Institutional shares held 35.3 Million
165K calls
78.4K puts
Total value of holdings $7.88B
$36.8M calls
$17.5M puts
Market Cap $8.45B
37,636,800 Shares Out.
Institutional ownership 93.82%
# of Institutions 571


Latest Institutional Activity in MKTX

Top Purchases

Q1 2025
Millennium Management LLC Shares Held: 619K ($139M)
Q1 2025
Citadel Advisors LLC Shares Held: 474K ($106M)
Q1 2025
Holocene Advisors, LP Shares Held: 251K ($56.3M)
Q1 2025
American Century Companies Inc Shares Held: 222K ($49.9M)
Q1 2025
Burgundy Asset Management Ltd. Shares Held: 403K ($90.3M)

Top Sells

Q1 2025
Guardcap Asset Management LTD Shares Held: 1.52M ($342M)
Q1 2025
Jpmorgan Chase & CO Shares Held: 445K ($99.9M)
Q1 2025
Gamma Investing LLC Shares Held: 848 ($190K)
Q1 2025
State Street Corp Shares Held: 1.47M ($329M)
Q1 2025
Ubs Asset Management Americas Inc Shares Held: 141K ($31.7M)

About MKTX

MarketAxess Holdings Inc., together with its subsidiaries, operates an electronic trading platform for institutional investor and broker-dealer companies worldwide. It offers the access to liquidity in the U.S. investment-grade bonds, U.S. high-yield bonds, and U.S. Treasuries, as well as municipal bonds, emerging market debts, Eurobonds, and other fixed income securities. The company, through its Open Trading protocols, executes bond trades between and among institutional investor and broker-dealer clients in an all-to-all anonymous trading environment for corporate bonds. It also offers trading-related products and services, including composite+ pricing and other market data products to assist clients with trading decisions; auto-execution and other execution services for clients requiring specialized workflow solutions; connectivity solutions that facilitate straight-through processing; and technology services to optimize trading environments. In addition, the company provides various pre-and post-trade services, such as trade matching, trade publication, regulatory transaction reporting, and market and reference data across a range of fixed-income and other products. MarketAxess Holdings Inc. was incorporated in 2000 and is headquartered in New York, New York.


Insider Transactions at MKTX

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
59.8K Shares
From 18 Insiders
Grant, award, or other acquisition 34.9K shares
Bona fide gift 25K shares
Sell / Disposition
91.1K Shares
From 15 Insiders
Bona fide gift 25.6K shares
Open market or private sale 57.7K shares
Payment of exercise price or tax liability 7.83K shares

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