secwatch.observer — SEC 8-K summary ====================================== Issuer: SilverBox Corp IV (SBXD) CIK: 0002015947 Form: 8-K Filed at: 2026-05-04T23:59:59+00:00 Accession: 0001104659-26-054874 Event type: m_and_a Sentiment: neutral Materiality: 0.50 Item codes: 1.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 SilverBox Corp IV extends business combination deadline with Parataxis to August 6, 2026 -------------------------------------------------------------------------------- - First Amendment to Business Combination Agreement extends Outside Date from May 6, 2026 to August 6, 2026. - Original agreement was dated August 6, 2025; amendment signed on May 1, 2026. - Extension provides additional time to satisfy closing conditions for the SPAC merger. - No other terms of the Business Combination Agreement were modified. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/2015947/000110465926054874/0001104659-26-054874-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/2015947/000110465926054874/tm2613455d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-054874 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer