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COSTAR GROUP, INC.

For the period ended Sep 30, 2026. Filed Oct 28, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Oct 28, 2026

CSGP$30.33-2.9%Stored close · as of Nov 10, 2026

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Unregistered Sales of Equity Securities and Use of Proceeds

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table is a summary of our repurchases of common stock during each of the three months ended September 30, 2026:

ISSUER PURCHASES OF EQUITY SECURITIES

2026Total Number ofSharesPurchased(1)(in millions)AveragePrice Paidper ShareTotal Number ofSharesPurchased asPart of PubliclyAnnouncedPlans orPrograms(2)(in millions)Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs(2)(in millions)
July 1 through 311.0$29.020.9$885
August 1 through 310.9$31.380.9$858
September 1 through 300.9$29.850.9$832
Total2.8$30.062.7
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(1) The number includes CoStar Group Shares tendered by employees to the Company to satisfy the employees' minimum tax withholding obligations arising as a result of vesting of restricted stock grants under the Company’s 2025 Stock Incentive Plan, for which shares were purchased by the Company based on their fair market value on the trading day immediately preceding the vesting date.

(2)In December 2025, the Board of Directors approved the Stock Repurchase Program which authorizes the repurchase of up to $1.5 billion of outstanding CoStar Group Shares, with no expiration date. During the three months ended September 30, 2026, the Company repurchased 2.7 million CoStar Group Shares with a market value of $81 million. See Note 13 for further discussion regarding the Stock Repurchase Program and stock repurchase activity.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.