Ken Griffin Marketaxess Holdings Inc Transaction History

Citadel Advisors LLC

$509 Billion
Q1 2025

A detailed history of Ken Griffin (Citadel Advisors LLC) transactions in Marketaxess Holdings Inc stock. As of the latest transaction made, Citadel Advisors LLC holds 21,200 shares of MKTX stock, worth $4.47 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

21,200

Previous 37,500 43.47%

Holding current value

$4.47 Million

Previous $8.48 Million 45.89%

% of portfolio

0.0%

Previous 0.0%

31 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q1 2025 May 15, 2025	BUY	$189.81 - $226.47 $70.9 Million - $84.6 Million	373,757 Added 371.57%	474,345 $103 Million
Q4 2024 Feb 14, 2025	SELL	$225.3 - $293.66 $26.7 Million - $34.8 Million	-118,537 Reduced 54.1%	100,588 $22.7 Million
Q3 2024 Nov 14, 2024	BUY	$193.39 - $261.08 $5.47 Million - $7.38 Million	28,272 Added 14.81%	219,125 $56.1 Million
Q2 2024 Aug 14, 2024	SELL	$194.05 - $226.5 $21.1 Million - $24.6 Million	-108,605 Reduced 36.27%	190,853 $38.3 Million
Q1 2024 May 15, 2024	SELL	$207.77 - $286.45 $9.63 Million - $13.3 Million	-46,345 Reduced 13.4%	299,458 $65.7 Million
Q4 2023 Feb 14, 2024	BUY	$204.76 - $296.42 $49.5 Million - $71.7 Million	241,802 Added 232.5%	345,803 $101 Million
Q3 2023 Nov 14, 2023	SELL	$201.78 - $274.38 $8.61 Million - $11.7 Million	-42,660 Reduced 29.09%	104,001 $22.2 Million
Q2 2023 Aug 14, 2023	BUY	$257.89 - $392.29 $28.5 Million - $43.3 Million	110,488 Added 305.44%	146,661 $38.3 Million
Q1 2023 May 15, 2023	SELL	$284.87 - $391.29 $5.01 Million - $6.88 Million	-17,581 Reduced 32.71%	36,173 $14.2 Million
Q4 2022 Feb 14, 2023	SELL	$228.87 - $289.44 $58.8 Million - $74.4 Million	-257,127 Reduced 82.71%	53,754 $15 Million
Q3 2022 Nov 14, 2022	SELL	$219.06 - $277.52 $38.1 Million - $48.3 Million	-173,934 Reduced 35.88%	310,881 $69.2 Million
Q2 2022 Aug 15, 2022	BUY	$250.18 - $345.51 $49.9 Million - $68.9 Million	199,437 Added 69.89%	484,815 $124 Million
Q1 2022 May 16, 2022	BUY	$330.12 - $396.83 $81.1 Million - $97.5 Million	245,574 Added 616.96%	285,378 $97.1 Million
Q4 2021 Feb 14, 2022	SELL	$343.73 - $431.53 $4.01 Million - $5.03 Million	-11,659 Reduced 22.66%	39,804 $16.4 Million
Q3 2021 Nov 15, 2021	BUY	$417.22 - $492.13 $6.8 Million - $8.02 Million	16,291 Added 46.32%	51,463 $21.7 Million
Q2 2021 Aug 16, 2021	SELL	$432.89 - $539.68 $5.33 Million - $6.65 Million	-12,313 Reduced 25.93%	35,172 $16.3 Million
Q1 2021 May 17, 2021	SELL	$484.93 - $580.11 $23 Million - $27.5 Million	-47,488 Reduced 50.0%	47,485 $23.6 Million
Q4 2020 Feb 16, 2021	SELL	$482.52 - $590.32 $29.5 Million - $36.1 Million	-61,206 Reduced 39.19%	94,973 $54.2 Million
Q3 2020 Nov 16, 2020	BUY	$438.66 - $548.61 $20 Million - $25 Million	45,630 Added 41.28%	156,179 $75.2 Million
Q2 2020 Aug 14, 2020	SELL	$333.99 - $521.11 $34 Million - $53.1 Million	-101,948 Reduced 47.98%	110,549 $55.4 Million
Q1 2020 May 15, 2020	BUY	$281.31 - $380.25 $52.1 Million - $70.5 Million	185,362 Added 683.11%	212,497 $70.7 Million
Q4 2019 Feb 14, 2020	SELL	$318.73 - $406.43 $17.4 Million - $22.2 Million	-54,733 Reduced 66.86%	27,135 $10.3 Million
Q3 2019 Nov 14, 2019	BUY	$322.58 - $419.4 $2.13 Million - $2.77 Million	6,612 Added 8.79%	81,868 $26.8 Million
Q2 2019 Aug 14, 2019	BUY	$246.68 - $339.9 $17.6 Million - $24.3 Million	71,420 Added 1861.84%	75,256 $24.2 Million
Q1 2019 May 15, 2019	SELL	$207.58 - $246.52 $12.3 Million - $14.6 Million	-59,364 Reduced 93.93%	3,836 $0
Q4 2018 Feb 14, 2019	BUY	$173.89 - $229.34 $10.7 Million - $14.2 Million	61,754 Added 4270.68%	63,200 $13.4 Million
Q3 2018 Nov 13, 2018	SELL	$178.17 - $210.51 $323,378 - $382,075	-1,815 Reduced 55.66%	1,446 $0
Q2 2018 Aug 10, 2018	SELL	$197.86 - $218.14 $712,493 - $785,522	-3,601 Reduced 52.48%	3,261 $0
Q1 2018 May 11, 2018	BUY	$189.02 - $224.59 $576,132 - $684,550	3,048 Added 79.92%	6,862 $1.49 Million
Q4 2017 Feb 09, 2018	SELL	$173.05 - $202.91 $14.9 Million - $17.5 Million	-86,129 Reduced 95.76%	3,814 $769,000
Q3 2017 Nov 09, 2017	BUY	$176.2 - $206.01 $15.8 Million - $18.5 Million	89,943	89,943 $16.6 Million

Others Institutions Holding MKTX

# of Institutions

574

Shares Held

35.1M

Call Options Held

165K

Put Options Held

78.4K

View Full List

About MARKETAXESS HOLDINGS INC

Ticker MKTX
Exchange NASDAQ
Sector Financial Services
Industry Capital Markets
Shares Outstandng 37,636,800
Market Cap $7.93B
Description
MarketAxess Holdings Inc., together with its subsidiaries, operates an electronic trading platform for institutional investor and broker-dealer companies worldwide. It offers the access to liquidity in the U.S. investment-grade bonds, U.S. high-yield bonds, and U.S. Treasuries, as well as municipal bonds, emerging market debts, Eurobonds, and ot...

More about MKTX

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