COSTAR GROUP, INC. 8-K

What Happened
CoStar Group, Inc. (CSGP) filed a Current Report on Form 8-K on April 28, 2026 announcing its financial and operating results for the quarter ended March 31, 2026. The company furnished a press release disclosing those quarterly results as Exhibit 99.1 to the 8-K. The filing was signed by Chief Financial Officer Christian M. Lown.

Key Details

• Filing date: April 28, 2026; reporting period: quarter ended March 31, 2026.
• The earnings/quarterly results were disclosed via a press release furnished as Exhibit 99.1 to the Form 8-K.
• The company says it will use its corporate website (investors.costargroup.com) to distribute material company information, including investor presentations.
• The filing was executed by CFO Christian M. Lown.

Why It Matters
This 8-K signals that CoStar has publicly reported its latest quarterly earnings, revenue and operating results; investors should review the furnished press release and the company’s investor site for the detailed financial figures, commentary and any guidance. The Regulation FD disclosure confirms CoStar will post investor materials on its website, which is a primary channel to access slides and updates related to the quarterly results.