---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-004443"
form_type: "8-K"
ticker: "RNTX"
cik: "0001420565"
company_name: "Rein Therapeutics, Inc."
filed_at: "2025-01-10T23:59:59+00:00"
generated_at: "2026-05-28T04:47:34.163450+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Rein Therapeutics (formerly Aileron) changes name to Rein Therapeutics, new ticker RNTX

## Summary
- Name change from Aileron Therapeutics to Rein Therapeutics effective January 10, 2025 at 4:00 p.m. Eastern Time.
- New trading symbol RNTX on Nasdaq Capital Market; trading under new name and symbol starts January 13, 2025.
- CUSIP number for common stock remains unchanged; no impact on stockholder rights.
- Certificate of amendment and amended bylaws filed as exhibits to the 8-K.

## SEC filing metadata
- accession: 0001193125-25-004443
- form_type: 8-K
- ticker: RNTX
- cik: 0001420565
- company_name: Rein Therapeutics, Inc.
- filed_at: 2025-01-10T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1420565/000119312525004443/0001193125-25-004443-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1420565/000119312525004443/d898488d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-004443
- JSON: https://secwatch.observer/filing/0001193125-25-004443.json
- Plain text: https://secwatch.observer/filing/0001193125-25-004443.txt

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