---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-085648"
form_type: "8-K"
ticker: "CLIR"
cik: "0001434524"
company_name: "ClearSign Technologies Corp"
filed_at: "2025-08-29T23:59:59+00:00"
generated_at: "2026-05-17T09:11:14.993742+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# ClearSign regains Nasdaq board independence compliance after director determination

## Summary
- Board determined Anthony DiGiandomenico independent; appointed him to Audit Committee on Aug 26, 2025.
- G. Todd Silva named Audit Committee chair and audit committee financial expert effective same date.
- Nasdaq issued letter on Aug 28, 2025 confirming compliance with Listing Rules 5605(b)(1) and (c)(2)(A).
- Board reduced to 5 directors; one vacancy remains due to Aug 4 resignations of de Lacy and Schrecker.

## SEC filing metadata
- accession: 0001104659-25-085648
- form_type: 8-K
- ticker: CLIR
- cik: 0001434524
- company_name: ClearSign Technologies Corp
- filed_at: 2025-08-29T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465925085648/0001104659-25-085648-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1434524/000110465925085648/tm2524675d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-085648
- JSON: https://secwatch.observer/filing/0001104659-25-085648.json
- Plain text: https://secwatch.observer/filing/0001104659-25-085648.txt

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