SEC Form 4 · accession 0001628280-26-052968
COSTAR GROUP, INC. · CSGP
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Andrew C Florance
Officer — Founder and CEO · Director
Period of report
Aug 4, 2026
Accepted (ET)
Aug 5, 2026 · 9:27 am EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001057352
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock, par value $0.01 per shareF1 | Aug 4, 2026 | P | 83,300 | $29.89 | A | 1,806,165 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Average based on sales prices ranging from $29.57 to $29.99.