secwatch.observer — SEC 8-K summary
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Issuer:     COSTAR GROUP, INC. (CSGP)
CIK:        0001057352
Form:       8-K
Filed at:   2026-03-16T23:59:59+00:00
Accession:  0001057352-26-000024
Event type: leadership
Sentiment:  neutral
Materiality: 0.35
Item codes: 5.02, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

CoStar Group appoints Nana Banerjee to board; brings AI and analytics expertise
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- Nana Banerjee appointed independent director effective March 15, 2026; board expands to nine directors, eight independent.
- Banerjee formerly CEO of Pelmorex Corp (The Weather Network), with deep AI and advanced analytics experience.
- He also served as Senior Managing Director at Cerberus Capital Management and CEO of McGraw-Hill.
- No committee assignments have been made at this time; compensation follows standard director program.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1057352/000105735226000024/0001057352-26-000024-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1057352/000105735226000024/csgp-20260315.htm
  HTML page:      https://secwatch.observer/filing/0001057352-26-000024

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer