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COSTAR GROUP, INC.

For the period ended Mar 31, 2026. Filed Apr 29, 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.

Mar 31, 2026 · Filed Apr 29, 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 March 31, 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 Program(2)(in millions)
January 1 through 31—$66.31—$1,500
February 1 through 289.0$44.498.9$1,105
March 1 through 312.8$44.312.5$995
Total11.8$44.4411.4
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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 March 31, 2026, the Company repurc hased 11.4 million CoStar Group Shares for an aggregate cost of $505 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.