---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-039001"
form_type: "8-K"
ticker: "INIS"
cik: "0001038277"
company_name: "RADNOSTIX INC"
filed_at: "2025-12-31T23:59:59+00:00"
generated_at: "2026-05-16T11:52:37.185245+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# International Isotopes changes name to Radnostix; ticker INIS unchanged

## Summary
- Name changed from International Isotopes Inc. to Radnostix, Inc. effective December 23, 2025.
- Board approved the change on October 21, 2025; shareholders consented on November 25, 2025.
- Rebranding reflects expanded focus on radioisotopes and theranostics for healthcare applications.
- Common stock continues trading under symbol INIS on OTCQB; no action required from shareholders.

## SEC filing metadata
- accession: 0001437749-25-039001
- form_type: 8-K
- ticker: INIS
- cik: 0001038277
- company_name: RADNOSTIX INC
- filed_at: 2025-12-31T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1038277/000143774925039001/0001437749-25-039001-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1038277/000143774925039001/inis20251230_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-039001
- JSON: https://secwatch.observer/filing/0001437749-25-039001.json
- Plain text: https://secwatch.observer/filing/0001437749-25-039001.txt

## Source-grounded claims
- claim_id: 2e6c9d072078f1d7f85611260c198ec94f1921b7
  claim: RADNOSTIX INC: Changed corporate name from International Isotopes Inc. to Radnostix, Inc. effective December 23, 2025 (effective 2025-12-23).
  evidence_excerpt: On December 23, 2025, International Isotopes Inc. (“we,” “our,” “us,” or the “Company”) filed a Certificate of Amendment in the state of Texas for the sole purpose of amending our Certificate of Formation to change our corporate name from International Isotopes Inc. to Radnostix, Inc. (the “ Name Change ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1038277/000143774925039001/0001437749-25-039001-index.htm

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