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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, Q3 2021

Institutional positions in Marketaxess Holdings Inc as of Sep 30, 2021. 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
508
−37 vs. Q2 2021
Shares held
36.5M
+431.1K (+1.2%) vs. Q2 2021
Total value
$15.3B
−$1.35B (−8.1%) vs. Q2 2021
New holders
30
195 more added
Sold out
67
197 more reduced

6 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2021: 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 holdersQ3 2021: 508 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 heldQ3 2021: $15.3B
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, Q3 2021

Shares, value and share of portfolio for each institution holding Marketaxess Holdings Inc; share changes are against Q2 2021.

Institutions holding MKTX in Q3 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc4,136,237$1.74B0.04%+38,779+0.9%Added
Price T Rowe Associates Inc3,660,311$1.54B0.15%+71,583+2.0%Added
BlackRock Inc.3,509,477$1.48B0.04%−35,424−1.0%Reduced
State Street Corp1,817,471$764.6M0.04%+30,882+1.7%Added
Baillie Gifford & Co1,754,514$738.1M0.39%−20,117−1.1%Reduced
Ownership Capital B.V.1,237,192$520.5M5.90%−70,486−5.4%Reduced
Wells Fargo & Company1,215,901$511.5M0.12%−84,729−6.5%Reduced
Guardcap Asset Management Ltd1,183,401$497.8M6.86%+666,218+128.8%Added
Royal Bank of Canada1,099,475$462.5M0.13%+75,160+7.3%Added
JPMorgan Chase & Co836,673$352.0M0.05%−188,305−18.4%Reduced
Wellington Management Group LLP817,436$343.9M0.06%+34,528+4.4%Added
Geode Capital Management, LLC790,508$331.8M0.04%+20,535+2.7%Added
Kayne Anderson Rudnick Investment Management LLC698,874$294.0M0.71%+2,032+0.3%Added
Macquarie Group Ltd660,809$278.0M0.24%+54,630+9.0%Added
Invesco Ltd.465,607$195.9M0.05%−11,064−2.3%Reduced
Primecap Management Co449,160$189.0M0.13%+23,100+5.4%Added
Franklin Resources Inc411,358$173.1M0.07%−31,224−7.1%Reduced
Northern Trust Corp405,659$170.7M0.03%+3,766+0.9%Added
Neuberger Berman Group LLC403,795$168.6M0.15%−43,210−9.7%Reduced
Allianz Asset Management GmbH394,480$166.0M0.14%+369,685+1,491.0%Added
Alliancebernstein L.P.373,994$157.3M0.06%+10,936+3.0%Added
Norges Bank344,846$145.1M0.03%+1020.0%Added
Bamco Inc309,095$130.0M0.30%−1150.0%Reduced
APG Asset Management N.V.330,752$120.1M0.21%+6,000+1.8%Added
California Public Employees Retirement System285,043$119.9M0.09%+3,690+1.3%Added
Legal & General Group Plc278,533$117.2M0.04%+2,752+1.0%Added
Eagle Asset Management Inc269,448$113.4M0.51%+3,864+1.5%Added
Bank of New York Mellon Corp268,570$113.0M0.02%−108,908−28.9%Reduced
Bank Julius Baer & Co. Ltd, Zurich250,889$105.5M0.66%+16,717+7.1%Added
Charles Schwab Investment Management Inc191,721$80.7M0.03%+5,259+2.8%Added
Renaissance Technologies LLC185,473$78.0M0.10%−118,670−39.0%Reduced
UBS Asset Management Americas Inc181,731$76.5M0.03%−11,648−6.0%Reduced
Dimensional Fund Advisors LP179,596$75.6M0.02%−857−0.5%Reduced
Van Berkom & Associates Inc.171,503$72.2M2.19%−14,885−8.0%Reduced
Nuveen Asset Management, LLC166,778$70.2M0.02%−85,308−33.8%Reduced
Voya Investment Management LLC165,138$69.5M0.14%−1,671−1.0%Reduced
Stephens Investment Management Group LLC163,916$69.0M0.94%−235−0.1%Reduced
Ardevora Asset Management LLP159,805$67.2M0.85%+2,500+1.6%Added
Kames Capital plc150,905$63.4M0.90%−290.0%Reduced
American Century Companies Inc146,026$61.4M0.04%−4,203−2.8%Reduced
Keybank National Association142,528$60.0M0.26%−4,015−2.7%Reduced
Marathon Asset Mgmt Ltd141,801$59.7M0.72%+141,801New
