secwatch.observer — SEC 8-K summary ====================================== Issuer: Grayscale Bitcoin Trust ETF (GBTC) CIK: 0001588489 Form: 8-K Filed at: 2022-01-13T23:59:59+00:00 Accession: 0000950170-22-000297 Event type: other Sentiment: neutral Materiality: 0.10 Item codes: 8.01 LLM model: deepseek-v4-flash:cloud@v2 Grayscale Bitcoin Trust amends Bitcoin valuation fallback rules effective Jan 11 -------------------------------------------------------------------------------- - Amended cascading rules for determining Index Price when CoinDesk XBX is unavailable or inaccurate. - New tiered approach: primary (CoinDesk XBX), secondary (Coin Metrics Real-Time Rate), tertiary (principal market spot price), then sponsor's best judgment. - Sponsor has sole discretion to determine if an index does not reflect accurate price with no predefined criteria. - Change effective January 11, 2022; non-GAAP methodology not used in financial statements. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1588489/000095017022000297/0000950170-22-000297-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1588489/000095017022000297/gbtc-20220111.htm HTML page: https://secwatch.observer/filing/0000950170-22-000297 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer