---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-26-031647"
form_type: "8-K"
ticker: "NIMU"
cik: "0000720762"
company_name: "NON INVASIVE MONITORING SYSTEMS INC /FL/"
filed_at: "2026-07-02T12:00:28+00:00"
generated_at: "2026-07-02T12:05:06.698452+00:00"
event_type: "debt"
sentiment: "negative"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# NIMS extends maturity of four $75K promissory notes with related parties to Sept 30, 2026

## Summary
- Extended maturity of $75K note with Frost Gamma Investments Trust (Dr. Phillip Frost) from June 30 to Sept 30, 2026.
- Extended maturity of $75K note with Dr. Jane Hsiao (Chairman/Interim CEO) from June 30 to Sept 30, 2026.
- Extended maturity of second $75K note with Frost Gamma Investments Trust (2022 note) to Sept 30, 2026.
- Extended maturity of second $75K note with Dr. Jane Hsiao (2022 note) to Sept 30, 2026.
- No other terms of the four promissory notes were amended.

## SEC filing metadata
- accession: 0001493152-26-031647
- form_type: 8-K
- ticker: NIMU
- cik: 0000720762
- company_name: NON INVASIVE MONITORING SYSTEMS INC /FL/
- filed_at: 2026-07-02T12:00:28+00:00
- event_type: debt
- sentiment: negative
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/720762/000149315226031647/0001493152-26-031647-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/720762/000149315226031647/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-26-031647
- JSON: https://secwatch.observer/filing/0001493152-26-031647.json
- Plain text: https://secwatch.observer/filing/0001493152-26-031647.txt

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