David A. Siegel Marketaxess Holdings Inc Transaction History

Two Sigma Advisers, LP

$47 Billion
Q3 2025

A detailed history of David A. Siegel (Two Sigma Advisers, LP) transactions in Marketaxess Holdings Inc stock. As of the latest transaction made, Two Sigma Advisers, LP holds 174,200 shares of MKTX stock, worth $30.5 Million. This represents 0.06% of its overall portfolio holdings.

Number of Shares

174,200

Previous 243,400 28.43%

Holding current value

$30.5 Million

Previous $54.4 Million 44.16%

% of portfolio

0.06%

Previous 0.12%

24 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	SELL	$174.25 - $223.11 $12.1 Million - $15.4 Million	-69,200 Reduced 28.43%	174,200 $30.4 Million
Q2 2025 Aug 14, 2025	SELL	$203.19 - $231.09 $17.5 Million - $19.9 Million	-86,000 Reduced 26.11%	243,400 $54.4 Million
Q1 2025 May 15, 2025	BUY	$189.81 - $226.47 $18.3 Million - $21.8 Million	96,300 Added 41.31%	329,400 $71.3 Million
Q4 2024 Feb 14, 2025	BUY	$225.3 - $293.66 $10.1 Million - $13.1 Million	44,700 Added 23.73%	233,100 $52.7 Million
Q3 2024 Nov 14, 2024	BUY	$193.39 - $261.08 $15.3 Million - $20.7 Million	79,300 Added 72.69%	188,400 $48.3 Million

Q2 2024 Aug 14, 2024	BUY	$194.05 - $226.5 $19.5 Million - $22.7 Million	100,400 Added 1154.02%	109,100 $21.9 Million
Q1 2024 May 15, 2024	SELL	$207.77 - $286.45 $3.12 Million - $4.3 Million	-15,000 Reduced 63.29%	8,700 $1.91 Million
Q4 2023 Feb 14, 2024	SELL	$204.76 - $296.42 $12.3 Million - $17.8 Million	-60,000 Reduced 71.68%	23,700 $6.94 Million
Q3 2023 Nov 14, 2023	BUY	$201.78 - $274.38 $15.4 Million - $20.9 Million	76,300 Added 1031.08%	83,700 $17.9 Million
Q2 2023 Aug 14, 2023	BUY	$257.89 - $392.29 $1.91 Million - $2.9 Million	7,400 New	7,400 $1.93 Million
Q4 2022 Feb 14, 2023	SELL	$228.87 - $289.44 $14.4 Million - $18.2 Million	-62,800 Reduced 41.64%	88,000 $24.5 Million
Q3 2022 Nov 14, 2022	BUY	$219.06 - $277.52 $21 Million - $26.6 Million	96,000 Added 175.18%	150,800 $33.6 Million
Q2 2022 Aug 15, 2022	BUY	$250.18 - $345.51 $13.4 Million - $18.5 Million	53,400 Added 3814.29%	54,800 $14 Million
Q1 2022 May 16, 2022	BUY	$330.12 - $396.83 $462,168 - $555,562	1,400 New	1,400 $476,000
Q2 2021 Aug 16, 2021	SELL	$432.89 - $539.68 $5.67 Million - $7.07 Million	-13,100 Closed	0 $0
Q1 2021 May 17, 2021	SELL	$484.93 - $580.11 $1.95 Million - $2.34 Million	-4,029 Reduced 23.52%	13,100 $6.52 Million
Q4 2020 Feb 16, 2021	SELL	$482.52 - $590.32 $10.5 Million - $12.9 Million	-21,800 Reduced 56.0%	17,129 $9.77 Million
Q3 2020 Nov 16, 2020	SELL	$438.66 - $548.61 $1.26 Million - $1.58 Million	-2,871 Reduced 6.87%	38,929 $18.7 Million
Q2 2020 Aug 14, 2020	BUY	$333.99 - $521.11 $100,197 - $156,333	300 Added 0.72%	41,800 $20.9 Million
Q1 2020 May 15, 2020	BUY	$281.31 - $380.25 $1.01 Million - $1.37 Million	3,600 Added 9.5%	41,500 $13.8 Million
Q4 2019 Feb 14, 2020	BUY	$318.73 - $406.43 $4.78 Million - $6.1 Million	15,000 Added 65.5%	37,900 $14.4 Million
Q3 2019 Nov 14, 2019	BUY	$322.58 - $419.4 $7.39 Million - $9.6 Million	22,900 New	22,900 $7.5 Million
Q4 2017 Feb 14, 2018	SELL	$173.05 - $202.91 $610,693 - $716,069	-3,529 Closed	0 $0
Q3 2017 Nov 14, 2017	BUY	$176.2 - $206.01 $621,809 - $727,009	3,529	3,529 $651,000

Others Institutions Holding MKTX

# of Institutions

523

Shares Held

39M

Call Options Held

1.1M

Put Options Held

126K

View Full List

About MARKETAXESS HOLDINGS INC

Ticker MKTX
Exchange NASDAQ
Sector Financial Services
Industry Capital Markets
Shares Outstandng 37,636,800
Market Cap $6.59B
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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