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.
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 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 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.
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.
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.
CoStar Group reported strong Q1 2026 results with revenue of $897 million, up 23% from $732 million a year earlier, marking its 60th consecutive quarter of double-digit growth. Net income was $3 million, or $0.01 per diluted share, improving from a net loss of $15 million or $(0.04) per share.
On a non-GAAP basis, Adjusted Net Income rose to $94 million and Adjusted EPS to $0.23, while Adjusted EBITDA doubled to $132 million. Annualized net new bookings were $67 million, up 20% year-over-year.
The company highlighted rapid adoption of its new Homes.com AI application, driving a 119% increase in organic traffic and growing Homes.com members to 35,000, more than 200% higher than a year ago. For 2026, CoStar reaffirmed revenue guidance of $3.78–$3.82 billion (about 17% growth at the midpoint) and raised Adjusted EBITDA guidance to $780–$820 million. It now expects full-year 2026 Adjusted EPS of $1.32–$1.39 and Q2 2026 revenue of $922–$932 million with Adjusted EBITDA of $160–$180 million and Adjusted EPS of $0.27–$0.30.
CoStar Group reported strong Q1 2026 results with revenue of $897 million, up 23% from $732 million a year earlier, marking its 60th consecutive quarter of double-digit growth. Net income was $3 million, or $0.01 per diluted share, improving from a net loss of $15 million or $(0.04) per share.
On a non-GAAP basis, Adjusted Net Income rose to $94 million and Adjusted EPS to $0.23, while Adjusted EBITDA doubled to $132 million. Annualized net new bookings were $67 million, up 20% year-over-year.
The company highlighted rapid adoption of its new Homes.com AI application, driving a 119% increase in organic traffic and growing Homes.com members to 35,000, more than 200% higher than a year ago. For 2026, CoStar reaffirmed revenue guidance of $3.78–$3.82 billion (about 17% growth at the midpoint) and raised Adjusted EBITDA guidance to $780–$820 million. It now expects full-year 2026 Adjusted EPS of $1.32–$1.39 and Q2 2026 revenue of $922–$932 million with Adjusted EBITDA of $160–$180 million and Adjusted EPS of $0.27–$0.30.
CoStar Group director Christine M. McCarthy filed an amended initial ownership report to correct her disclosed holdings. The amendment shows she directly holds 350 shares of Common Stock, par value $0.01 per share. A footnote explains these shares were omitted from her original Form 3 and from one subsequent Form 4.
The Vanguard Group filed Amendment No. 13 to a Schedule 13G/A reporting its beneficial ownership in CoStar Group Inc. The filing states 0% ownership and an as of alignment change: certain Vanguard subsidiaries will report disaggregated holdings following an internal realignment effective January 12, 2026. The filing is signed by the Head of Global Fund Administration on 03/26/2026.