{"schema_version":"secwatch.filing_event.v1","accession":"0001437749-24-029619","form_type":"8-K","ticker":"IBIT","cik":"0001980994","company_name":"iShares Bitcoin Trust ETF","filed_at":"2024-09-19T23:59:59+00:00","discovered_at":"2026-05-14T18:03:15.314663+00:00","generated_at":"2026-05-31T03:46:28.777930+00:00","sec_items":["1.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"iShares Bitcoin Trust ETF amends Coinbase Prime Broker Agreement for withdrawal processing","bullets":["Amendment shortens withdrawal processing time to 12 hours on Custodial Account as long as unpaid Trade Credit is covered by combined Trading and Vault Balance.","Agreement updated to require that, while Trade Credits remain unpaid, withdrawals to blockchains are allowed only if equivalent amount remains in aggregate of Trading and Vault Balance.","Amendment effective September 16, 2024, between BlackRock Fund Advisors (for iShares Bitcoin Trust ETF) and Coinbase entities.","Changes affect Exhibit A (Custodial Services) and Exhibit D (Committed Trade Financing) of the Prime Broker Agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001437749-24-029619","json":"https://secwatch.observer/filing/0001437749-24-029619.json","markdown":"https://secwatch.observer/filing/0001437749-24-029619.md","text":"https://secwatch.observer/filing/0001437749-24-029619.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1980994/000143774924029619/0001437749-24-029619-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1980994/000143774924029619/bit20240918_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T03:46:28.777930+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"}