---
schema_version: "secwatch.filing_event.v1"
accession: "0001171843-26-001384"
form_type: "8-K"
ticker: "HBIO"
cik: "0001123494"
company_name: "HARVARD BIOSCIENCE INC"
filed_at: "2026-03-06T23:59:59+00:00"
generated_at: "2026-05-15T18:32:12.532948+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Harvard Bioscience shareholders approve 1-for-10 reverse stock split to regain Nasdaq compliance

## Summary
- Stockholders approved reverse stock split at March 6, 2026 special meeting; 27.0M votes for, 678K against.
- Board set final ratio at 1-for-10; Charter amendment filed with Delaware Secretary of State.
- Effective time 4:30 p.m. ET on March 13, 2026; split-adjusted trading begins March 16, 2026 under same symbol HBIO.
- Outstanding shares reduced from ~44.7M to ~4.47M; authorized shares unchanged at 80M.
- No fractional shares issued; stockholders entitled to cash payment in lieu based on closing price on March 13.

## SEC filing metadata
- accession: 0001171843-26-001384
- form_type: 8-K
- ticker: HBIO
- cik: 0001123494
- company_name: HARVARD BIOSCIENCE INC
- filed_at: 2026-03-06T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.07, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1123494/000117184326001384/0001171843-26-001384-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1123494/000117184326001384/f8k_030526.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001171843-26-001384
- JSON: https://secwatch.observer/filing/0001171843-26-001384.json
- Plain text: https://secwatch.observer/filing/0001171843-26-001384.txt

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