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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, Q1 2025

Institutional positions in Marketaxess Holdings Inc as of Mar 31, 2025. 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
511
−1 vs. Q4 2024
Shares held
37.2M
−317.9K (−0.8%) vs. Q4 2024
Total value
$8.05B
−$431.1M (−5.1%) vs. Q4 2024
New holders
80
200 more added
Sold out
81
179 more reduced

7 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 511 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 heldQ1 2025: $8.05B
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, Q1 2025

Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q4 2024.

Institutions holding MKTX in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Invesco Ltd.904,203$195.6M0.04%−140,157−13.4%Reduced
Geode Capital Management, LLC1,134,750$245.2M0.02%+21,442+1.9%Added
Primecap Management Co1,361,512$294.6M0.24%−7,590−0.6%Reduced
State Street Corp1,465,406$317.0M0.01%−164,105−10.1%Reduced
Guardcap Asset Management Ltd1,523,006$329.5M6.38%−240,202−13.6%Reduced
Van Eck Associates Corp2,005,916$434.0M0.56%+5,180+0.3%Added
FMR LLC2,189,916$473.8M0.03%−110,620−4.8%Reduced
T. Rowe Price Investment Management, Inc.2,323,015$502.6M0.33%+24,606+1.1%Added
BlackRock, Inc.2,605,396$563.7M0.01%−558,489−17.7%Reduced
Vanguard Group Inc4,407,136$953.5M0.02%−27,810−0.6%Reduced
Transamerica Financial Advisors, Inc.1––00.0%Unchanged
Proequities, Inc.0$00.00%−175−100.0%Sold out
Artisan Partners Limited Partnership0$00.00%−246,297−100.0%Sold out
Stephens Investment Management Group LLC0$00.00%−128,937−100.0%Sold out
Mitsubishi UFJ Trust & Banking Corp0$00.00%−66,569−100.0%Sold out
2Xideas AG0$00.00%−48,974−100.0%Sold out
Azora Capital LP0$00.00%−43,756−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−31,007−100.0%Sold out
Hudson Bay Capital Management LP0$00.00%−29,897−100.0%Sold out
Andra AP-fonden0$00.00%−26,200−100.0%Sold out
Mn Services Vermogensbeheer B.V.0$00.00%−14,600−100.0%Sold out
AXA S.A.0$00.00%−14,514−100.0%Sold out
Quantbot Technologies LP0$00.00%−14,199−100.0%Sold out
Covea Finance0$00.00%−13,700−100.0%Sold out
Taika Capital, LP0$00.00%−11,894−100.0%Sold out
Cumberland Partners Ltd0$00.00%−11,000−100.0%Sold out
Crestline Management, LP0$00.00%−8,851−100.0%Sold out
Forsta Ap-Fonden0$00.00%−7,800−100.0%Sold out
Centiva Capital, LP0$00.00%−7,569−100.0%Sold out
Prudential PLC0$00.00%−7,567−100.0%Sold out
TCG Advisory Services, LLC0$00.00%−7,503−100.0%Sold out
British Columbia Investment Management Corp0$00.00%−7,233−100.0%Sold out
DnB Asset Management AS0$00.00%−6,393−100.0%Sold out
IFM Investors Pty Ltd0$00.00%−6,368−100.0%Sold out
Castle Hook Partners LP0$00.00%−6,330−100.0%Sold out
Vinva Investment Management Ltd0$00.00%−5,958−100.0%Sold out
Van Berkom & Associates Inc.0$00.00%−4,947−100.0%Sold out
First Hawaiian Bank0$00.00%−4,815−100.0%Sold out
Nissay Asset Management Corp0$00.00%−4,700−100.0%Sold out
Access Financial Services, Inc.0$00.00%−4,597−100.0%Sold out
Mediolanum International Funds Ltd0$00.00%−4,369−100.0%Sold out
