COSTAR GROUP, INC. (CSGP)

Industrials · Services-Business Services, NEC

COSTAR GROUP, INC. (CSGP) stock research on InvestAtlant: institutional ownership from 13F filings, insider Form 4 activity, and SEC context.

Top institutional holders (2026-Q3)

InstitutionSharesValue% Outstanding
Douglas Lane & Associates, LLC 1,980,027 $54.25M 0.49%
Pictet Asset Management Holding SA 1,129,215 $30.94M 0.28%
PRINCIPAL FINANCIAL GROUP INC 615,761 6.87M 0.15%
ASSETMARK, INC 519,361 4.23M 0.13%
United Asset Strategies, Inc. 481,507 3.19M 0.12%
Ninety One UK Ltd 392,883 0.76M 0.10%
NEW YORK STATE TEACHERS RETIREMENT SYSTEM 328,936 $9.0K 0.08%
S.E.E.D. Planning Group LLC 318,719 $8.73M 0.08%

Recent insider transactions

DateInsiderTitleTypeValue
2026-08-07 Cann Cynthia Cammett Chief Accounting Officer Sale 47.4K
2026-08-05 Hill John W Director Sale 05.7K
2026-08-04 FLORANCE ANDREW C Founder and CEO, Director Purchase $2.49M
2026-05-01 FLORANCE ANDREW C President and CEO, Director Purchase $2.40M
2026-05-01 FLORANCE ANDREW C President and CEO, Director Purchase 11.0K
2026-03-06 Sams Louise S Director Purchase $48.4K

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Holdings from SEC 13F. Insider trades from Form 4. Congress from House and Senate PTRs. Real-time market prices via TradingView.