---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-055936"
form_type: "8-K"
ticker: "RNTX"
cik: "0001420565"
company_name: "Rein Therapeutics, Inc."
filed_at: "2024-03-01T23:59:59+00:00"
generated_at: "2026-06-05T05:24:21.814217+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Dr. Nolan Sigal resigns from Aileron board; Nasdaq confirms compliance with annual meeting rule

## Summary
- Dr. Nolan Sigal resigned from Board and Nominating Committee effective February 29, 2024; no disagreement cited.
- Company received Nasdaq letter confirming regained compliance with Listing Rule 5620 (annual meeting requirement) on February 29, 2024.
- No replacement director announced; Board size reduced.

## SEC filing metadata
- accession: 0001193125-24-055936
- form_type: 8-K
- ticker: RNTX
- cik: 0001420565
- company_name: Rein Therapeutics, Inc.
- filed_at: 2024-03-01T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02, 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1420565/000119312524055936/0001193125-24-055936-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1420565/000119312524055936/d797289d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-055936
- JSON: https://secwatch.observer/filing/0001193125-24-055936.json
- Plain text: https://secwatch.observer/filing/0001193125-24-055936.txt

## Key facts
- Executive change
  Nolan Sigal resigned as member of the Board of Directors at Rein Therapeutics, Inc..
  - Action: resigned
  - Role: member of the Board of Directors
  source text: On February 29, 2024, Nolan Sigal, M.D., Ph.D., notified Aileron Therapeutics, Inc. (the “Company”) of his decision to resign as a member of the Board of Directors of the Company (the “Board”), effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1420565/000119312524055936/0001193125-24-055936-index.htm

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