Manufacturers Life Insurance Company, The140,375$59.1M0.05%−20,444−12.7%Reduced
Goldman Sachs Group Inc139,655$58.8M0.02%+36,442+35.3%Added
Source Financial Advisors LLC130,205$54.8M14.22%+10.0%Added
Bank of America Corp127,279$53.5M0.01%+507+0.4%Added
TD Asset Management Inc115,892$48.8M0.05%+1,706+1.5%Added
Sumitomo Mitsui Trust Holdings, Inc.115,873$48.7M0.03%−6,433−5.3%Reduced
FMR LLC111,685$47.0M0.00%−42,856−27.7%Reduced
Deutsche Bank AG111,409$46.9M0.02%−25,467−18.6%Reduced
Morgan Stanley108,145$45.5M0.01%−39,706−26.9%Reduced
Bahl & Gaynor Inc101,581$42.7M0.26%+240.0%Added
Bank of Montreal98,147$41.7M0.02%+13,480+15.9%Added
NFJ Investment Group, LLC97,725$41.1M0.81%+21,414+28.1%Added
Mitsubishi UFJ Trust & Banking Corp94,059$39.6M0.09%−1,287−1.3%Reduced
Barclays PLC87,838$37.0M0.03%+4,762+5.7%Added
Parametric Portfolio Associates LLC87,205$36.7M0.02%+4,664+5.7%Added
Peregrine Capital Management LLC81,933$34.5M0.71%−735−0.9%Reduced
AMP Capital Investors Ltd80,745$34.0M0.19%+11,311+16.3%Added
Lord, Abbett & Co. LLC78,572$33.1M0.08%+3,293+4.4%Added
RMB Capital Management, LLC76,646$32.2M1.06%+5,667+8.0%Added
Rhumbline Advisers74,632$31.4M0.04%+3,724+5.3%Added
Credit Suisse AG72,738$30.6M0.02%−4,134−5.4%Reduced
AXA S.A.70,353$29.6M0.08%+58,700+503.7%Added
Burgundy Asset Management Ltd.70,328$29.6M0.29%+1,748+2.5%Added
Parnassus Investments68,663$28.9M0.06%+19,193+38.8%Added
UBS Group AG67,158$28.3M0.01%−10,738−13.8%Reduced
California State Teachers Retirement System65,935$27.7M0.04%−1,326−2.0%Reduced
Caisse de Depot Et Placement du Quebec65,406$27.5M0.06%+31,714+94.1%Added
Fiera Capital Corp64,576$27.2M0.07%+61,205+1,815.6%Added
Ensign Peak Advisors, Inc64,042$26.9M0.06%−5,151−7.4%Reduced
Epoch Investment Partners, Inc.63,284$26.6M0.15%+41,921+196.2%Added
Amundi59,621$25.1M0.02%−7,639−11.4%Reduced
Raymond James & Associates59,496$25.0M0.02%+15,636+35.6%Added
National Pension Service57,315$24.1M0.05%−6,289−9.9%Reduced
New York State Common Retirement Fund55,293$23.3M0.02%−400−0.7%Reduced
Principal Financial Group Inc54,970$23.1M0.02%+2,835+5.4%Added
HSBC Holdings PLC54,042$22.9M0.03%+1,010+1.9%Added
Envestnet Asset Management Inc52,963$22.3M0.01%−3,085−5.5%Reduced
Citadel Advisors LLC51,463$21.6M0.02%+16,291+46.3%Added
Ashford Capital Management Inc51,068$21.5M1.95%+618+1.2%Added
State Board of Administration of Florida Retirement System50,709$21.3M0.04%−1,493−2.9%Reduced
Public Employees Retirement Association of Colorado49,539$20.8M0.09%−1,648−3.2%Reduced
Citigroup Inc45,733$19.2M0.02%−9,235−16.8%Reduced
Copeland Capital Management, LLC43,367$18.2M0.52%+7,537+21.0%Added
New York State Teachers Retirement System41,241$17.4M0.04%−836−2.0%Reduced
Weitz Investment Management, Inc.SuperinvestorWeitz Investment Management40,800$17.2M0.72%+3,000+7.9%Added
Adage Capital Partners GP, L.L.C.39,750$16.7M0.03%−600−1.5%Reduced
Unigestion Holding SA37,282$15.7M0.63%+9,474+34.1%Added
Los Angeles Capital Management LLC36,811$15.5M0.07%−4,963−11.9%Reduced
Great West Life Assurance Co36,338$15.4M0.04%−4,247−10.5%Reduced
Westpac Banking Corp36,096$15.2M0.16%+6,406+21.6%Added
Forte Capital LLC35,715$15.0M2.04%−1,530−4.1%Reduced
Man Group plc35,450$14.9M0.05%+3,572+11.2%Added
Reynders McVeigh Capital Management, LLC35,041$14.7M0.90%+407+1.2%Added
Millennium Management LLC34,586$14.6M0.02%−50,740−59.5%Reduced
Hyperion Asset Management Ltd34,513$14.5M0.66%+3,858+12.6%Added
Prudential Financial Inc33,139$14.1M0.02%+116+0.4%Added
Eaton Vance Management33,986$14.0M0.02%+4,024+13.4%Added
North Point Portfolio Managers Corp31,725$13.3M1.87%−461−1.4%Reduced