MARKETAXESS HLDGS INC

Ticker: MKTX CUSIP: 57060D108 Class: COM

AMERICAN CENTURY COMPANIES INC's Holding History (CIK: 0000748054)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 15,081 Value ($000) $2,733 Avg Close $169.50 Range $154.80 - $183.58

Q3 2025

Shares 15,483 Value ($000) $2,698 Avg Close $193.45 Range $172.51 - $222.19

Q2 2025

Shares 487,197 Value ($000) $108,811 Avg Close $216.56 Range $190.86 - $229.08

Q1 2025

Shares 222,342 Value ($000) $48,104 Avg Close $206.23 Range $183.82 - $224.26

Q4 2024

Shares 20,221 Value ($000) $4,571 Avg Close $257.54 Range $220.08 - $289.94

Q3 2024

Shares 18,960 Value ($000) $4,858 Avg Close $228.65 Range $187.70 - $258.10

Q2 2024

Shares 10,162 Value ($000) $2,038 Avg Close $200.47 Range $187.45 - $222.81

Q1 2024

Shares 10,144 Value ($000) $2,224 Avg Close $228.96 Range $194.52 - $282.26

Q4 2023

Shares 7,511 Value ($000) $2,200 Avg Close $233.72 Range $195.99 - $288.33

Q3 2023

Shares 7,027 Value ($000) $1,501 Avg Close $233.55 Range $192.90 - $268.22

Q2 2023

Shares 701,442 Value ($000) $183,371 Avg Close $286.65 Range $245.65 - $383.62

Q1 2023

Shares 759,089 Value ($000) $295,724 Avg Close $339.53 Range $266.01 - $381.21

Q4 2022

Shares 932,496 Value ($000) $260,064 Avg Close $246.25 Range $210.55 - $283.35

Q3 2022

Shares 5,320 Value ($000) $1,184 Avg Close $244.83 Range $207.63 - $267.12

Q2 2022

Shares 3,924 Value ($000) $1,005 Avg Close $260.22 Range $237.15 - $332.85

Q1 2022

Shares 3,092 Value ($000) $1,052 Avg Close $344.01 Range $304.48 - $391.34

Q4 2021

Shares 4,229 Value ($000) $1,739 Avg Close $373.74 Range $323.75 - $410.92

Q3 2021

Shares 146,026 Value ($000) $61,432 Avg Close $434.10 Range $386.93 - $472.28

Q2 2021

Shares 150,229 Value ($000) $69,645 Avg Close $449.61 Range $407.56 - $515.46

Q1 2021

Shares 447,950 Value ($000) $223,043 Avg Close $503.06 Range $444.56 - $555.48

Q4 2020

Shares 446,475 Value ($000) $254,741 Avg Close $513.28 Range $445.05 - $571.70

Q3 2020

Shares 512,327 Value ($000) $246,732 Avg Close $465.37 Range $409.02 - $528.32

Q2 2020

Shares 517,998 Value ($000) $259,476 Avg Close $438.02 Range $297.02 - $495.82

Q1 2020

Shares 379,066 Value ($000) $126,066 Avg Close $327.01 Range $258.83 - $365.21

Q4 2019

Shares 360,450 Value ($000) $136,650 Avg Close $343.80 Range $297.75 - $386.27

Q3 2019

Shares 314,514 Value ($000) $103,003 Avg Close $335.01 Range $297.39 - $394.69

Q2 2019

Shares 544,806 Value ($000) $175,112 Avg Close $270.14 Range $225.08 - $320.72

Q1 2019

Shares 686,917 Value ($000) $169,037 Avg Close $211.23 Range $192.59 - $233.31

Q4 2018

Shares 769,769 Value ($000) $162,660 Avg Close $192.62 Range $159.95 - $215.45

Q3 2018

Shares 736,597 Value ($000) $131,475 Avg Close $178.37 Range $164.65 - $196.55

Q2 2018

Shares 742,123 Value ($000) $146,836 Avg Close $192.09 Range $180.81 - $204.01

Q1 2018

Shares 751,413 Value ($000) $163,387 Avg Close $190.22 Range $171.07 - $212.71

Q4 2017

Shares 531,022 Value ($000) $107,134 Avg Close $174.10 Range $158.03 - $190.10

Q3 2017

Shares 536,946 Value ($000) $99,072 Avg Close $176.21 Range $159.36 - $192.97

Q2 2017

Shares 485,309 Value ($000) $97,596 Avg Close $176.15 Range $163.16 - $194.23

Q1 2017

Shares 544,281 Value ($000) $102,047 Avg Close $166.41 Range $135.53 - $184.55

Q4 2016

Shares 497,027 Value ($000) $73,023 Avg Close $145.60 Range $133.06 - $158.12

Q3 2016

Shares 491,330 Value ($000) $81,359 Avg Close $148.56 Range $129.96 - $163.14

Q2 2016

Shares 486,200 Value ($000) $70,693 Avg Close $121.40 Range $107.26 - $133.06

