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Marketaxess Holdings Inc

MKTX
Exchange
Nasdaq
Industry
Security Brokers, Dealers & Flotation Companies
SEC CIK
0001278021

In the last 90 days, Marketaxess Holdings Inc insiders filed 0 open-market purchases and 4 sales; 397 institutions reported holding it in 13F filings for Q2 2026, worth $4.44B in total; no superinvestor holds it.

13F holders, Q4 2023

Institutional positions in Marketaxess Holdings Inc as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
506
+26 vs. Q3 2023
Shares held
37.2M
−133.6K (−0.4%) vs. Q3 2023
Total value
$10.9B
+$2.89B (+36.2%) vs. Q3 2023
New holders
94
179 more added
Sold out
68
171 more reduced

5 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MKTX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 506 institutions
Q1 2021: 589 institutionsQ2 2021: 551 institutionsQ3 2021: 508 institutionsQ4 2021: 505 institutionsQ1 2022: 506 institutionsQ2 2022: 505 institutionsQ3 2022: 479 institutionsQ4 2022: 500 institutionsQ1 2023: 540 institutionsQ2 2023: 514 institutionsQ3 2023: 485 institutionsQ4 2023: 506 institutionsQ1 2024: 463 institutionsQ2 2024: 468 institutionsQ3 2024: 511 institutionsQ4 2024: 519 institutionsQ1 2025: 511 institutionsQ2 2025: 531 institutionsQ3 2025: 452 institutionsQ4 2025: 487 institutionsQ1 2026: 452 institutionsQ2 2026: 397 institutions
Value heldQ4 2023: $10.9B
Q1 2021: $17.7BQ2 2021: $16.8BQ3 2021: $15.3BQ4 2021: $15.0BQ1 2022: $12.4BQ2 2022: $9.28BQ3 2022: $8.19BQ4 2022: $10.3BQ1 2023: $14.5BQ2 2023: $9.88BQ3 2023: $7.98BQ4 2023: $10.9BQ1 2024: $8.14BQ2 2024: $7.48BQ3 2024: $9.42BQ4 2024: $8.51BQ1 2025: $8.05BQ2 2025: $8.24BQ3 2025: $6.21BQ4 2025: $6.62BQ1 2026: $6.31BQ2 2026: $4.44B
Institutions holding MKTX and their total value by quarter
QuarterHoldersValue
Q2 2026397$4.44B
Q1 2026452$6.31B
Q4 2025487$6.62B
Q3 2025452$6.21B
Q2 2025531$8.24B
Q1 2025511$8.05B
Q4 2024519$8.51B
Q3 2024511$9.42B
Q2 2024468$7.48B
Q1 2024463$8.14B
Q4 2023506$10.9B
Q3 2023485$7.98B
Q2 2023514$9.88B
Q1 2023540$14.5B
Q4 2022500$10.3B
Q3 2022479$8.19B
Q2 2022505$9.28B
Q1 2022506$12.4B
Q4 2021505$15.0B
Q3 2021508$15.3B
Q2 2021551$16.8B
Q1 2021589$17.7B

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q3 2023.

