company") entered into an underwriting agreement (the "Underwriting Agreement") with Lake Street Capital Markets, LLC, as representative of the several underwriters named therein (the "Underwriters"), pursuant to which the Company agreed to sell to the Underwriters, in a firm commitment underwritten public offering, 175,000 units
  evidence_url: https://www.sec.gov/Archives/edgar/data/811240/000119312523155430/0001193125-23-155430-index.htm

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