---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-25-001416"
form_type: "8-K"
ticker: "HBIO"
cik: "0001123494"
company_name: "HARVARD BIOSCIENCE INC"
filed_at: "2025-03-12T23:59:59+00:00"
generated_at: "2026-05-24T22:04:14.076512+00:00"
event_type: "debt"
sentiment: "negative"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Harvard Bioscience enters debt waiver and amendment; substantial doubt about going concern

## Summary
- Fifth Amendment waives default on net leverage ratio covenant as of Dec 31, 2024; covenant testing suspended through March 31, 2025 if milestones met.
- Revolving credit commitment capped at outstanding amount; interest rate increased to SOFR + 400 bps; monthly amortization payments required.
- Company must achieve refinancing milestones (e.g., term sheet by May 23, 2025) and close refinancing by June 30, 2025.
- Unless refinanced by June 30, 2025, Company states it will be unable to pay debt and fund operations; substantial doubt about going concern.

## SEC filing metadata
- accession: 0001171843-25-001416
- form_type: 8-K
- ticker: HBIO
- cik: 0001123494
- company_name: HARVARD BIOSCIENCE INC
- filed_at: 2025-03-12T23:59:59+00:00
- event_type: debt
- sentiment: negative
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1123494/000117184325001416/0001171843-25-001416-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1123494/000117184325001416/f8k_031125.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-25-001416
- JSON: https://secwatch.observer/filing/0001171843-25-001416.json
- Plain text: https://secwatch.observer/filing/0001171843-25-001416.txt

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