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Filing Details

Accession Number:: 0001209191-21-021358
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2021-03-17 16:33:32
Reporting Period:: 2021-03-15

Accepted Time:: 2021-03-17 16:33:32
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1278021	Marketaxess Holdings Inc	MKTX	Security Brokers, Dealers & Flotation Companies (6211)	522230784

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1296466	M Richard Mcvey	C/O Marketaxess Holdings Inc. 55 Hudson Yards, 15Th Floor New York NY 10001	Chairman & Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Show Other Fields >>

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	490	$513.76	785,583	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	771	$514.82	784,812	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	2,846	$515.84	781,966	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	2,603	$516.73	779,363	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	2,851	$517.81	776,512	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	1,430	$518.81	775,082	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	4,169	$519.90	770,913	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	2,076	$520.83	768,837	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	879	$521.68	767,958	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	985	$522.98	766,973	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	400	$523.68	766,573	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	200	$525.00	766,373	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	100	$528.61	766,273	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	100	$530.96	766,173	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-03-15	100	$532.76	766,073	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock, Par Value $0.003 Per Share	2,000	Indirect	By Immediate Family Members

Footnotes

This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.
The transactions were executed in multiple trades at prices ranging from $513.18 to $514.06. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $514.29 to $515.24. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $515.31 to $516.30. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $516.31 to $517.28. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $517.33 to $518.29. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $518.33 to $519.28. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $519.35 to $520.34. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $520.40 to $521.29. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $521.43 to $522.14. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $522.45 to $523.33. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.
The transactions were executed in multiple trades at prices ranging from $523.50 to $523.76. The price above reflects the weighted average sales price. Detailed information regarding the number of shares sold at each separate price will be provided upon request by the Commission staff, the Issuer or a security holder of the Issuer.