---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-23-121296"
form_type: "8-K"
ticker: "CLIR"
cik: "0001434524"
company_name: "ClearSign Technologies Corp"
filed_at: "2023-11-27T23:59:59+00:00"
generated_at: "2026-06-07T21:25:49.051652+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ClearSign receives Nasdaq noncompliance notice over board independence after director resignation

## Summary
- ClearSign received Nasdaq notice on Nov 24, 2023, for noncompliance with board independence rules (Rules 5605(b)(1) and 5605(c)(2)(A)).
- Board lacks majority independent directors; audit committee has only two independent directors (needs three).
- Nasdaq granted cure period until next annual shareholder meeting or Nov 11, 2024; if meeting before May 7, 2024, cure by May 7, 2024.
- Notice has no immediate effect on listing of common stock (CLIR) on Nasdaq.

## SEC filing metadata
- accession: 0001104659-23-121296
- form_type: 8-K
- ticker: CLIR
- cik: 0001434524
- company_name: ClearSign Technologies Corp
- filed_at: 2023-11-27T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 3.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465923121296/0001104659-23-121296-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1434524/000110465923121296/tm2331617d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-23-121296
- JSON: https://secwatch.observer/filing/0001104659-23-121296.json
- Plain text: https://secwatch.observer/filing/0001104659-23-121296.txt

## Key facts
- Listing & Compliance Notices
  ClearSign Technologies Corp received a nasdaq deficiency notice notice regarding board independence (rules 5605(b)(1), 5605(c)(2)(A), 5605(a)(2), 5605(c)(4), 5605(b)(1)(A)).
  - Exchange: nasdaq
  - Notice: deficiency notice
  - Deficiency: board independence
  - Rules: 5605(b)(1), 5605(c)(2)(A), 5605(a)(2), 5605(c)(4), 5605(b)(1)(A)
  source text: November 24, 2023, ClearSign Technologies Corporation (the “Company”) received a notice (the “Notice”) from the Listing Qualifications Department of the Nasdaq Stock Market LLC (“Nasdaq”) stating that the previously announced resignation of Gary DiElsi from the Company’s Board of Directors (the “Board”) resulted in noncompliance with the board of directors independence requirements set forth in Nasdaq Listing Rule 5605(b)(1) and the requirement in Nasdaq Listing Rule 5605(c)(2)(A) to have an audit committee of at least three independent directors. More specifically, when the Notice was issued
  evidence_url: https://www.sec.gov/Archives/edgar/data/1434524/000110465923121296/0001104659-23-121296-index.htm

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