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COSTAR GROUP, INC. (CSGP) Ownership Summary
Institutional Holders
Total Number of Holders 816
% of Shares Outstanding 97.91%
Total Shares Held 399,948,746
Total Value of Holdings $29,652,200,028.44
Net Activity 3,258,899
 
Top 5 Holders Shares Held Shares Changed
VANGUARD GROUP INC 65,451,499 541,700
BLACKROCK INC. 38,886,450 2,358,559
PRINCIPAL FINANCIAL GROUP INC 19,592,181 (213,552)
BAMCO INC /NY/ 19,337,618 (53,665)
STATE STREET CORP 16,126,174 309,884

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades47
Number of Buys00
Number of Sells47
Net Activity (149,036) (184,030)
 
Top 5 TradesShares Traded Date
RUGGLES LISA116/1/2024
SAINT FREDERICK G.2,5005/16/2024
RUGGLES LISA20,0005/9/2024
NASSETTA CHRISTOPHER J46,0005/7/2024
DESMARAIS MICHAEL J3,8004/26/2024

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5% Ownership (SC 13D & SC 13G Filings)
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View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   VANGUARD GROUP INC  02/13/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   BLACKROCK INC.  01/25/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   PRICE T ROWE ASSOCIATES INC /MD/  02/14/23   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   VANGUARD GROUP INC  02/09/23   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   BLACKROCK INC.  01/30/23   File this document to a folder.