secwatch.observer — SEC 8-K summary ====================================== Issuer: SilverBox Corp IV (SBXD) CIK: 0002015947 Form: 8-K Filed at: 2026-08-05T11:06:57+00:00 Accession: 0001104659-26-090712 Event type: other_material Sentiment: neutral Materiality: 0.60 Item codes: 1.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 SilverBox Corp IV extends business combination deadline to Dec 31, 2026 ----------------------------------------------------------------------- - Second Amendment to BCA extends Outside Date from Aug 6, 2026 to Dec 31, 2026. - Further extension allowed if SPAC obtains its own deadline extension, subject to mutual agreement. - Amendment signed by all parties on Aug 4, 2026; original BCA dated Aug 6, 2025. - Deal with Parataxis Holdings (digital assets/crypto) remains pending; SPAC avoids immediate liquidation. - Prior First Amendment was dated May 1, 2026; this is the second amendment. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/2015947/000110465926090712/0001104659-26-090712-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/2015947/000110465926090712/tm2622195d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-090712 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer