secwatch.observer — SEC 8-K summary ====================================== Issuer: ClearSign Technologies Corp (CLIR) CIK: 0001434524 Form: 8-K Filed at: 2026-01-07T23:59:59+00:00 Accession: 0001104659-26-001752 Event type: earnings Sentiment: positive Materiality: 0.80 Item codes: 2.02, 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 ClearSign preliminary Q4 revenue ~$3.6M (+510% YoY), FY revenue ~$5.2M (+44% YoY) -------------------------------------------------------------------------------- - Preliminary Q4 2025 revenue of approx $3.6M, up 510% from $590K in Q4 2024. - Preliminary FY 2025 revenue of approx $5.2M, up 44% from $3.6M in FY 2024. - Q4 performance driven by completion of a 26-burner order for a U.S. Gulf Coast petrochemical facility. - Revenue also included testing, engineering, flares, and service work across multiple product lines. - CEO expects growth trajectory to sustain or exceed in 2026, citing expanded burner portfolio and order pipeline. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465926001752/0001104659-26-001752-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1434524/000110465926001752/tm262320d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-001752 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer