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Filing Details

Accession Number:: 0001209191-21-036245
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2021-05-27 16:28:43
Reporting Period:: 2021-05-25

Accepted Time:: 2021-05-27 16:28:43
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
1704380	M Kevin Mcpherson	C/O Marketaxess Holdings Inc. 55 Hudson Yards, 15Th Floor New York NY 10001	Global Head Of Sales	No	Yes	No	No

Reported Non-Derivative Transactions

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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	Acquisiton	2021-05-25	283	$103.30	71,371	No	4	M	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-05-25	283	$460.10	71,088	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Acquisiton	2021-05-26	4,717	$103.30	75,805	No	4	M	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-05-26	1,926	$462.83	73,879	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-05-26	906	$464.21	72,973	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-05-26	1,416	$465.03	71,557	No	4	S	Direct
Common Stock, Par Value $0.003 Per Share	Disposition	2021-05-26	469	$465.91	71,088	No	4	S	Direct

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

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (right to buy)	Disposition	2021-05-25	283	$0.00	283	$103.30
Common Stock	Stock Option (right to buy)	Disposition	2021-05-26	4,717	$0.00	4,717	$103.30

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
16,052		2022-01-31	No	4	M	Direct
11,335		2022-01-31	No	4	M	Direct

Footnotes

The transactions were executed in multiple trades at prices ranging from $460.00 to $460.47. 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 $462.52 to $463.28. 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 $463.55 to $464.51. 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 $464.65 to $465.54. 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 $465.70 to $466.38. 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 stock options were fully exercisable.