MarketAxess Holdings Inc.
DE ˙ DB ˙ US57060D1081
102,45 € ↓ −2,40 (−2,29%)
2026-06-05
DELAT PRIS
SecurityDE:MWI / MarketAxess Holdings Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership4,034,537 shares
Ownership 10.90%
BlackRock, Inc. ownership in MWI / MarketAxess Holdings Inc.

2026-02-06 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,034,537 shares of MarketAxess Holdings Inc. (DE:MWI). This represents 10.9 percent ownership of the company. In their previous filing dated 2026-01-21 , BlackRock, Inc. had reported owning 3,680,645 shares, indicating an increase of 9.61 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2026-02-06 2026-02-06 13G/A 3,680,645 4,034,537 9.61 10.90 10.10
2026-01-21 2026-01-21 13G 1,572,513 3,680,645 134.06 9.90 135.71
2025-10-17 2025-10-17 13G/A 2,480,491 1,572,513 -36.60 4.20 -36.36
2025-04-17 2025-04-17 13G/A 3,178,566 2,480,491 -21.96 6.60 -21.43
2024-01-25 2024-01-25 13G/A 3,820,652 3,178,566 -16.81 8.40 -17.65
2023-03-08 2023-03-08 13G/A 3,320,494 3,820,652 15.06 10.20 15.91
2023-01-25 2023-01-25 13G 3,563,993 3,320,494 -6.83 8.80 -6.38
2022-02-03 2022-02-03 13G/A 3,435,510 3,563,993 3.74 9.40 3.30
2021-01-29 2021-01-29 13G/A 3,273,146 3,435,510 4.96 9.10 4.60
2020-02-05 2020-02-05 13G/A 3,888,102 3,273,146 -15.82 8.70 -15.53
2019-06-07 2019-06-07 13G/A 3,479,464 3,888,102 11.74 10.30 10.75
2019-02-06 2019-02-06 13G/A 3,104,233 3,479,464 12.09 9.30 12.05
2018-01-25 2018-01-25 13G/A 2,849,720 3,104,233 8.93 8.30 9.21
2017-01-25 2017-01-25 13G/A 3,326,379 2,849,720 -14.33 7.60 -14.61
2016-01-26 2016-01-26 13G/A 3,326,379 8.90
2015-01-15 2015-01-15 13G/A 3,370,853 9.00
2014-01-30 2014-01-30 13G/A 3,368,127 9.00
2013-02-08 2013-02-08 13G/A 1,178,472 7.69
2013-01-30 2013-01-30 13G 2,722,264 7.30
2012-02-10 2012-02-10 13G/A 1,107,579 7.37

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F MARKETAXESS HLDGS COM 57060D108 4,075,154 328,682 8.77 672,319 -0.99 0.0117
2026-02-12 2025-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,746,472 1,896,063 102.47 679,048 110.60 0.0115
2025-11-12 2025-09-30 13F MARKETAXESS HLDGS COM 57060D108 1,850,409 -799,477 -30.17 322,434 -45.52 0.0056
2025-08-12 2025-06-30 13F MARKETAXESS HLDGS COM 57060D108 2,649,886 44,490 1.71 591,826 4.99 0.0113
2025-05-02 2025-03-31 13F MARKETAXESS HLDGS COM 57060D108 2,605,396 -558,489 -17.65 563,677 -21.18 0.0118
2025-02-07 2024-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,163,885 259,984 8.95 715,164 -3.87 0.0145
2024-11-13 2024-09-30 13F MARKETAXESS HLDGS COM 57060D108 2,903,901 -45,535 -1.54 743,979 25.79 0.0156
2024-08-13 2024-06-30 13F MARKETAXESS HLDGS COM 57060D108 2,949,436 -274,497 -8.51 591,450 -16.33 0.0134
2024-05-10 2024-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,223,933 45,367 1.43 706,847 -24.06 0.0165
2024-02-13 2023-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,178,566 -415,939 -11.57 930,843 21.21 0.0237
2023-11-13 2023-09-30 13F MARKETAXESS HLDGS COM 57060D108 3,594,505 -314,564 -8.05 767,930 -24.85 0.0221
