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Filing Details

Accession Number:: 0001209191-20-062520
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2020-12-09 16:35:15
Reporting Period:: 2020-12-07

Accepted Time:: 2020-12-09 16:35:15
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
1296468	Nicholas Themelis	C/O Marketaxess Holdings Inc. 55 Hudson Yards, 15Th Floor New York NY 10001	Chief Information Officer	No	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	2020-12-07	531	$544.04	29,661	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2020-12-07	1,464	$545.14	28,197	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2020-12-07	305	$546.31	27,892	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2020-12-07	530	$547.34	26,665	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2020-12-07	697	$548.21	27,195	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2020-12-07	410	$549.59	26,255	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2020-12-07	63	$553.10	26,192	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

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 $543.63 to $544.44. 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 $544.71 to $545.57. 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 $545.73 to $546.64. 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 $547.01 to $547.92. 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 $548.01 to $549. 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 $549.41 to $549.67. 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.