{"filing":{"accession_number":"0001057352-26-000048","cik":"0001057352","ticker":"CSGP","company_name":"COSTAR GROUP, INC.","form":"8-K","filing_date":"2026-06-25","report_date":null,"primary_document":"csgp-20260623.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1057352/000105735226000048/csgp-20260623.htm"},"events":[{"id":13765,"run_id":12228,"accession_number":"0001057352-26-000048","anchor_item_number":"5.07","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"summary":"CoStar Group held its Annual Meeting of Stockholders on June 23, 2026, with voting results disclosing election of eight directors (with support ranging from 93.92% to 99.50%), ratification of Ernst \u0026 Young LLP as independent auditor, advisory say-on-pay approval at 71.38%, and approval of the 2026 Employee Stock Purchase Plan authorizing 2,500,000 shares.","company_name":"COSTAR GROUP, INC.","ticker":"CSGP","filing_date":"2026-06-25","form":"8-K","submitted_at":null,"items":[{"id":10997,"accession_number":"0001057352-26-000048","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_compensation","event_domain":"governance","is_material":true,"confidence":0.75,"reasoning":"The Item 5.02 disclosure centers on stockholder approval of the 2026 Employee Stock Purchase Plan (ESPP), which authorizes issuance of 2,500,000 shares and replaces the prior 2021 ESPP. This is a compensatory arrangement for employees and officers. While the press release also reports director election results and say-on-pay approval (71.38%), the primary 8-K Item 5.02 content focuses on the ESPP plan approval, making this an executive compensation event rather than a shareholder vote results classification.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-25T13:01:47.617948+00:00","company_name":"","ticker":null,"filing_date":""},{"id":10998,"accession_number":"0001057352-26-000048","item_number":"5.07","item_title":"Submission of Matters to a Vote of Security Holders.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"Item 5.07 discloses the final voting results from CoStar Group's Annual Meeting of Stockholders held on June 23, 2026. The filing presents detailed vote tallies for four proposals: (1) election of eight directors, (2) ratification of Ernst \u0026 Young LLP as independent auditor, (3) advisory say-on-pay vote, and (4) approval of the 2026 ESPP. All proposals passed with strong stockholder support, including overwhelming director reelection (93.92%–99.50% votes for) and 71.38% approval of executive compensation. This is a standard shareholder vote results disclosure required under Item 5.07.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-25T13:01:47.617948+00:00","company_name":"","ticker":null,"filing_date":""},{"id":10999,"accession_number":"0001057352-26-000048","item_number":"7.01","item_title":"Regulation FD Disclosure.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"The filing discloses voting results from CoStar Group's Annual Meeting of Stockholders held on June 23, 2026, including director election results (e.g., Andrew C. Florance 99.46%, Louise S. Sams 93.92%) and the advisory say-on-pay vote (71.38% approval). This is a classic shareholder_vote_results disclosure under Item 5.07, reporting the outcomes of proposals voted on at the annual meeting.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-25T13:01:47.617948+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":10997,"accession_number":"0001057352-26-000048","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_compensation","event_domain":"governance","is_material":true,"confidence":0.75,"reasoning":"The Item 5.02 disclosure centers on stockholder approval of the 2026 Employee Stock Purchase Plan (ESPP), which authorizes issuance of 2,500,000 shares and replaces the prior 2021 ESPP. This is a compensatory arrangement for employees and officers. While the press release also reports director election results and say-on-pay approval (71.38%), the primary 8-K Item 5.02 content focuses on the ESPP plan approval, making this an executive compensation event rather than a shareholder vote results classification.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-25T13:01:47.617948+00:00","company_name":"COSTAR GROUP, INC.","ticker":"CSGP","filing_date":"2026-06-25"},{"id":10998,"accession_number":"0001057352-26-000048","item_number":"5.07","item_title":"Submission of Matters to a Vote of Security Holders.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"Item 5.07 discloses the final voting results from CoStar Group's Annual Meeting of Stockholders held on June 23, 2026. The filing presents detailed vote tallies for four proposals: (1) election of eight directors, (2) ratification of Ernst \u0026 Young LLP as independent auditor, (3) advisory say-on-pay vote, and (4) approval of the 2026 ESPP. All proposals passed with strong stockholder support, including overwhelming director reelection (93.92%–99.50% votes for) and 71.38% approval of executive compensation. This is a standard shareholder vote results disclosure required under Item 5.07.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-25T13:01:47.617948+00:00","company_name":"COSTAR GROUP, INC.","ticker":"CSGP","filing_date":"2026-06-25"},{"id":10999,"accession_number":"0001057352-26-000048","item_number":"7.01","item_title":"Regulation FD Disclosure.","event_type":"shareholder_vote_results","event_domain":"governance","is_material":true,"confidence":0.98,"reasoning":"The filing discloses voting results from CoStar Group's Annual Meeting of Stockholders held on June 23, 2026, including director election results (e.g., Andrew C. Florance 99.46%, Louise S. Sams 93.92%) and the advisory say-on-pay vote (71.38% approval). This is a classic shareholder_vote_results disclosure under Item 5.07, reporting the outcomes of proposals voted on at the annual meeting.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-06-25T13:01:47.617948+00:00","company_name":"COSTAR GROUP, INC.","ticker":"CSGP","filing_date":"2026-06-25"}]}