NEW YORK, NY
MARKETAXESS HOLDINGS INCMKTX— Latest position per institution from SEC 13F filings
15
Institutional holders
33.62M
Total shares held
5.53B
Estimated value
1.68M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
4.08M
Value
672.32M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
3.84M
Value
695.98M
Filed
Dec 31, 2025
PRIMECAP MANAGEMENT CO/CA/
CIK 763212
Shares
3.35M
Value
552.21M
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
2.95M
Value
591.45M
Filed
Jun 30, 2024
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
2.68M
Value
442.76M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
2.16M
Value
356.96M
Filed
Mar 31, 2026
NORTH REEF CAPITAL MANAGEMENT LP
CIK 1867831
Shares
1.88M
Value
309.34M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.61M
Value
265.50M
Filed
Mar 31, 2026
FMR LLC
CIK 315066
Shares
1.52M
Value
250.67M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
1.28M
Value
211.32M
Filed
Mar 31, 2026
VAN ECK ASSOCIATES CORP
CIK 869178
Shares
1.24M
Value
204.46K
Filed
Mar 31, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
1.21M
Value
198.86M
Filed
Mar 31, 2026
BANK OF MONTREAL /CAN/
CIK 927971
Shares
1.02M
Value
168.37M
Filed
Mar 31, 2026
NEUBERGER BERMAN GROUP LLC
CIK 1465109
Shares
966.03K
Value
159.38M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
862.99K
Value
142.40M
Filed
Mar 31, 2026
BURGUNDY ASSET MANAGEMENT LTD.
CIK 1315868
Shares
692.22K
Value
127.26M
Filed
Sep 30, 2025
GUARDCAP ASSET MANAGEMENT LTD
CIK 1732008
Shares
643.37K
Value
106.35M
Filed
Mar 31, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
581.48K
Value
95.93M
Filed
Mar 31, 2026
JPMORGAN CHASE & CO
CIK 19617
Shares
545.36K
Value
98.85M
Filed
Dec 31, 2025
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
524.02K
Value
86.45M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 4.08M | 672.32M | Mar 31, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 3.84M | 695.98M | Dec 31, 2025 |
| 3 | PRIMECAP MANAGEMENT CO/CA/ | 763212 | 3.35M | 552.21M | Mar 31, 2026 |
| 4 | BLACKROCK FINANCE, INC. | 1364742 | 2.95M | 591.45M | Jun 30, 2024 |
| 5 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 2.68M | 442.76M | Mar 31, 2026 |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 2.16M | 356.96M | Mar 31, 2026 |
| 7 | NORTH REEF CAPITAL MANAGEMENT LP | 1867831 | 1.88M | 309.34M | Mar 31, 2026 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.61M | 265.50M | Mar 31, 2026 |
| 9 | FMR LLC | 315066 | 1.52M | 250.67M | Mar 31, 2026 |
| 10 | STATE STREET CORP | 93751 | 1.28M | 211.32M | Mar 31, 2026 |
| 11 | VAN ECK ASSOCIATES CORP | 869178 | 1.24M | 204.46K | Mar 31, 2026 |
| 12 | MILLENNIUM MANAGEMENT LLC | 1273087 | 1.21M | 198.86M | Mar 31, 2026 |
| 13 | BANK OF MONTREAL /CAN/ | 927971 | 1.02M | 168.37M | Mar 31, 2026 |
| 14 | NEUBERGER BERMAN GROUP LLC | 1465109 | 966.03K | 159.38M | Mar 31, 2026 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 862.99K | 142.40M | Mar 31, 2026 |
| 16 | BURGUNDY ASSET MANAGEMENT LTD. | 1315868 | 692.22K | 127.26M | Sep 30, 2025 |
| 17 | GUARDCAP ASSET MANAGEMENT LTD | 1732008 | 643.37K | 106.35M | Mar 31, 2026 |
| 18 | DIMENSIONAL FUND ADVISORS LP | 354204 | 581.48K | 95.93M | Mar 31, 2026 |
| 19 | JPMORGAN CHASE & CO | 19617 | 545.36K | 98.85M | Dec 31, 2025 |
| 20 | TWO SIGMA INVESTMENTS, LP | 1179392 | 524.02K | 86.45M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.