{"schema_version":"secwatch.filing_event.v1","accession":"0001381197-23-000054","form_type":"8-K","ticker":"IBKR","cik":"0001381197","company_name":"Interactive Brokers Group, Inc.","filed_at":"2023-07-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:33.746746+00:00","generated_at":"2026-06-13T02:15:55.620977+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Interactive Brokers registers 630,000 shares from shelf registration statement","bullets":["Filed prospectus supplement to register 630,000 shares of common stock.","Shelf registration Statement No. 333-273451 filed with SEC on July 26, 2023.","Dechert LLP legal opinion on share validity filed as exhibit.","Number of shares represents less than 1% of outstanding common stock."],"urls":{"canonical":"https://secwatch.observer/filing/0001381197-23-000054","json":"https://secwatch.observer/filing/0001381197-23-000054.json","markdown":"https://secwatch.observer/filing/0001381197-23-000054.md","text":"https://secwatch.observer/filing/0001381197-23-000054.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1381197/000138119723000054/0001381197-23-000054-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1381197/000138119723000054/ibkr-20230726x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-13T02:15:55.620977+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"}