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 (CSGP) has a notice of proposed sale covering up to 3,500 shares of common stock, with an aggregate market value of $106,067.50, to be sold through Ameritas Investment Corp on or after August 5, 2026 on NASDAQ.
The shares relate to stock issued as payment for services rendered on several dates, including 989 shares on November 1, 2025, 25 shares on September 15, 2025, 922 shares on August 1, 2025, 617 shares on September 15, 2024, and 947 shares on September 14, 2015, all classified as compensation common stock.
CoStar Group, Inc. founder and CEO Andrew C. Florance reported purchasing 83,300 shares of common stock on August 4, 2026 at an average price of $29.89 per share, based on prices ranging from $29.57 to $29.99. After this open-market purchase, he directly holds 1,806,165.03 shares.
Rossmann Robin Jack reported acquisition or exercise transactions in this Form 4 filing.
CoStar Group, Inc. granted Chief Financial Officer Robin Jack Rossmann 34,771 restricted stock units on July 31, 2026. Each unit represents a contingent right to receive one share of common stock. The award vests in three equal installments on August 1, 2027, 2028 and 2029, and Rossmann now directly holds 34,771 RSUs.
CoStar Group, Inc. Chief Accounting Officer Cynthia Cammett received a grant of 26,078 restricted stock units on July 31, 2026, each representing one share of common stock vesting in four equal installments on August 1, 2027, 2028, 2029, and 2030.
On August 1, 2026, 1,077 shares of common stock were withheld at $28.76 per share to satisfy tax obligations, leaving her with 23,610 CoStar common shares held directly, in addition to the new RSU award.
COSTAR GROUP, INC. executive SAINT FREDERICK G., President, Marketplaces, disposed of 1,436 shares of common stock on August 1, 2026. The shares were delivered or withheld to satisfy an exercise price or tax liability at $28.76 per share. After this transaction, he directly holds 278,415 shares of CoStar common stock.
CoStar Group, Inc. reports the initial equity holdings of Chief Financial Officer Robin Jack Rossmann. As of July 31, 2026, he directly owns 86,691 shares of common stock and 10,223 restricted stock units, each RSU representing one share. These RSUs vest in four equal installments on March 15, 2027, March 15, 2028, March 15, 2029 and March 15, 2030.
CoStar Group, Inc. reported results for the quarter and six months ended June 30, 2026. Quarterly revenue was $925 million, up from $781 million a year earlier, with net income of $55 million versus $6 million. For the first half, revenue reached $1,822 million and net income was $58 million, compared with $1,513 million and a $9 million loss in 2025. Basic and diluted EPS were $0.14 for both the quarter and year to date.
Revenue increased in both segments: Commercial Real Estate generated $481 million and Residential Real Estate $444 million in the quarter. Net cash provided by operating activities rose to $267 million for the first half. The company spent $587 million on stock repurchases, ended June with $1,266 million of cash and cash equivalents and $1,000 million of 2.800% Senior Notes outstanding, and agreed to acquire Zonda for $800 million in cash, subject to customary closing conditions.
CoStar Group posted strong Q2 2026 results, with revenue of $925 million, up 18% from $781 million a year earlier. Net income rose to $55 million and diluted EPS to $0.14, compared with $6 million and $0.01. Adjusted Net Income reached $128 million, Adjusted EPS $0.32, and Adjusted EBITDA climbed to $184 million, more than doubling year-over-year as EBITDA increased 441% to $157 million. This was the company’s 61st consecutive quarter of double-digit revenue growth.
Management described the quarter as a profitability inflection, noting operating costs grew just 2% and the residential segment turned Adjusted EBITDA positive, a $41 million improvement over Q1. New AI products, including Homes.com Ai and Apartments.com Ai, drove higher engagement, with over half a million AI sessions, longer session times, and large increases in 3D tour use and traffic-to-lead conversion.
For 2026, CoStar guides to revenue of $3.715–$3.755 billion, representing about 15% growth at the midpoint, and Adjusted EBITDA of $780–$820 million, increasing the midpoint by $30 million versus prior guidance. Q3 2026 guidance calls for revenue of $935–$945 million, Adjusted EBITDA of $190–$210 million and Adjusted EPS of $0.31–$0.34.
CoStar Group, Inc. appointed Robin Rossmann as Chief Financial Officer, effective July 31, 2026, succeeding Christian Lown, who is resigning to pursue an opportunity outside the company’s industry; his departure is stated not to result from any disagreement over operations, policies or practices.
Rossmann currently leads CoStar’s European business, where over the past two years he eliminated approximately $51 million in costs, about 25% of the European cost structure, while delivering double-digit revenue growth and launching CoStar in France. His compensation includes an annual base salary of £440,000, transitioning to $590,000 upon relocation to Arlington, Virginia, an annual bonus target equal to 100% of base salary, a one-time $2,500,000 equity award split 40% into time-vested RSUs and 60% into performance stock units for 2026–2028, and a cash relocation subsidy of $500,000, plus participation in the Executive Severance Plan.
CoStar Group, Inc. Chief Financial Officer Christian M. Lown reported a tax-withholding disposition of company stock. On this Form 4, 5,597 shares of common stock were delivered at $29.36 per share to satisfy tax obligations tied to equity compensation. Following this transaction, he continues to hold 129,653 shares of CoStar Group common stock directly.