---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-001822"
form_type: "8-K"
ticker: "CLIR"
cik: "0001434524"
company_name: "ClearSign Technologies Corp"
filed_at: "2024-01-05T23:59:59+00:00"
generated_at: "2026-06-07T03:02:39.910457+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# ClearSign extends purchase right for clirSPV to Dec 31, 2024

## Summary
- clirSPV LLC's Purchase Right to participate in future equity offerings extended to Dec. 31, 2024.
- Extension follows two-thirds unit holder consent to waive Redemption Right until Dec. 31, 2024.
- Board member Robert T. Hoffman Sr. is managing member of clirSPV's managing member.

## SEC filing metadata
- accession: 0001104659-24-001822
- form_type: 8-K
- ticker: CLIR
- cik: 0001434524
- company_name: ClearSign Technologies Corp
- filed_at: 2024-01-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465924001822/0001104659-24-001822-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1434524/000110465924001822/tm242146d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-001822
- JSON: https://secwatch.observer/filing/0001104659-24-001822.json
- Plain text: https://secwatch.observer/filing/0001104659-24-001822.txt

## Key facts
- Material Agreements
  ClearSign Technologies Corp amended Stock Purchase Agreement with clirSPV LLC (effective 2023-12-30).
  - Action: amendment
  - Agreement: equity purchase
  - Counterparty: clirSPV LLC
  - Effective: 2023-12-30
  source text: On December 30, 2023, the Company received notice from clirSPV LLC that the holders of at least two-thirds of the outstanding units of clirSPV LLC agreed to extend the waiver of the Redemption Right until December 31, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1434524/000110465924001822/0001104659-24-001822-index.htm

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