---
schema_version: "secwatch.filing_event.v1"
accession: "0001057352-23-000118"
form_type: "8-K"
ticker: "CSGP"
cik: "0001057352"
company_name: "COSTAR GROUP, INC."
filed_at: "2023-08-01T23:59:59+00:00"
generated_at: "2026-06-12T16:46:23.183967+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# CoStar appoints Angelique Brunner to Board of Directors

## Summary
- Board expands to nine members with appointment effective Aug 1, 2023.
- Brunner brings 25+ years in finance, real estate, and venture capital.
- She is CEO of EB5 Capital and previously served on boards of Cushman & Wakefield and Chesapeake Lodging Trust.
- CoStar notes consistent double-digit revenue growth and >100M monthly unique visitors across its websites.
- Brunner is an independent director; no committee assignments yet.

## SEC filing metadata
- accession: 0001057352-23-000118
- form_type: 8-K
- ticker: CSGP
- cik: 0001057352
- company_name: COSTAR GROUP, INC.
- filed_at: 2023-08-01T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1057352/000105735223000118/0001057352-23-000118-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1057352/000105735223000118/csgp-20230728.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001057352-23-000118
- JSON: https://secwatch.observer/filing/0001057352-23-000118.json
- Plain text: https://secwatch.observer/filing/0001057352-23-000118.txt

## Key facts
- Executive change
  Angelique Brunner was appointed as Director at COSTAR GROUP, INC..
  - Action: appointed
  - Role: Director
  source text: On July 28, 2023, the Board of Directors (the "Board") of CoStar Group, Inc. ("CoStar" or the "Company") appointed Angelique Brunner to serve on its Board of Directors, effective August 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1057352/000105735223000118/0001057352-23-000118-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.