secwatch.observer — SEC 8-K summary ====================================== Issuer: MIAMI INTERNATIONAL HOLDINGS, INC. (MIAX) CIK: 0001438472 Form: 8-K Filed at: 2025-08-15T23:59:59+00:00 Accession: 0001628280-25-040532 Event type: other_material Sentiment: positive Materiality: 0.90 Item codes: 3.02, 8.01 LLM model: deepseek-v4-flash:cloud@v2 Miami International Holdings completes IPO of 17.25M shares at $23, gross proceeds $396.8M -------------------------------------------------------------------------------- - IPO closed August 15, 2025, with 17,250,000 shares sold at $23.00 per share, including full underwriter over-allotment of 2,250,000 shares. - Gross proceeds to company of $396.8 million before underwriting discounts and expenses. - All outstanding Series B preferred and nonvoting common converted into 4,525,000 common shares immediately prior to IPO closing. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1438472/000162828025040532/0001628280-25-040532-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1438472/000162828025040532/miamiinternationalholdings.htm HTML page: https://secwatch.observer/filing/0001628280-25-040532 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer