secwatch.observer — SEC 8-K summary
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Issuer:     ClearSign Technologies Corp (CLIR)
CIK:        0001434524
Form:       8-K
Filed at:   2026-04-10T23:59:59+00:00
Accession:  0001104659-26-042017
Event type: earnings
Sentiment:  positive
Materiality: 0.65
Item codes: 2.02, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

ClearSign Q4 revenue $3.7M record; FY revenue $5.2M +44% YoY
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- Q4 2025 revenue $3.7M (record); FY revenue $5.2M, up 44% YoY.
- Cash $9.2M at Dec 31, 2025; 5.33M shares outstanding post 1-for-10 reverse split.
- Orders for 68 ClearSign Core burners from Gulf Coast and California refiners; also flare order.
- Successful DOE/NETL testing of 100% hydrogen-capable ClearSign Core-2 burner.
- Backlog includes new heater configurations; management expects continued momentum.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1434524/000110465926042017/0001104659-26-042017-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1434524/000110465926042017/tm2611530d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-26-042017

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