---
schema_version: "secwatch.filing_event.v1"
accession: "0001641172-25-013942"
form_type: "8-K"
ticker: "BMRA"
cik: "0000073290"
company_name: "BIOMERICA INC"
filed_at: "2025-06-06T23:59:59+00:00"
generated_at: "2026-05-19T18:57:49.797484+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Biomerica appoints Eric Chin to board; Cathy Coste resigns effective June 4

## Summary
- Cathy Coste resigned as director effective June 4, 2025; no disagreement with the company.
- Eric Chin appointed as independent director and Audit Committee Chair, effective same date.
- Chin is CFO of Akido Labs, helped raise $60M; will receive $41K annual cash and 10,000 restricted shares.
- Chin also joins Nominating/Governance and Compensation Committees.
- No family relationships or transactions requiring disclosure; board determined independent per Nasdaq rules.

## SEC filing metadata
- accession: 0001641172-25-013942
- form_type: 8-K
- ticker: BMRA
- cik: 0000073290
- company_name: BIOMERICA INC
- filed_at: 2025-06-06T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/73290/000164117225013942/0001641172-25-013942-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/73290/000164117225013942/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001641172-25-013942
- JSON: https://secwatch.observer/filing/0001641172-25-013942.json
- Plain text: https://secwatch.observer/filing/0001641172-25-013942.txt

## Key facts
- Executive change
  Eric Chin was appointed as Director and Audit Committee Chair at BIOMERICA INC.
  - Action: appointed
  - Role: Director and Audit Committee Chair
  source text: On the same date, the Board appointed Mr. Eric Chin to serve as an independent member of the Board, effective immediately
  evidence_url: https://www.sec.gov/Archives/edgar/data/73290/000164117225013942/0001641172-25-013942-index.htm
- Executive change
  Cathy Coste resigned as Director at BIOMERICA INC.
  - Action: resigned
  - Role: Director
  source text: Effective June 4, 2025, Ms. Cathy Coste stepped down as a member of the Board of Directors
  evidence_url: https://www.sec.gov/Archives/edgar/data/73290/000164117225013942/0001641172-25-013942-index.htm

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