{"schema_version":"secwatch.filing_event.v1","accession":"0001381197-23-000011","form_type":"8-K","ticker":"IBKR","cik":"0001381197","company_name":"Interactive Brokers Group, Inc.","filed_at":"2023-02-02T23:59:59+00:00","discovered_at":"2026-05-14T18:03:44.693231+00:00","generated_at":"2026-06-20T02:06:38.397974+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Founder Peterffy adopts 10b5-1 plan to sell up to 20,000 IBKR shares daily","bullets":["Thomas Peterffy may sell up to 20,000 shares/day of Class A common stock at market prices.","Plan runs from Jan 28, 2023 until July 29, 2023, or until shares exhausted or plan terminated.","Sales are for personal tax, diversification, and liquidity; Peterffy has no control over timing.","Trades will be disclosed via SEC filings; plan complies with Rule 10b5-1 and Rule 144."],"urls":{"canonical":"https://secwatch.observer/filing/0001381197-23-000011","json":"https://secwatch.observer/filing/0001381197-23-000011.json","markdown":"https://secwatch.observer/filing/0001381197-23-000011.md","text":"https://secwatch.observer/filing/0001381197-23-000011.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1381197/000138119723000011/0001381197-23-000011-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1381197/000138119723000011/ibkr-20230128x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T02:06:38.397974+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"}