---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-011884"
form_type: "8-K"
ticker: "HRGN"
cik: "0001563665"
company_name: "Harvard Apparatus Regenerative Technology, Inc."
filed_at: "2025-04-14T23:59:59+00:00"
generated_at: "2026-05-23T15:26:19.648023+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Harvard Apparatus Regenerative Tech replaces auditor: Marcum resigns, CBIZ CPAs P.C appointed April 11, 2025

## Summary
- Marcum LLP resigned as independent auditor effective April 11, 2025; Audit Committee approved CBIZ CPAs P.C. as successor the same day.
- No disagreements with Marcum on accounting principles, disclosure, or audit scope during fiscal 2023, 2024, or through April 14, 2025.
- Marcum's reports for fiscal 2023 and 2024 were unqualified but included a going-concern explanatory paragraph.
- Marcum's letter concurring with disclosure is filed as Exhibit 16.1.

## SEC filing metadata
- accession: 0001437749-25-011884
- form_type: 8-K
- ticker: HRGN
- cik: 0001563665
- company_name: Harvard Apparatus Regenerative Technology, Inc.
- filed_at: 2025-04-14T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1563665/000143774925011884/0001437749-25-011884-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1563665/000143774925011884/hrgn20250407_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-011884
- JSON: https://secwatch.observer/filing/0001437749-25-011884.json
- Plain text: https://secwatch.observer/filing/0001437749-25-011884.txt

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