Richard M. McVey - 08 Dec 2022 Form 4 Insider Report for MARKETAXESS HOLDINGS INC (MKTX)

Role: Chairman & CEO, Director
Signature: /s/ Jason Edelstein, as Attorney-in-Fact for Richard M. McVey
Issuer symbol: MKTX
Transactions as of: 08 Dec 2022
Transactions value $: $-1,581,017
Form type: 4
Filing time: 12 Dec 2022, 15:15:32 UTC
Previous filing: 22 Feb 2022
Next filing: 16 Dec 2022
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MKTX	Common Stock, par value $0.003 per share	Options Exercise	$3,845,178	+24,515	+3.48%	$156.85	729,746	08 Dec 2022	Direct
transaction	MKTX	Common Stock, par value $0.003 per share	Tax liability	$-5,426,195	-19,163	-2.63%	$283.16	710,583	08 Dec 2022	Direct
holding	MKTX	Common Stock, par value $0.003 per share						2,000	08 Dec 2022	By Immediate Family Members

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MKTX	Stock Option (right to buy)	Options Exercise	$0	-24,515	-100%	$0.000000^*	0	08 Dec 2022	Common Stock	24,515	$156.85	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The stock options were fully exercisable.