---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-000717"
form_type: "8-K"
ticker: "BLGO"
cik: "0000880242"
company_name: "BIOLARGO, INC."
filed_at: "2024-01-05T23:59:59+00:00"
generated_at: "2026-06-07T03:41:55.877411+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# BioLargo dismisses Haskell & White, engages Hacker Johnson as auditor for FY 2023

## Summary
- Audit committee approved Hacker Johnson & Smith PA as independent auditor for fiscal 2023, effective immediately.
- Haskell & White LLP was dismissed as auditor on January 2, 2024.
- No disagreements or reportable events occurred during fiscal years 2021, 2022, or subsequent interim period.
- Company provided disclosure to Haskell & White, which agreed via letter filed as Exhibit 16.1.

## SEC filing metadata
- accession: 0001437749-24-000717
- form_type: 8-K
- ticker: BLGO
- cik: 0000880242
- company_name: BIOLARGO, INC.
- filed_at: 2024-01-05T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/880242/000143774924000717/0001437749-24-000717-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/880242/000143774924000717/blgo20240104_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-000717
- JSON: https://secwatch.observer/filing/0001437749-24-000717.json
- Plain text: https://secwatch.observer/filing/0001437749-24-000717.txt

## Key facts
- Auditor Changes
  BIOLARGO, INC. engaged Hacker Johnson & Smith PA as its auditor.
  - Action: engagement
  - Auditor: Hacker Johnson & Smith PA
  source text: approved the engagement of Hacker Johnson & Smith PA ("Hacker Johnson") as the Company's independent registered public accounting firm
  evidence_url: https://www.sec.gov/Archives/edgar/data/880242/000143774924000717/0001437749-24-000717-index.htm
- Auditor Changes
  BIOLARGO, INC. dismissed Haskell & White LLP as its auditor.
  - Action: dismissal
  - Auditor: Haskell & White LLP
  - Successor: Hacker Johnson & Smith PA
  source text: dismissed Haskell & White LLP ("Haskell & White"), as the Company's independent registered public accounting firm.
  evidence_url: https://www.sec.gov/Archives/edgar/data/880242/000143774924000717/0001437749-24-000717-index.htm

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