Costar Group, Inc. filed 1 current report with the SEC under Item 5.02, which covers directors and officers leaving or being appointed, the latest on 2026-07-13. Between them they name 2 people, with 1 appointment and 2 departures. Each change below is quoted from the filing and linked to it.
Every change, newest first
Appointed: Robin Rossmann, Chief Financial Officer, effective 2026-07-31
On July 13, 2026, the Board of Directors (the "Board") of CoStar Group, Inc. (the "Company" or "CoStar Group") appointed Robin Rossmann to serve as the Company's Chief Financial Officer, effective July 31, 2026 ("Effective Date").
Departing: Christian Lown, Chief Financial Officer, effective 2026-07-31
On July 7, 2026, Christian Lown, Chief Financial Officer (Principal Financial Officer) of the Company, informed the Company of his decision to resign, effective July 31, 2026, for another opportunity outside the Company's industry.
Departing: Christian Lown
Mr. Lown has advised the Company that his resignation was not a result of any disagreement with the Company on any matter related to the Company's operations, policies or practices.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.