Marketaxess Holdings Inc (MKTX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

37,363,773Shares Outstanding

52,383Shares held by institutions

$9,365,033Value of institutional holdings

109.57%Institutional ownership %

15.30%Shares Changed QoQ

440No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

The institutional landscape for Marketaxess Holdings Inc (NASDAQ:MKTX) includes 440 filers as of the latest reporting cycle ending September 2025.

The percentage of Marketaxess Holdings owned by institutions changed from 97.5% in June 2025 to 109.6% in September 2025, marking a slight up trend.
Quarterly data indicates a 15.30% shift in institutional share volume, and the annual owner count reflects a decrease of 12.70%.
A review of institutional activity for Marketaxess Holdings shows 209 of 440 filers increasing their positions, while 193 reduced their stake, and 38 remained unchanged.
Collectively, institutional investors increased their stake in Marketaxess Holdings to 40.94Mn shares as of September 2025, a change that is up by 5.43Mn shares quarter on quarter and up 4.56Mn shares year over year.
The top institutional stake in Marketaxess Holdings as of September 30, 2025 belongs to Lombard Odier Asset Management (Europe) Ltd, which owns 4.61Mn shares, or 12.35% of the company.
Among the most significant buyers of Marketaxess Holdings during September 2025 were Lombard Odier Asset Management (Europe) Ltd (4.59Mn), HSBC HOLDINGS PLC (1.74Mn), MILLENNIUM MANAGEMENT LLC (897.37K), PRIMECAP MANAGEMENT CO/CA/ (891.30K), North Reef Capital Management LP (491.36K).
Leading sellers of Marketaxess Holdings stock in September 2025 included T. Rowe Price Investment Management, Inc. (961.29K), BlackRock, Inc. (799.48K), Invesco Ltd. (776.89K), VANGUARD GROUP INC (505.06K), AMERICAN CENTURY COMPANIES INC (471.71K).
The top 10 institutional holders of Marketaxess Holdings for the quarter ending September 2025 included Lombard Odier Asset Management (Europe) Ltd (4.61Mn), VANGUARD GROUP INC (3.85Mn), PRIMECAP MANAGEMENT CO/CA/ (2.23Mn), FMR LLC (2.14Mn), VAN ECK ASSOCIATES CORP (1.95Mn), BlackRock, Inc. (1.85Mn), HSBC HOLDINGS PLC (1.80Mn), T. Rowe Price Investment Management, Inc. (1.37Mn), GUARDCAP ASSET MANAGEMENT Ltd (1.36Mn), MILLENNIUM MANAGEMENT LLC (1.33Mn).

440 Institutional Holders

52,383 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
Lombard Odier Asset Management (Europe) Ltd	30 Sep, 2025	4,614,250	4,589,500	18,543.43%	$6,905,549.00
VANGUARD GROUP INC	30 Sep, 2025	3,854,312	-505,060	-11.59%	$671,613,866.00
PRIMECAP MANAGEMENT CO/CA/	30 Sep, 2025	2,230,595	891,303	66.55%	$388,681,183.00
FMR LLC	30 Sep, 2025	2,143,921	-188,225	-8.07%	$373,578,312.00
VAN ECK ASSOCIATES CORP	30 Sep, 2025	1,948,633	119,036	6.51%	$339,549.00
BlackRock, Inc.	30 Sep, 2025	1,850,409	-799,477	-30.17%	$322,433,696.00
HSBC HOLDINGS PLC	30 Sep, 2025	1,798,766	1,740,316	2,977.44%	$315,448,365.00
T. Rowe Price Investment Management, Inc.	30 Sep, 2025	1,370,694	-961,294	-41.22%	$238,844.00
GUARDCAP ASSET MANAGEMENT Ltd	30 Sep, 2025	1,361,264	-137,094	-9.15%	$237,200,252.00
MILLENNIUM MANAGEMENT LLC	30 Sep, 2025	1,329,556	897,374	207.64%	$231,675,133.00
STATE STREET CORP	30 Sep, 2025	1,320,657	-212,039	-13.83%	$230,124,482.00
AQR CAPITAL MANAGEMENT LLC	30 Sep, 2025	951,088	192,626	25.40%	$165,727,188.00
North Reef Capital Management LP	30 Sep, 2025	911,358	491,358	116.99%	$158,804,132.00
GEODE CAPITAL MANAGEMENT, LLC	30 Sep, 2025	830,996	-310,202	-27.18%	$144,823,137.00
Burgundy Asset Management Ltd.	30 Sep, 2025	692,216	277,846	67.05%	$127,256,989.00
Findlay Park Partners LLP	30 Sep, 2025	644,700	-11,600	-1.77%	$112,338,975.00
MORGAN STANLEY	30 Sep, 2025	549,023	124,216	29.24%	$95,667,471.00
DIMENSIONAL FUND ADVISORS LP	30 Sep, 2025	521,129	9,707	1.90%	$90,814,989.00
BNP PARIBAS FINANCIAL MARKETS	30 Sep, 2025	486,106	400,691	469.11%	$84,703,970.00
JPMORGAN CHASE & CO	30 Sep, 2025	447,925	28,881	6.89%	$78,050,980.00

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Marketaxess Holdings Inc (MKTX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

440 Institutional Holders

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