MARKETAXESS HOLDINGS INC

For the period ended Sep 30, 2024. Filed Nov 6, 2024.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2024 · Filed Nov 6, 2024

MKTX$165.67+0.0%Stored close · as of Nov 9, 2026

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Contents

Item 6. Exhibits

Exhibit Index:

Number	Description
31.1*	Certification by Chief Executive Officer pursuant to Exchange Act Rule 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2*	Certification by Chief Financial Officer pursuant to Exchange Act Rule 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*	Certification by Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*	Certification by Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS*	Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL Document
101.SCH*	Inline XBRL Taxonomy Extension Schema Document
104	The cover page from the Company’s Quarterly report on Form 10-Q for the quarter ended September 30, 2024 has been formatted in Inline XBRL and is included in Exhibits 101.

*	Filed herewith.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	MARKETAXESS HOLDINGS INC.
Date: November 6, 2024	By:	/s/ CHRISTOPHER R. CONCANNON
		Christopher R. Concannon
		Chief Executive Officer
		(principal executive officer)

Date: November 6, 2024	By:	/s/ ILENE FISZEL BIELER
		Ilene Fiszel Bieler
		Chief Financial Officer
		(principal financial officer)

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