Q1 2016

Shares 513,472 Value ($000) $64,097 Avg Close $104.04 Range $89.17 - $116.19

Q4 2015

Shares 443,516 Value ($000) $49,492 Avg Close $92.99 Range $78.27 - $105.44

Q3 2015

Shares 113,000 Value ($000) $10,495 Avg Close $87.71 Range $79.52 - $94.87

Q2 2015

Shares 87,218 Value ($000) $8,091 Avg Close $79.87 Range $74.17 - $89.60

Q1 2015

Shares 53,583 Value ($000) $4,442 Avg Close $71.51 Range $59.68 - $80.40

Q4 2014

Shares 53,792 Value ($000) $3,857 Avg Close $59.29 Range $54.38 - $66.53

Q3 2014

Shares 64,002 Value ($000) $3,959 Avg Close $50.63 Range $42.39 - $56.56

Q2 2014

Shares 63,661 Value ($000) $3,442 Avg Close $48.96 Range $44.53 - $53.88

Q1 2014

Shares 65,706 Value ($000) $3,891 Avg Close $55.22 Range $51.55 - $60.27

Q4 2013

Shares 71,452 Value ($000) $4,778 Avg Close $58.63 Range $53.33 - $63.89

Q3 2013

Shares 86,972 Value ($000) $5,222 Avg Close $47.53 Range $41.58 - $55.43

Q2 2013

Shares 58,632 Value ($000) $2,741 Avg Close $38.12 Range $32.31 - $42.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,081	$2,733	$169.50	$154.80 - $183.58
Q3 2025	15,483	$2,698	$193.45	$172.51 - $222.19
Q2 2025	487,197	$108,811	$216.56	$190.86 - $229.08
Q1 2025	222,342	$48,104	$206.23	$183.82 - $224.26
Q4 2024	20,221	$4,571	$257.54	$220.08 - $289.94
Q3 2024	18,960	$4,858	$228.65	$187.70 - $258.10
Q2 2024	10,162	$2,038	$200.47	$187.45 - $222.81
Q1 2024	10,144	$2,224	$228.96	$194.52 - $282.26
Q4 2023	7,511	$2,200	$233.72	$195.99 - $288.33
Q3 2023	7,027	$1,501	$233.55	$192.90 - $268.22
Q2 2023	701,442	$183,371	$286.65	$245.65 - $383.62
Q1 2023	759,089	$295,724	$339.53	$266.01 - $381.21
Q4 2022	932,496	$260,064	$246.25	$210.55 - $283.35
Q3 2022	5,320	$1,184	$244.83	$207.63 - $267.12
Q2 2022	3,924	$1,005	$260.22	$237.15 - $332.85
Q1 2022	3,092	$1,052	$344.01	$304.48 - $391.34
Q4 2021	4,229	$1,739	$373.74	$323.75 - $410.92
Q3 2021	146,026	$61,432	$434.10	$386.93 - $472.28
Q2 2021	150,229	$69,645	$449.61	$407.56 - $515.46
Q1 2021	447,950	$223,043	$503.06	$444.56 - $555.48
Q4 2020	446,475	$254,741	$513.28	$445.05 - $571.70
Q3 2020	512,327	$246,732	$465.37	$409.02 - $528.32
Q2 2020	517,998	$259,476	$438.02	$297.02 - $495.82
Q1 2020	379,066	$126,066	$327.01	$258.83 - $365.21
Q4 2019	360,450	$136,650	$343.80	$297.75 - $386.27
Q3 2019	314,514	$103,003	$335.01	$297.39 - $394.69
Q2 2019	544,806	$175,112	$270.14	$225.08 - $320.72
Q1 2019	686,917	$169,037	$211.23	$192.59 - $233.31
Q4 2018	769,769	$162,660	$192.62	$159.95 - $215.45
Q3 2018	736,597	$131,475	$178.37	$164.65 - $196.55
Q2 2018	742,123	$146,836	$192.09	$180.81 - $204.01
Q1 2018	751,413	$163,387	$190.22	$171.07 - $212.71
Q4 2017	531,022	$107,134	$174.10	$158.03 - $190.10
Q3 2017	536,946	$99,072	$176.21	$159.36 - $192.97
Q2 2017	485,309	$97,596	$176.15	$163.16 - $194.23
Q1 2017	544,281	$102,047	$166.41	$135.53 - $184.55
Q4 2016	497,027	$73,023	$145.60	$133.06 - $158.12
Q3 2016	491,330	$81,359	$148.56	$129.96 - $163.14
Q2 2016	486,200	$70,693	$121.40	$107.26 - $133.06
Q1 2016	513,472	$64,097	$104.04	$89.17 - $116.19
Q4 2015	443,516	$49,492	$92.99	$78.27 - $105.44
Q3 2015	113,000	$10,495	$87.71	$79.52 - $94.87
Q2 2015	87,218	$8,091	$79.87	$74.17 - $89.60
Q1 2015	53,583	$4,442	$71.51	$59.68 - $80.40
Q4 2014	53,792	$3,857	$59.29	$54.38 - $66.53
Q3 2014	64,002	$3,959	$50.63	$42.39 - $56.56
Q2 2014	63,661	$3,442	$48.96	$44.53 - $53.88
Q1 2014	65,706	$3,891	$55.22	$51.55 - $60.27
Q4 2013	71,452	$4,778	$58.63	$53.33 - $63.89
Q3 2013	86,972	$5,222	$47.53	$41.58 - $55.43
Q2 2013	58,632	$2,741	$38.12	$32.31 - $42.94