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

CoStar Group Appoints Nana Banerjee to Board, Expanding It to Nine Directors

Neutral Impact 2 of 5 leadership Written later

CoStar Group said its Board appointed Nana Banerjee as an independent director effective immediately on March 15, 2026, expanding the Board to nine directors, eight of whom are independent. He has not been named to any Board committee, and the filing gives no financial figures.

Key points

  • Nana Banerjee appointed to the Board on March 15, 2026, effective immediately
  • Board expands to nine directors, eight of whom are independent
  • Banerjee previously served as President and CEO of Pelmorex Corp. and McGraw-Hill
  • No committee assignment at this time; he will join the director compensation program

The filing

CompanyCoStar (CSGP)
Form8-K, current report
Filed with the SECMar 16, 2026, 6:05 AM ET
Accession number0001057352-26-000024

Items reported: 5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:12 AM ET, from the text of the filing and its press-release exhibits 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 March 16, 2026.

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