---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-099235"
form_type: "8-K"
ticker: "CLIR"
cik: "0001434524"
company_name: "ClearSign Technologies Corp"
filed_at: "2026-08-20T20:15:27+00:00"
generated_at: "2026-08-20T20:16:09.545205+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# ClearSign reports $9.9M cash, six M1 burner orders, and adds ExxonMobil veteran to board

## Summary
- Cash and equivalents ~$9.9M at June 30, 2026; 5,328,730 shares outstanding.
- Six M1 burners sold to two West Texas operators: three to Fortune 500 midstream firm, three via Tulsa Heaters Midstream.
- Received purchase order for phase two testing of 32-burner retrofit for California refinery.
- Board appoints Larry Saddler, retired ExxonMobil global tech sponsor for heat transfer, to board.
- Press release provides no revenue or EPS figures for Q2 2026.

## SEC filing metadata
- accession: 0001104659-26-099235
- form_type: 8-K
- ticker: CLIR
- cik: 0001434524
- company_name: ClearSign Technologies Corp
- filed_at: 2026-08-20T20:15:27+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465926099235/0001104659-26-099235-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1434524/000110465926099235/tm2623643d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-099235
- JSON: https://secwatch.observer/filing/0001104659-26-099235.json
- Plain text: https://secwatch.observer/filing/0001104659-26-099235.txt

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