Costar Group, Inc.

CSGP

As of the close on Sep 25, 2026

Price

$28.09

Market cap

$11.4B

P/E (diluted TTM)

—

The quarterly per-share figures could not be confirmed against net income

EPS (TTM)

—

The quarterly per-share figures could not be confirmed against net income

Dividend yield

—

Dividend records do not yet cover the latest payments

Figures shown here come from public SEC filings. Dates beside each section show the available history.

How Costar Group, Inc. Makes Money

Follow each dollar of revenue through to what shareholders keep.

From revenue to net income

Pick a year or quarter. Each band's width is its dollar amount.

Source: Costar Group, Inc. — 10-Q filed Jul 29, 2026

Financial Summary

Choose a year or quarter, compare it with the same period a year earlier, and open any row for its full filing history.

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SEC filings supply these figures; updates after the dates shown are not included. This page includes 17 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jun 24, 2026.

Ownership

Who holds the shares, as reported in SEC ownership filings.

Unusually large insider trades

Each trade is compared with the other insider trades of the same kind in the same security among Costar Group, Inc.'s recent filings on file. Size alone is context, not a prediction or evidence of improper trading.

2024-04-26 · Wheeler Scott T: Larger than 28 of the 29 other insider sales of Common Stock, par value $0.01 per share on file. SEC filing
2023-06-27 · SIMURO FRANK: Larger than 27 of the 29 other insider sales of Common Stock, par value $0.01 per share on file. SEC filing
2023-04-28 · FLORANCE ANDREW C: Larger than all 29 other insider sales of Common Stock, par value $0.01 per share on file. SEC filing

Independent insiders buying near the same time

2026-02-27–2026-03-06: 4 event(s) across 4 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing )

Purchases & sales (open market or private)

		Security	Code		Price	Filing
2026-05-01	FLORANCE ANDREW C · President and CEO	Common Stock, par value $0.01 per share	P — Open market or private purchase	+68,330	35.17	SEC filing
2026-05-01	FLORANCE ANDREW C · President and CEO	Common Stock, par value $0.01 per share	P — Open market or private purchase	+3,100	35.82	SEC filing
2026-03-06	Sams Louise S · Director	Common Stock, par value $0.01 per share	P — Open market or private purchase	+1,000	48.36	SEC filing
2026-03-02	Glaser Rachel C · Director	Common Stock, par value $0.01 per share	P — Open market or private purchase	+1,000	44.94	SEC filing
2026-03-02	SAINT FREDERICK G. · President, Marketplaces	Common Stock, par value $0.01 per share	P — Open market or private purchase	+20,000	45.33	SEC filing
2026-02-27	FLORANCE ANDREW C · President and CEO	Common Stock, par value $0.01 per share	P — Open market or private purchase	+55,720	44.52	SEC filing
2025-11-13	Hill John W · Director	Common Stock, par value $0.01 per share	S — Open market or private sale	−2,250	68.68	SEC filing
2025-11-13	Cann Cynthia Cammett · Chief Accounting Officer	Common Stock, par value $0.01 per share	S — Open market or private sale	−1,841	68.79	SEC filing

Showing 8 of 17 rows

Grants, exercises, tax & gifts

		Security	Code		Filing
2026-06-23	BERISFORD JOHN L · Director	Common Stock, par value $0.01 per share	A — Grant, award, or other acquisition	+8,262	SEC filing
2026-06-23	McCarthy Christine M · Director	Common Stock, par value $0.01 per share	A — Grant, award, or other acquisition	+8,262	SEC filing
2026-06-23	Glaser Rachel C · Director	Common Stock, par value $0.01 per share	A — Grant, award, or other acquisition	+8,262	SEC filing
2026-06-23	Hill John W · Director	Common Stock, par value $0.01 per share	A — Grant, award, or other acquisition	+8,262	SEC filing
2026-06-23	Brunner Angelique G. · Director	Common Stock, par value $0.01 per share	A — Grant, award, or other acquisition	+8,262	SEC filing
2026-06-23	Sams Louise S · Director	Common Stock, par value $0.01 per share	A — Grant, award, or other acquisition	+8,262	SEC filing
2026-06-23	Musslewhite Robert W · Director	Common Stock, par value $0.01 per share	A — Grant, award, or other acquisition	+8,262	SEC filing
2026-06-15	Cann Cynthia Cammett · Chief Accounting Officer	Common Stock, par value $0.01 per share	F — Payment of exercise price or tax by delivering securities	−461	SEC filing

Showing 8 of 40 rows

Other activity

		Security	Code		Filing
2026-02-19	Ruggles Lisa · Senior VP, Global Operations	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−17,583	SEC filing
2026-02-19	SIMURO FRANK · Chief Technology Officer	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−30,727	SEC filing
2026-02-19	SAINT FREDERICK G. · President, Marketplaces	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−17,583	SEC filing
2026-02-19	FLORANCE ANDREW C · President and CEO	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−104,983	SEC filing
2025-02-13	SIMURO FRANK · Chief Technology Officer	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−6,452	SEC filing
2025-02-13	Ruggles Lisa · Senior VP, Global Operations	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−6,452	SEC filing
2025-02-13	FLORANCE ANDREW C · President and CEO	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−28,896	SEC filing
2025-02-13	SAINT FREDERICK G. · President, Marketplaces	Common Stock, par value $0.01 per share	D — Disposition to the issuer	−6,452	SEC filing

Showing 8 of 10 rows

These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.