MarketAxess Ownership | Who Owns MarketAxess?


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MarketAxess Ownership Summary


MarketAxess is owned by 63.06% institutional investors, 2.34% insiders, and 34.60% retail investors. Lombard odier asset management (europe) is the largest institutional shareholder, holding 12.40% of MKTX shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 6.31% of its assets in MarketAxess shares.

MKTX Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockMarketAxess63.06%2.34%34.60%
SectorFinancial Services Stocks 32.19%15.44%52.37%
IndustryCapital Markets Stocks28.28%14.21%57.51%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Lombard odier asset management (europe)4.61M12.40%$6.91M
Vanguard group3.84M10.37%$695.98M
Blackrock funding, inc. /de3.75M10.18%$679.05M
Primecap management co/ca/3.18M8.63%$575.55M
Blackrock2.95M7.82%$591.45M
Fmr2.14M5.76%$373.58M
Van eck associates1.95M5.24%$339.55M
Hsbc1.80M4.83%$315.45M
T. rowe price investment management1.37M3.68%$238.84M
State street1.32M3.55%$230.12M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
North reef capital management lp911.36K7.43%$158.80M
Source financial advisors115.36K7.11%$23.13M
Guardcap asset management1.15M5.58%$208.98M
Rdst capital281.55K4.62%$49.06M
Goodman financial76.29K2.62%$13.83M
Taika capital, lp11.89K2.05%$2.69M
Robertson opportunity capital28.83K1.90%$5.23M
Wilson asset management () pty39.46K1.84%$7.15M
Qsv equity investors6.75K1.81%$1.22M
Alamar capital management16.83K1.55%$2.93B

Top Buyers

HolderShares% AssetsChange
Lombard odier asset management (europe)4.61M0.35%4.59M
Blackrock funding, inc. /de3.75M0.01%1.90M
Hsbc1.80M0.17%1.74M
Primecap management co/ca/3.18M0.44%944.83K
Bank of montreal /can/951.02K0.06%932.69K

Top Sellers

HolderShares% AssetsChange
T. rowe price investment management1.37M0.15%-961.29K
Invesco76.33K0.00%-776.89K
American century companies15.48K0.00%-471.71K
Marshall wace, llp---358.33K
Congress asset management co /ma---286.28K

New Positions

HolderShares% AssetsChangeValue
Norges bank503.86K0.01%503.86K$91.32M
Cooke & bieler lp104.10K0.20%104.10K$18.87M
Bw gestao de investimentos ltda.49.50K0.20%49.50K$8.97M
Polar asset management partners40.25K0.08%40.25K$7.01M
Weiss asset management lp34.40K0.07%34.40K$5.99M

Sold Out

HolderChange
Claris advisors, llc / mo /-1.00
Colonial trust advisors-1.00
Westend advisors-1.00
Nelson, van denburg & campbell wealth management group-1.00
Advisornet financial-1.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2025335-27.80%23,348,295-41.93%630.54%184-19.65%115-36.11%
Sep 30, 2025440-17.14%40,083,41514.30%1071.21%218-28.52%1706.92%
Jun 30, 20255362.49%36,950,8530.68%991.03%3108.77%157-9.77%
Mar 31, 2025521-36,702,491-2.53%980.97%284-2.07%17410.13%
Dec 31, 2024480-6.43%34,601,729-4.06%921.00%2669.46%145-24.87%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Small-Cap ETF2.24M6.31%2.24M
Vanguard Capital Opportunity Inv1.75M4.93%570.07K
Vanguard Total Stock Mkt Idx Inv1.12M3.15%2.38K
Vanguard US Total Market Shares ETF1.14M3.02%-58.38K
Vanguard Institutional 500 Index Trust1.07M2.86%6.63K
T. Rowe Price Mid-Cap Growth1.05M2.80%-1.90K
T. Rowe Price US Mid-Cap Growth Equity1.05M2.79%-1.20K
Vanguard 500 Index Investor928.63K2.48%-136.14K
PRIMECAP Odyssey Aggressive Growth860.96K2.42%198.94K
VanEck Morningstar Wide Moat842.48K2.37%-685.89K

Recent Insider Transactions


DateNameRoleActivityValue
Mar 10, 2026Pintoff Scott General Counsel and SecretarySell$18.49K
Feb 10, 2026Pintoff Scott General Counsel and SecretarySell$17.19K
Jan 12, 2026Pintoff Scott General Counsel and SecretarySell$16.86K
Dec 12, 2025Pintoff Scott General Counsel and SecretarySell$17.79K
Sep 12, 2025McPherson Kevin M Chief Revenue OfficerSell$276.87K

Insider Transactions Trends


DateBuySell
2026 Q1-3
2025 Q4-1
2025 Q3-2
2025 Q2-2
2025 Q1--

MKTX Ownership FAQ


Who Owns MarketAxess?

MarketAxess shareholders are primarily institutional investors at 63.06%, followed by 2.34% insiders and 34.60% retail investors. The average institutional ownership in MarketAxess's industry, Capital Markets Stocks, is 28.28%, which MarketAxess exceeds.

Who owns the most shares of MarketAxess?

MarketAxess’s largest shareholders are Lombard odier asset management (europe) (4.61M shares, 12.40%), Vanguard group (3.84M shares, 10.37%), and Blackrock funding, inc. /de (3.75M shares, 10.18%). Together, they hold 32.95% of MarketAxess’s total shares outstanding.

Does Blackrock own MarketAxess?

Yes, BlackRock owns 7.82% of MarketAxess, totaling 2.95M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 591.45M$. In the last quarter, BlackRock decreased its holdings by -274K shares, a -8.51% change.

Who is MarketAxess’s biggest shareholder by percentage of total assets invested?

North reef capital management lp is MarketAxess’s biggest shareholder by percentage of total assets invested, with 7.43% of its assets in 911.36K MarketAxess shares, valued at 158.8M$.

Who is the top mutual fund holder of MarketAxess shares?

iShares Core S&P Small-Cap ETF is the top mutual fund holder of MarketAxess shares, with 6.31% of its total shares outstanding invested in 2.24M MarketAxess shares.

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