Institutions holding MKTX in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Royal Bank of Canada1,770,203$518.4M0.13%+64,245+3.8%Added
Guardcap Asset Management Ltd1,861,077$545.0M7.02%−34,122−1.8%Reduced
BlackRock Inc.3,178,566$930.8M0.02%−415,939−11.6%Reduced
Vanguard Group Inc4,526,422$1.33B0.03%+34,197+0.8%Added
Polen Capital Management LLC4,461––+4,461New
Transamerica Financial Advisors, Inc.1––00.0%Unchanged
Qube Research & Technologies Ltd0$00.00%−239,601−100.0%Sold out
Renaissance Technologies LLC0$00.00%−121,110−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−90,706−100.0%Sold out
Jupiter Asset Management Ltd0$00.00%−80,748−100.0%Sold out
Twinbeech Capital LP0$00.00%−75,119−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−64,801−100.0%Sold out
Worldquant Millennium Advisors LLC0$00.00%−51,837−100.0%Sold out
Walleye Capital LLC0$00.00%−49,509−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−46,925−100.0%Sold out
Prana Capital Management, LP0$00.00%−44,630−100.0%Sold out
M&G Investment Management Ltd0$00.00%−29,303−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−13,802−100.0%Sold out
FORA Capital, LLC0$00.00%−13,240−100.0%Sold out
Algert Global LLC0$00.00%−7,601−100.0%Sold out
IFM Investors Pty Ltd0$00.00%−6,901−100.0%Sold out
Seven Eight Capital, LP0$00.00%−6,604−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−5,877−100.0%Sold out
Harel Insurance Investments & Financial Services Ltd.0$00.00%−5,380−100.0%Sold out
Aigen Investment Management, LP0$00.00%−4,917−100.0%Sold out
Sherbrooke Park Advisers LLC0$00.00%−4,573−100.0%Sold out
North Reef Capital Management LP0$00.00%−4,000−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−3,856−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−2,783−100.0%Sold out
Banque Cantonale Vaudoise0$00.00%−2,728−100.0%Sold out
Banque Pictet & Cie SA0$00.00%−2,666−100.0%Sold out
Heartland Bank & Trust Co0$00.00%−2,438−100.0%Sold out
Cognios Beta Neutral Large Cap Fund, LP0$00.00%−2,403−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−2,375−100.0%Sold out
Centiva Capital, LP0$00.00%−2,305−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−2,176−100.0%Sold out
First Hawaiian Bank0$00.00%−2,125−100.0%Sold out
Point72 Middle East FZE0$00.00%−2,079−100.0%Sold out
Natixis0$00.00%−2,015−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−1,965−100.0%Sold out
Credit Capital Investments LLC0$00.00%−1,793−100.0%Sold out
Impax Asset Management Group plc0$00.00%−1,656−100.0%Sold out
Nichols & Pratt Advisers LLP0$00.00%−1,609−100.0%Sold out
Echo Street Capital Management LLC0$00.00%−1,587−100.0%Sold out
Walleye Trading LLC0$00.00%−1,549−100.0%Sold out
Wolverine Trading, LLC0$00.00%−1,462−100.0%Sold out
Lloyd Advisory Services, LLC.0$00.00%−1,462−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−1,367−100.0%Sold out
Capstone Investment Advisors, LLC0$00.00%−1,320−100.0%Sold out
Meiji Yasuda Asset Management Co Ltd.0$00.00%−1,078−100.0%Sold out
SYSTM Wealth Solutions LLC0$00.00%−1,062−100.0%Sold out
National Wealth Management Group, LLC0$00.00%−1,031−100.0%Sold out
Blossom Wealth Management0$00.00%−988−100.0%Sold out
Achmea Investment Management B.V.0$00.00%−963−100.0%Sold out
Neo Ivy Capital Management0$00.00%−880−100.0%Sold out
Emerald Advisers, LLC0$00.00%−768−100.0%Sold out
Quantbot Technologies LP0$00.00%−739−100.0%Sold out
Kapitalo Investimentos Ltda0$00.00%−385−100.0%Sold out
JTC Employer Solutions Trusteee Ltd0$00.00%−266−100.0%Sold out
Aquatic Capital Management LLC0$00.00%−300−100.0%Sold out
Riverview Trust Co0$00.00%−229−100.0%Sold out
Clear Street Markets LLC0$00.00%−200−100.0%Sold out
Compass Wealth Management LLC0$00.00%−146−100.0%Sold out
Gladius Capital Management LP0$00.00%−134−100.0%Sold out
Baker Avenue Asset Management, LP0$00.00%−101−100.0%Sold out
TFC Financial Management0$00.00%−90−100.0%Sold out
RVW Wealth, LLC0$00.00%−56−100.0%Sold out
Cary Street Partner Investment Advisory LLC0$00.00%−47−100.0%Sold out
Flaharty Asset Management, LLC0$00.00%−28−100.0%Sold out
Earnest Partners LLC0$00.00%−18−100.0%Sold out
Front Row Advisors LLC0$00.00%−14−100.0%Sold out
West Tower Group, LLC0$00.00%−14−100.0%Sold out
Milestone Investment Advisors LLC0$00.00%−5−100.0%Sold out
Migdal Insurance & Financial Holdings Ltd.0$00.00%−1−100.0%Sold out
Quantamental Technologies LLC––––Not filed
First Republic Investment Management, Inc.––––Not filed
Advisor Partners II, LLC––––Not filed
Sutton Wealth Advisors Inc.––––Not filed
Steward Financial Group LLC––––Not filed