secwatch.observer — SEC 8-K summary ====================================== Issuer: ClearSign Technologies Corp (CLIR) CIK: 0001434524 Form: 8-K Filed at: 2026-06-18T20:15:25+00:00 Accession: 0001104659-26-075734 Event type: other_material Sentiment: neutral Materiality: 0.30 Item codes: 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 ClearSign closes full over-allotment of 116,667 shares for ~$471K net proceeds ------------------------------------------------------------------------------ - Underwriter Newbridge Securities purchased 116,667 additional shares at $4.33 each, fully exercising the over-allotment option. - Net proceeds to ClearSign were approximately $470,858 after underwriting discounts and estimated expenses. - Proceeds will be used for working capital, R&D, marketing, sales, and general corporate purposes. - The over-allotment was part of a firm-commitment public offering that initially closed June 1, 2026. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1434524/000110465926075734/0001104659-26-075734-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1434524/000110465926075734/tm2618244d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-075734 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer