---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-198816"
form_type: "8-K"
ticker: "RNTX"
cik: "0001420565"
company_name: "Rein Therapeutics, Inc."
filed_at: "2025-09-09T23:59:59+00:00"
generated_at: "2026-05-17T07:16:42.704698+00:00"
event_type: "debt"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Rein Therapeutics secures up to $6.0M in prepaid advances from Yorkville; second $1.0M tranche drawn

## Summary
- Entered Pre-Paid Advance Agreement with Yorkville for up to $6.0M over 12 months; initial $1.0M advance closed July 29, 2025.
- As of Sept 8, 2025, 479,036 shares issued at avg $1.06 to Yorkville, offsetting $500K of initial advance.
- Second $1.0M advance drawn on Sept 8, 2025 ($0.95M net proceeds); Yorkville may demand stock to reduce balance.
- Advances have 8% interest (18% default), 12-month maturity; each advance sold at 95% of face amount.

## SEC filing metadata
- accession: 0001193125-25-198816
- form_type: 8-K
- ticker: RNTX
- cik: 0001420565
- company_name: Rein Therapeutics, Inc.
- filed_at: 2025-09-09T23:59:59+00:00
- event_type: debt
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1420565/000119312525198816/0001193125-25-198816-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1420565/000119312525198816/d47459d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-198816
- JSON: https://secwatch.observer/filing/0001193125-25-198816.json
- Plain text: https://secwatch.observer/filing/0001193125-25-198816.txt

## Key facts
- Debt Financings
  Rein Therapeutics, Inc. incurred debt of $1.0 million with YA II PN, Ltd. at 8%.
  - Principal: $1.0 million
  - Counterparty: YA II PN, Ltd.
  - Rate: 8%
  - Event: incurrence
  source text: (the “Company”, “we”, “us”) in a Current Report on Form 8-K filed on July 30, 2025, on July 29, 2025 (the “Effective Date”), we entered into a Pre-Paid Advance Agreement (the “PPA”) with YA II PN, Ltd., a Cayman Islands exempt limited partnership (“Yorkville”). In accordance with the terms of the PPA, we may request pre-paid advances of up to $6.0 million from Yorkville (each, a “Pre-Paid Advance”) over a 12-month period, subject to certain limitations and conditions set forth in the PPA.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1420565/000119312525198816/0001193125-25-198816-index.htm

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