---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-009820"
form_type: "8-K"
ticker: "DYAI"
cik: "0001213809"
company_name: "DYADIC INTERNATIONAL INC"
filed_at: "2024-03-28T23:59:59+00:00"
generated_at: "2026-06-04T05:48:15.847199+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Dyadic reports FY2023 net loss of $6.8M; appoints new Chairman and COO

## Summary
- Net loss $6.8M ($0.24/share) vs $9.7M loss in 2022; revenue $2.9M flat YoY.
- Cash & investments $7.3M at Dec 31, 2023; raised $6M convertible note in March 2024.
- Positive Phase 1 topline data for DYAI-100 COVID booster: safe and immunogenic.
- Patrick Lucy appointed Chairman, replacing Michael Tarnok (retiring June 2025); Joseph Hazelton named COO.
- Entered multiple funded collaborations including top-ten pharma, Phibro/Abic, Rabian, Massachusetts General Hospital.

## SEC filing metadata
- accession: 0001437749-24-009820
- form_type: 8-K
- ticker: DYAI
- cik: 0001213809
- company_name: DYADIC INTERNATIONAL INC
- filed_at: 2024-03-28T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1213809/000143774924009820/0001437749-24-009820-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1213809/000143774924009820/dyai20231121_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-009820
- JSON: https://secwatch.observer/filing/0001437749-24-009820.json
- Plain text: https://secwatch.observer/filing/0001437749-24-009820.txt

## Key facts
- Executive change
  Barry C. Buckland retired as Director at DYADIC INTERNATIONAL INC.
  - Action: retired
  - Role: Director
  source text: Dr. Barry C. Buckland notified the Board of his decision to retire as a director of the Board, effective at the Company’s annual meeting to be held in June 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1213809/000143774924009820/0001437749-24-009820-index.htm
- Executive change
  Joseph Hazelton was appointed as Chief Operating Officer at DYADIC INTERNATIONAL INC.
  - Action: appointed
  - Role: Chief Operating Officer
  source text: the Board appointed Joseph Hazelton, its current Chief Business Officer, to the position of Chief Operating Officer, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1213809/000143774924009820/0001437749-24-009820-index.htm
- Executive change
  Patrick Lucy was appointed as Chairman of the Board at DYADIC INTERNATIONAL INC.
  - Action: appointed
  - Role: Chairman of the Board
  source text: appointed current member of the Board Patrick Lucy as its Chairman
  evidence_url: https://www.sec.gov/Archives/edgar/data/1213809/000143774924009820/0001437749-24-009820-index.htm
- Executive change
  Michael Tarnok retired as Director at DYADIC INTERNATIONAL INC.
  - Action: retired
  - Role: Director
  source text: Mr. Tarnok notified the Board of his decision to retire as a director of the Board, effective at the Company’s annual meeting to be held in June 2025.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1213809/000143774924009820/0001437749-24-009820-index.htm

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