secwatch.observer — SEC 8-K summary ====================================== Issuer: ClearSign Technologies Corp (CLIR) CIK: 0001434524 Form: 8-K Filed at: 2025-12-08T23:59:59+00:00 Accession: 0001104659-25-119321 Event type: other Sentiment: neutral Materiality: 0.10 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 ClearSign Technologies posts new investor presentation on website for upcoming meetings -------------------------------------------------------------------------------- - Investor presentation posted to Company website on December 8, 2025. - Presentation intended for use in upcoming investor meetings and conferences. - No financial results or material changes disclosed in the filing. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465925119321/0001104659-25-119321-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1434524/000110465925119321/tm2532891d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-25-119321 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer