Companies / CoStar Group Inc

CoStar Group Inc

Nasdaq: CSGPCIK 1057352Real EstateARLINGTON, VAcostargroup.com ↗

Financials · FY2025

Revenue$3.25B
Net income$7.00M
Total debt$1.00B
Cash$1.27B
Diluted EPS$0.02
Shares outstanding405.2M

Ownership

405.2M shares outstanding · as of Jul 27, 2026
0.76%Insiders
Ownership
Insiders0.76%3,070,671
10%+ / strategic17.25%69,906,032
Institutions102.52%415,416,328
Public float0.00%0

Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 16

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Insider% of sharesShares
Florance Andrew CCEOPresident and CEO · Director
0.43%1,722,865
Simuro FrankChief Technology Officer
0.10%414,491
Saint Frederick G.President, Marketplaces
0.07%279,851
Ruggles LisaSenior VP, Global Operations
0.04%174,915
Lown Christian M.Chief Financial Officer
0.03%135,250
Boxer GeneGeneral Counsel and Secretary
0.02%95,517
Desmarais Michael JChief Human Resources Officer
0.02%87,725
Sams Louise SDirector
<0.01%28,671
Musslewhite Robert WDirector
<0.01%26,539
Hill John WDirector
<0.01%26,493

Institutional holders 862

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HolderValue% of shares
Vanguard Group Inc$4.71B17.30%
BlackRock, Inc.$957.61M8.35%
Capital International Investors$729.02M2.68%
Principal Financial Group Inc$713.87M4.37%
Bamco Inc /Ny$658.11M4.03%
BAILLIE GIFFORD &amp; CO$549.06M3.36%
State Street Corporation$521.40M4.54%
Polen Capital Management LLC$507.09M3.10%
Geode Capital Management, LLC$500.45M3.07%
Norges Bank$476.76M1.75%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Mar 1, 2026Florance Andrew C
CEO
OtherCommon Stock, par value $0.01 per share$2.66M-60K
-3.76%
1,527,273
0.38% of shares
low
Feb 27, 2026Florance Andrew C
CEO
BuyCommon Stock, par value $0.01 per share$2.48M+56K
+3.64%
1,586,866
0.39% of shares
high
May 1, 2026Florance Andrew C
CEO
BuyCommon Stock, par value $0.01 per share$2.40M+68K
+4.14%
1,719,765
0.42% of shares
high
Feb 19, 2026Florance Andrew C
CEO
OtherCommon Stock, par value $0.01 per share$943.2K-19K
-1.24%
1,531,146
0.38% of shares
low
Mar 2, 2026Saint Frederick G.
Executive
BuyCommon Stock, par value $0.01 per share$906.6K+20K
+7.70%
279,851
0.07% of shares
high
Mar 1, 2026Simuro Frank
Executive
OtherCommon Stock, par value $0.01 per share$834.7K-19K
-4.21%
425,598
0.11% of shares
low
Feb 15, 2026Florance Andrew C
CEO
OtherCommon Stock, par value $0.01 per share$786.5K-17K
-1.05%
1,655,350
0.41% of shares
low
Mar 1, 2026Saint Frederick G.
Executive
OtherCommon Stock, par value $0.01 per share$495.2K-11K
-4.10%
259,851
0.06% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
Vanguard Capital ManagementPassive13G—31,613,997—
Vanguard Portfolio ManagementPassive13G—38,292,035—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
CSGP——22160N109—