{"filing":{"accession_number":"0001381197-26-000130","cik":"0001381197","ticker":"IBKR","company_name":"Interactive Brokers Group, Inc.","form":"8-K","filing_date":"2026-07-31","report_date":"2026-07-31","primary_document":"ibkr-20260731.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1381197/000138119726000130/ibkr-20260731.htm"},"events":[{"id":22842,"run_id":20676,"accession_number":"0001381197-26-000130","anchor_item_number":"8.01","event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.92,"summary":"Interactive Brokers took down 2,499,567 shares of common stock from its shelf Registration Statement on Form S-3 via a Prospectus Supplement under Rule 424(b)(5). This is a registered public offering of equity securities that will dilute existing shareholders. The specific share count and reference to the shelf takedown mechanism indicate a material capital-raising transaction.","company_name":"Interactive Brokers Group, Inc.","ticker":"IBKR","filing_date":"2026-07-31","form":"8-K","submitted_at":null,"items":[{"id":22915,"accession_number":"0001381197-26-000130","item_number":"8.01","item_title":"Other Events.","event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.92,"reasoning":"Interactive Brokers took down 2,499,567 shares of common stock from its shelf Registration Statement on Form S-3 via a Prospectus Supplement under Rule 424(b)(5). This is a registered public offering of equity securities that will dilute existing shareholders. The specific share count and reference to the shelf takedown mechanism indicate a material capital-raising transaction.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-02T02:33:28.712364+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":22915,"accession_number":"0001381197-26-000130","item_number":"8.01","item_title":"Other Events.","event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.92,"reasoning":"Interactive Brokers took down 2,499,567 shares of common stock from its shelf Registration Statement on Form S-3 via a Prospectus Supplement under Rule 424(b)(5). This is a registered public offering of equity securities that will dilute existing shareholders. The specific share count and reference to the shelf takedown mechanism indicate a material capital-raising transaction.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-02T02:33:28.712364+00:00","company_name":"Interactive Brokers Group, Inc.","ticker":"IBKR","filing_date":"2026-07-31"}]}