---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-049160"
form_type: "8-K"
ticker: "CLIR"
cik: "0001434524"
company_name: "ClearSign Technologies Corp"
filed_at: "2024-04-19T23:59:59+00:00"
generated_at: "2026-06-03T15:44:02.468719+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# ClearSign Technologies prices $9.3M public offering and concurrent private placement of common stock and warrants

## Summary
- Public offering of 4,620,760 shares + 4,620,760 warrants at $0.91/share and $0.01/warrant.
- Private placement of 5,405,405 shares + 8,108,108 warrants at $0.91/share and $0.015/1.5 warrants.
- Combined gross proceeds ~$9.3M; net proceeds for working capital, R&D, and sales.
- Public warrants exercisable immediately at $1.05; private warrants after 6 months; both 5-year term.
- Offerings expected to close April 23, 2024; underwriter has 45-day option for additional 15%.

## SEC filing metadata
- accession: 0001104659-24-049160
- form_type: 8-K
- ticker: CLIR
- cik: 0001434524
- company_name: ClearSign Technologies Corp
- filed_at: 2024-04-19T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 1.01, 3.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465924049160/0001104659-24-049160-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1434524/000110465924049160/tm2412212d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-049160
- JSON: https://secwatch.observer/filing/0001104659-24-049160.json
- Plain text: https://secwatch.observer/filing/0001104659-24-049160.txt

## Key facts
- Material Agreements
  ClearSign Technologies Corp entered into Underwriting Agreement with Public Ventures, LLC valued at aggregate gross proceeds of $4,251,099 (effective 2024-04-19).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: Public Ventures, LLC
  - Value: aggregate gross proceeds of $4,251,099
  - Effective: 2024-04-19
  source text: On April 19, 2024, ClearSign Technologies Corporation, a Delaware corporation (the “Company”), entered into an underwriting agreement (the “Underwriting Agreement”) with Public Ventures, LLC (“Public Ventures”), as underwriter, relating to the offering, issuance and sale of an aggregate of (i) 4,620,760 shares of the Company’s common stock
  evidence_url: https://www.sec.gov/Archives/edgar/data/1434524/000110465924049160/0001104659-24-049160-index.htm
- Material Agreements
  ClearSign Technologies Corp entered into Securities Purchase Agreement with an accredited investor (effective 2024-04-19).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: an accredited investor
  - Effective: 2024-04-19
  source text: On April 19, 2024, the Company entered into a securities purchase agreement (the “Securities Purchase Agreement”) with an accredited investor (“Private Purchaser”) whereby the Company will issue, in a private placement (the “Concurrent Private Offering”) to be completed concurrently with the completion of the Public Offering, an aggregate of (i) 5,405,405 shares of Common Stock (the “Private Shares”), and (ii) redeemable warrants (the “Private Warrants”) to purchase up to an aggregate of 8,108,108 shares of the Company’s common stock
  evidence_url: https://www.sec.gov/Archives/edgar/data/1434524/000110465924049160/0001104659-24-049160-index.htm

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