Welcome to our dedicated page for COSTAR GROUP SEC filings (Ticker: CSGP), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
CoStar Group filings document the regulatory record of a Delaware operating company that provides online real estate marketplaces, information, analytics, and 3D digital twin technology. Its 8-K reports commonly furnish quarterly and annual operating results, Regulation FD disclosures, investor presentation channels, and material corporate events tied to its property-market data and marketplace business.
Proxy and governance filings cover annual meeting matters, board composition, executive compensation arrangements, severance plans, and related employment agreements. Recent filings also document completed acquisition activity, capital actions, and formal disclosures connected to CoStar Group’s corporate structure and public-company governance.
Sams Louise S reported acquisition or exercise transactions in this Form 4 filing.
CoStar Group director Louise S. Sams received a grant of 8,262 shares of restricted common stock at no purchase price. The award vests in full on the earlier of the first anniversary of the grant date or the company’s 2027 annual meeting of stockholders. After this grant, she directly holds 28,671 shares.
McCarthy Christine M reported acquisition or exercise transactions in this Form 4 filing.
COSTAR GROUP, INC. director Christine M. McCarthy received a grant of 8,262 shares of common stock as a restricted stock award. The award vests in full on the earlier of the first anniversary of the grant date or the Company’s 2027 Annual Meeting of Stockholders. After this grant and the inclusion of shares that were inadvertently omitted from a prior filing, she directly holds 11,585 shares.
CoStar Group’s Chief Accounting Officer Cynthia Cammett reported a routine tax-withholding transaction. On June 15, 2026, 461 shares of common stock were disposed of at $32.04 per share to cover tax obligations. After this non-market event, she directly holds 24,687 shares.
CoStar Group plans to expand further into new home real estate by acquiring Zonda, a leading new home construction data and marketplace business, for $800 million in cash. Zonda serves more than 3,000 homebuilding ecosystem customers and generates mostly subscription revenue with 104% net customer retention, indicating strong stickiness.
The deal is expected to close in the second half of 2026, subject to Hart-Scott-Rodino and other regulatory clearances and customary conditions, including no material adverse effect at Zonda. CoStar expects the acquisition to be accretive to adjusted EPS in the first full year of ownership and to create cross-sell opportunities across its commercial, residential, multifamily, lending, and analytics businesses.
CoStar Group, Inc. President and CEO Andrew C. Florance reported buying additional company stock. He made two open-market purchases of the company’s common stock, totaling 71,430 shares. One trade covered 3,100 shares at $35.82 per share and the other 68,330 shares at $35.17 per share.
CoStar Group’s proxy outlines strong 2025 growth, major capital moves, and governance updates ahead of the 2026 virtual annual meeting. Revenue reached $3.2 billion in 2025, up 19% year over year, while Adjusted EBITDA rose 83% to $442 million and net income was $7 million.
The company highlights momentum at Homes.com, now with 35,000 agent subscribers generating over $100 million in annualized run-rate revenue and 2.1 billion views in 2025. CoStar completed a $500 million share repurchase and the Board approved a new $1.5 billion program.
Stockholders are asked to elect eight directors, ratify Ernst & Young as auditor, approve executive compensation on an advisory basis, and approve a new 2026 Employee Stock Purchase Plan. The proxy details extensive board refreshment, tighter pay‑for‑performance alignment, and enhanced stockholder engagement.
CoStar Group Inc reported that Vanguard Capital Management beneficially owned 31,613,997 shares of Common Stock, representing 7.53% of the class as of 03/31/2026. The filer reports sole voting power for 4,190,094 shares and sole dispositive power for 31,613,997 shares.
CoStar Group reported Q1 2026 revenue of $897 million, up from $732 million a year earlier, driven by both Commercial and Residential Real Estate segments. The company generated net income of $3 million, compared with a $15 million loss in Q1 2025, as operating income swung to a $3 million profit.
Operating cash flow strengthened to $152 million from $53 million, though cash, cash equivalents, and restricted cash declined to $1.316 billion after $505 million of stock repurchases. CoStar also carried a $99 million litigation accrual tied to the Matterport-related Brown judgment and maintained $1.0 billion of Senior Notes due 2030.
Vanguard Portfolio Management reported beneficial ownership of 38,292,035 shares of CoStar Group Inc Common Stock, representing 9.12% of the class. The filing shows sole dispositive power for 38,292,035 shares and sole voting power for 57,902 shares. Vanguard states these holdings include securities held for Vanguard funds and managed accounts over which it or its affiliates exercise dispositive power. The filing is signed by Ashley Grim as Head of Global Fund Administration.