Vanguard Group Inc's Updated Ownership in MarketAxess Holdings Inc

The Vanguard Group Inc has filed an amendment to its Schedule 13G/A, reporting its updated ownership in MarketAxess Holdings Inc. As of September 30, 2025, Vanguard Group Inc owns 3,854,312 shares of MarketAxess Holdings Inc's common stock, representing 10.31% of the total shares. This marks a decrease of 505,060 shares from its previous filing, reflecting a 11.59% reduction in its holdings. The value of these shares is approximately $616,921,178.72, a decrease of 36.64% from the previous value. Vanguard Group Inc has indicated that these shares are held on behalf of its clients, including investment companies and managed accounts, with no single client owning more than 5% of the shares. The filing was signed by Ashley Grim, Head of Global Fund Administration, on October 31, 2025.