---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-009792"
form_type: "8-K"
ticker: "BJDX"
cik: "0001704287"
company_name: "Bluejay Diagnostics, Inc."
filed_at: "2026-01-30T23:59:59+00:00"
generated_at: "2026-05-16T05:59:51.536901+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Bluejay Diagnostics implements 1-for-4 reverse stock split effective Jan 29, 2026

## Summary
- Reverse stock split at 1-for-4 ratio; outstanding shares reduced from ~2,834,133 to ~708,533.
- Shares from prefunded warrants reduced from 1,055,000 to 263,750; no fractional shares issued.
- Common stock continues trading under symbol 'BJDX' on Nasdaq; new CUSIP 095633608.
- Board approved final ratio on Jan 27, 2026; Certificate of Amendment filed with Delaware.

## SEC filing metadata
- accession: 0001213900-26-009792
- form_type: 8-K
- ticker: BJDX
- cik: 0001704287
- company_name: Bluejay Diagnostics, Inc.
- filed_at: 2026-01-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 5.03, 5.07, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1704287/000121390026009792/0001213900-26-009792-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1704287/000121390026009792/ea0274800-8k_bluejay.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-009792
- JSON: https://secwatch.observer/filing/0001213900-26-009792.json
- Plain text: https://secwatch.observer/filing/0001213900-26-009792.txt

## Key facts
- Governance Changes
  Bluejay Diagnostics, Inc.: Amended charter to implement a 1-for-4 reverse stock split, effective January 29, 2026 (effective 2026-01-29).
  - Change: charter amendment
  - Effective: 2026-01-29
  source text: On January 27, 2026, the Company filed a certificate of amendment to the Charter (the “Certificate of Amendment”) with the Secretary of State of the State of Delaware, to implement a 1-for-4 reverse split of the Company’s common stock
  evidence_url: https://www.sec.gov/Archives/edgar/data/1704287/000121390026009792/0001213900-26-009792-index.htm

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