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.
The CoStar Group, Inc. (NASDAQ: CSGP) SEC filings page on Stock Titan provides access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. CoStar Group is a public company that describes itself as a global leader in commercial real estate information, analytics, online marketplaces, and 3D digital twin technology, and its filings offer detail on financial performance, governance, acquisitions, and capital allocation.
Among the documents available are Form 8-K current reports, which CoStar Group uses to announce material events. The provided examples include 8-K filings reporting quarterly financial and operating results, the completion of the acquisition of Domain Holdings Australia Limited, and stockholder actions at the annual meeting such as the approval of the CoStar Group, Inc. 2025 Stock Incentive Plan and advisory votes on executive compensation. These filings also describe the company’s intent to use its corporate website as a channel for distributing material information.
In addition to 8-Ks, investors typically review CoStar Group’s annual reports on Form 10-K, quarterly reports on Form 10-Q, and proxy statements for insight into its subscription-based business model, brand portfolio, risk factors, and governance practices. Forms related to equity compensation plans and stockholder votes, such as the 2025 Stock Incentive Plan, are also reflected in the company’s filings.
Stock Titan’s platform pairs these CoStar Group filings with AI-powered tools that summarize key points and help explain technical sections, such as non-GAAP reconciliations, definitions of metrics like Adjusted EBITDA, and descriptions of compensation or incentive plans. Users can quickly see what each filing covers and then drill into the full SEC document for more detail, supporting research into CSGP’s financial condition, corporate actions, and regulatory history.
CoStar Group, Inc. reported that Chief Accounting Officer Cynthia Cammett received an award of 4,374 shares of common stock as compensation. Under the Management Stock Purchase Plan, part of her annual cash incentive was converted into Deferred Stock Units at $46.34 per unit, and she was granted an equal number of Restricted Stock Units that vest in full after four years. Following this grant, she directly holds 26,342 shares of CoStar common stock.
CoStar Group, Inc. reported that President and CEO Andrew C. Florance acquired 124,162 shares of common stock through an equity award. Under a Management Stock Purchase Plan, his annual cash incentive was converted into Deferred Stock Units at $46.34 per unit, and he received Restricted Stock Units for an equal number of shares that vest in full after four years. Following this grant, he directly holds 1,651,435.03 shares of CoStar common stock, reflecting a sizable, compensation-related increase rather than an open-market purchase.
CoStar Group’s Chief Financial Officer Christian M. Lown received an equity compensation award tied to his annual incentive. On March 10, 2026, he was granted 12,268 shares of common stock at no cash cost to him, recorded as a grant or award acquisition. According to the company’s Management Stock Purchase Plan, all or part of his annual cash incentive was converted into Deferred Stock Units at $46.34 per unit, and he was awarded an equal number of Restricted Stock Units that vest in full after four years. Following this grant, Lown directly holds 135,250 shares of CoStar Group common stock.
CoStar Group’s General Counsel and Secretary, Gene Boxer, received a stock-based compensation award. On March 10, 2026, he acquired 21,920 shares of CoStar Group common stock at a stated price of $0.00 per share, bringing his direct holdings to 95,945 shares.
According to the footnote, under the Management Stock Purchase Plan, all or part of his annual cash incentive was converted into Deferred Stock Units at $46.34 per unit, and the company granted an equal number of Restricted Stock Units that vest in full after four years. This is a compensation-related, non-market transaction rather than an open-market purchase or sale.
CoStar Group’s Chief Human Resources Officer, Michael J. Desmarais, received a grant of 17,676 shares of common stock as reported on a Form 4. These shares were acquired at a reported price of $0.00 per share, reflecting a compensation-related award rather than a market purchase.
According to the footnote, a portion of his annual cash incentive was converted into Deferred Stock Units at $46.34 per unit, and he was also awarded an equal number of Restricted Stock Units that vest in full after four years. Following this award, Desmarais directly owns 90,598 shares of CoStar Group common stock.
CoStar Group director buys additional shares. Louise S. Sams, a director of CoStar Group, Inc., purchased 1000 shares of common stock in an open-market transaction at a price of $48.3600 per share. Following this purchase, Sams directly holds a total of 20409 CoStar Group shares.
CoStar Group Chief Financial Officer Christian M. Lown reported a mix of equity award and tax-related share disposition. He received 39,652 restricted stock units, each equal to one CoStar common share, vesting in three equal installments on March 1 of 2027, 2028, and 2029. To cover tax withholding, 7,175 common shares were disposed of at $44.63 per share, leaving him with 122,982 common shares held directly.
SAINT FREDERICK G. reported acquisition or exercise transactions in this Form 4 filing.
CoStar Group reported that Frederick G. Saint, President, Marketplaces, received a grant of 39,652 restricted stock units. Each unit represents a contingent right to receive one share of CoStar Group common stock. The units vest in three equal installments on March 1, 2027, March 1, 2028, and March 1, 2029.
CoStar Group President and CEO Andrew C. Florance reported a mix of equity compensation events. He received a grant of 83,708 restricted stock units on February 27, 2026, each representing a contingent right to one share of CoStar Group common stock. These units vest in three equal installments on March 1, 2027, March 1, 2028, and March 1, 2029.
On March 1, 2026, 59,593 shares of common stock were disposed of at $44.63 per share in a tax-withholding transaction to cover obligations associated with equity awards. After this disposition, he directly owned 1,527,273.03 shares of common stock, in addition to the 83,708 restricted stock units.
CoStar Group General Counsel and Secretary Gene Boxer reported two equity-related transactions. He received 26,888 restricted stock units on February 27, 2026, each representing one share of common stock. These RSUs vest in three equal installments on March 1, 2027, 2028 and 2029.
On March 1, 2026, Boxer had 4,547 shares of common stock disposed in a tax-withholding transaction at $44.63 per share, corresponding to the prior Nasdaq closing price. After this, he directly owned 74,025 common shares and 26,888 RSUs.