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AI brief of an SEC Form 8-K · CoStar (CSGP)

CoStar Group adds three directors and names Louise Sams board chair

Neutral Impact 4 of 5 leadership Written later

CoStar Group appointed Christine M. McCarthy, John Berisford and Rachel C. Glaser to its Board, and Louise S. Sams was named Chair, after Michael R. Klein, Christopher J. Nassetta and Laura C. Kaplan resigned from the Board. The company also formed a Capital Allocation Committee to review its capital structure, capital allocation and financial targets, and signed support agreements with D. E. Shaw and Third Point that include standstill and voting commitments, which matter to shareholders because they set governance changes and activist arrangements for the coming period.

Key points

  • McCarthy, Berisford and Glaser were elected to the Board effective April 6, 2025, and will receive an annual cash retainer of $50,000 and a restricted stock award with a grant date value of $250,000.
  • Klein, Nassetta and Kaplan resigned from the Board and their committee roles effective April 6, 2025; Klein also stepped down as Chairman, effective when the new directors were elected.
  • The four-member Capital Allocation Committee is chaired by Andrew Florance, with McCarthy, Berisford and Robert W. Musslewhite as members, and will review investment in Homes.com and the timeline for its profitability.
  • The support agreements with D. E. Shaw and Third Point, dated April 6, 2025, include standstill provisions during the Standstill Period and commit the investors to vote for Board nominees.

The filing

CompanyCoStar (CSGP)
Form8-K, current report
Filed with the SECApr 7, 2025, 8:59 AM ET
Accession number0001193125-25-074119

Items reported: 1.01 Material Definitive Agreement5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:12 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on April 07, 2025.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.