secwatch.observer — SEC 8-K summary
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Issuer:     COSTAR GROUP, INC. (CSGP)
CIK:        0001057352
Form:       8-K
Filed at:   2026-08-21T20:03:36+00:00
Accession:  0001057352-26-000072
Event type: m_and_a
Sentiment:  positive
Materiality: 0.80
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

CoStar completes $800M cash acquisition of Zonda, expanding into new home data marketplaces
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- CoStar Group acquired Zonda for $800M cash; deal announced May 29, 2026 and now closed after regulatory approvals.
- Zonda serves 3,000+ customers; 2025 revenue ~$170M at 23% Adjusted EBITDA margin.
- Adds NewHomeSource.com and Livabl marketplaces; U.S. new home market ~$400B in annual sales.
- Q2 2026 revenue $925M (+18% YoY); Adjusted EBITDA doubled to $184M; residential revenue up 33% to $444M.
- Zonda CEO Jeff Meyers will stay on; CoStar sees synergies with Matterport's spatial tech.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1057352/000105735226000072/0001057352-26-000072-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1057352/000105735226000072/csgp-20260821.htm
  HTML page:      https://secwatch.observer/filing/0001057352-26-000072

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