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MARKETAXESS HOLDINGS INC (MKTX) Ownership Summary
Institutional Holders
Total Number of Holders 527
% of Shares Outstanding 99.16%
Total Shares Held 37,434,433
Total Value of Holdings $9,695,518,147.00
Net Activity 291,291
 
Top 5 Holders Shares Held Shares Changed
VANGUARD GROUP INC 4,530,823 (8,617)
BLACKROCK INC. 2,949,436 (274,497)
GUARDCAP ASSET MANAGEMENT LTD 2,146,781 (279,116)
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. 2,068,347 527,022
VAN ECK ASSOCIATES CORP 1,828,055 170,095

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades48
Number of Buys00
Number of Sells48
Net Activity (4,209) (8,649)
 
Top 5 TradesShares Traded Date
CASPER STEPHEN P1,0009/6/2024
MCPHERSON KEVIN M1,6928/14/2024
PINTOFF SCOTT9008/13/2024
ROUPIE CHRISTOPHE PIERRE DANIEL6178/8/2024
CASPER STEPHEN P5006/7/2024

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5% Ownership (SC 13D & SC 13G Filings)
View Form   Filer  Received  Period 
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View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   T. ROWE PRICE INVESTMENT MANAGEMENT, INC.  02/16/24   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   GUARDIAN CAPITAL LP  02/14/24   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   T. ROWE PRICE INVESTMENT MANAGEMENT, INC.  02/14/24   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   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.