Who Owns ARKETAXESS HLDGS INC (MKTX)? -- Institutional Holders (2026-06-30)

501 institutions reported holding $4.74B of ARKETAXESS HLDGS INC (MKTX) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($453.9M), VANGUARD GROUP INC ($445.7M), PRIMECAP MANAGEMENT CO/CA/ ($397.8M), North Reef Capital Management LP ($385.3M), AQR CAPITAL MANAGEMENT LLC ($222.8M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1BlackRock, Inc.$453.9M4.0MTrimmed
2VANGUARD GROUP INC$445.7M3.9MTrimmed
3PRIMECAP MANAGEMENT CO/CA/$397.8M3.5MAdded
4North Reef Capital Management LP$385.3M3.4MAdded
5AQR CAPITAL MANAGEMENT LLC$222.8M2.0MTrimmed
6FMR LLC$159.5M1.4MTrimmed
7STATE STREET CORP$145.4M1.3MAdded
8NEUBERGER BERMAN GROUP LLC$139.6M1.2MAdded
9MILLENNIUM MANAGEMENT LLC$131.2M1.2MTrimmed
10CITIGROUP INC$120.8M1.1MAdded
11GOLDMAN SACHS GROUP INC$117.0M1.0MAdded
12BANK OF MONTREAL /CAN/$115.4M1.0MTrimmed
13GEODE CAPITAL MANAGEMENT, LLC$112.9M994,772Added
14VAN ECK ASSOCIATES CORP$104.9M924,617Trimmed
15DIMENSIONAL FUND ADVISORS LP$67.8M597,894Added
16NORGES BANK$65.0M572,422Added
17CITADEL ADVISORS LLC$62.2M548,489Added
18GUARDCAP ASSET MANAGEMENT Ltd$62.2M536,324Trimmed
19TWO SIGMA INVESTMENTS, LP$61.7M543,890Added
20Azora Capital LP$58.2M513,081New
21Davis Asset Management, L.P.$56.7M500,000Added
22JPMORGAN CHASE & CO$48.3M438,001Added
23MORGAN STANLEY$48.0M422,864Trimmed
24LOS ANGELES CAPITAL MANAGEMENT LLC$44.5M392,065Added
25Sixth Street Partners Management Company, L.P.$37.5M330,815New

Source: SEC Form 13F filings · as of 2026-06-30