{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-301639","form_type":"8-K","ticker":"GBTC","cik":"0001588489","company_name":"Grayscale Bitcoin Trust ETF","filed_at":"2021-10-19T23:59:59+00:00","discovered_at":"2026-05-14T18:04:13.170659+00:00","generated_at":"2026-06-28T19:59:13.358256+00:00","sec_items":["7.01","9.01"],"event_type":"regulatory","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"NYSE Arca files 19b-4 to convert Grayscale Bitcoin Trust (GBTC) into spot ETF","bullets":["NYSE Arca filed Form 19b-4 with SEC to list and trade GBTC shares as a Bitcoin spot ETF under Rule 8.201-E.","GBTC holds ~3.44% of all Bitcoin in circulation and has nearly $40B in AUM.","Filing follows SEC clearance of Bitcoin Futures ETF; Grayscale argues spot ETF should also be permitted.","Grayscale committed to converting all 14 of its other digital currency investment products into ETFs.","If approved, GBTC would become the first Bitcoin spot ETF in the US."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-301639","json":"https://secwatch.observer/filing/0001193125-21-301639.json","markdown":"https://secwatch.observer/filing/0001193125-21-301639.md","text":"https://secwatch.observer/filing/0001193125-21-301639.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1588489/000119312521301639/0001193125-21-301639-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1588489/000119312521301639/d216598d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T19:59:13.358256+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}