Candriam Luxembourg S.C.A.0$00.00%−4,296−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−3,933−100.0%Sold out
Sumitomo Mitsui DS Asset Management Company, Ltd0$00.00%−3,637−100.0%Sold out
Quantitative Investment Management, LLC0$00.00%−3,625−100.0%Sold out
CWM Advisors, LLC0$00.00%−3,350−100.0%Sold out
Freestone Grove Partners LP0$00.00%−3,087−100.0%Sold out
Gulf International Bank (UK) Ltd0$00.00%−2,943−100.0%Sold out
Kentucky Retirement Systems0$00.00%−2,594−100.0%Sold out
Metis Global Partners, LLC0$00.00%−2,270−100.0%Sold out
Bryce Point Capital, LLC0$00.00%−1,919−100.0%Sold out
AdvisorShares Investments LLC0$00.00%−1,900−100.0%Sold out
Stevens Capital Management LP0$00.00%−1,630−100.0%Sold out
E. Ohman J:or Asset Management AB0$00.00%−1,600−100.0%Sold out
Tokio Marine Asset Management Co Ltd0$00.00%−1,396−100.0%Sold out
Vident Advisory, LLC0$00.00%−1,371−100.0%Sold out
Asahi Life Asset Management Co., Ltd.0$00.00%−1,290−100.0%Sold out
WMS Partners, LLC0$00.00%−1,225−100.0%Sold out
Ostrum Asset Management0$00.00%−1,188−100.0%Sold out
Versor Investments LP0$00.00%−1,102−100.0%Sold out
Allstate Corp0$00.00%−1,081−100.0%Sold out
We Are One Seven, LLC0$00.00%−1,048−100.0%Sold out
Investment Management Corp of Ontario0$00.00%−1,003−100.0%Sold out
Marex Group plc0$00.00%−994−100.0%Sold out
QSV Equity Investors LLC0$00.00%−897−100.0%Sold out
Stephens Inc0$00.00%−889−100.0%Sold out
Vestcor Inc0$00.00%−870−100.0%Sold out
BI Asset Management Fondsmaeglerselskab A/S0$00.00%−545−100.0%Sold out
Acadian Asset Management LLC0$00.00%−425−100.0%Sold out
Canada Post Corp Registered Pension Plan0$00.00%−360−100.0%Sold out
Livforsakringsbolaget Skandia, Omsesidigt0$00.00%−236−100.0%Sold out
R Squared Ltd0$00.00%−210−100.0%Sold out
Militia Capital Partners, LP0$00.00%−200−100.0%Sold out
Leonteq Securities AG0$00.00%−193−100.0%Sold out
Penserra Capital Management LLC0$00.00%−96−100.0%Sold out
Rothschild Investment LLC0$00.00%−92−100.0%Sold out
LGT Financial Advisors LLC0$00.00%−21−100.0%Sold out
Tucker Asset Management LLC0$00.00%−19−100.0%Sold out
Altshuler Shaham Ltd0$00.00%−17−100.0%Sold out
Grove Bank & Trust0$00.00%−15−100.0%Sold out
Ranger Investment Management, L.P.0$00.00%−12−100.0%Sold out
Raleigh Capital Management Inc.0$00.00%−12−100.0%Sold out
Dunhill Financial, LLC0$00.00%−11−100.0%Sold out
Venturi Wealth Management, LLC0$00.00%−10−100.0%Sold out
Eagle Bay Advisors LLC0$00.00%−8−100.0%Sold out
Mowery & Schoenfeld Wealth Management, LLC0$00.00%−6−100.0%Sold out
New Wave Wealth Advisors LLC0$00.00%−6−100.0%Sold out
TFC Financial Management0$00.00%−5−100.0%Sold out
Fortitude Family Office, LLC0$00.00%−2−100.0%Sold out
Nelson, Van Denburg & Campbell Wealth Management Group, LLC0$00.00%−1−100.0%Sold out
Sound Income Strategies, LLC0$00.00%0Sold out
Migdal Insurance & Financial Holdings Ltd.0$00.00%−1−100.0%Sold out
Nuveen Asset Management, LLC––––Not filed
Caxton Associates LP––––Not filed
Swedbank AB––––Not filed
Sugarloaf Wealth Management, LLC––––Not filed
Global Retirement Partners, LLC––––Not filed
Cassady Schiller Wealth Management, LLC––––Not filed
Zions Bancorporation, N.A.––––Not filed