2023-08-11 2023-06-30 13F MARKETAXESS HLDGS COM 57060D108 3,909,069 -19,610 -0.50 1,021,909 -33.52 0.0282
2023-05-12 2023-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,928,679 608,107 18.31 1,537,253 66.00 0.0453
2023-02-13 2022-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,320,572 110,405 3.44 926,074 29.66 0.0290
2022-11-14 2022-09-30 13F MARKETAXESS HLDGS COM 57060D108 3,210,167 23,861 0.75 714,231 -12.44 0.0243
2022-08-12 2022-06-30 13F MARKETAXESS HLDGS COM 57060D108 3,186,306 -232,029 -6.79 815,726 -29.86 0.0262
2022-05-12 2022-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,418,335 -145,658 -4.09 1,162,917 -20.66 0.0313
2022-02-10 2021-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,563,993 54,516 1.55 1,465,763 -0.72 0.0373
2021-11-09 2021-09-30 13F MARKETAXESS HLDGS COM 57060D108 3,509,477 -35,424 -1.00 1,476,403 -10.16 0.0413
2021-08-11 2021-06-30 13F MARKETAXESS HLDGS COM 57060D108 3,544,901 78,312 2.26 1,643,382 -4.79 0.0457
2021-05-07 2021-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,466,589 31,079 0.90 1,726,084 -11.94 0.0507
2021-02-05 2020-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,435,510 -211,814 -5.81 1,960,163 11.59 0.0625
2020-11-06 2020-09-30 13F MARKETAXESS HLDGS COM 57060D108 3,647,324 118,334 3.35 1,756,515 -0.64 0.0648
2020-08-14 2020-06-30 13F MARKETAXESS HLDGS COM 57060D108 3,528,990 175,020 5.22 1,767,743 58.48 0.0706
2020-05-01 2020-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,353,970 80,824 2.47 1,115,430 -10.11 0.0546
2020-02-13 2019-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,273,146 96,133 3.03 1,240,884 19.26 0.0476
2019-11-08 2019-09-30 13F MARKETAXESS HLDGS COM 57060D108 3,177,013 231,165 7.85 1,040,473 9.89 0.0437
2019-08-22 2019-06-30 13F/A-1 MARKETAXESS HLDGS COM 57060D108 2,945,848 -579,430 -16.44 946,855 9.15 0.0405
2019-08-13 2019-06-30 13F MARKETAXESS HLDGS COM 57060D108 2,945,848 -579,430 946,855
2019-05-09 2019-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,525,278 45,814 1.32 867,502 17.99 0.0387
2019-02-08 2018-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,479,464 4,153 0.12 735,244 18.53 0.0371
2018-11-09 2018-09-30 13F MARKETAXESS HLDGS COM 57060D108 3,475,311 63,817 1.87 620,307 -8.10 0.0268
2018-08-09 2018-06-30 13F MARKETAXESS HLDGS COM 57060D108 3,411,494 117,686 3.57 674,996 -5.75 0.0311
2018-05-09 2018-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,293,808 189,575 6.11 716,206 14.36 0.0342
2018-02-09 2017-12-31 13F MARKETAXESS HLDGS COM 57060D108 3,104,233 47,260 1.55 626,279 11.03 0.0298
2017-11-14 2017-09-30 13F MARKETAXESS HLDGS COM 57060D108 3,056,973 -6,615 -0.22 564,042 -8.45 0.0285
2017-08-10 2017-06-30 13F MARKETAXESS HLDGS COM 57060D108 3,063,588 62,914 2.10 616,087 9.51 0.0327
2017-05-12 2017-03-31 13F MARKETAXESS HLDGS COM 57060D108 3,000,674 2,982,691 16,586.17 562,595 21,194.28 0.0309
2017-02-10 2016-12-31 13F MARKETAXESS HLDGS COM 57060D108 17,983 -3,224 -15.20 2,642 -24.75 0.0037
2016-11-08 2016-09-30 13F MARKETAXESS HLDGS COM 57060D108 21,207 4,028 23.45 3,511 40.55 0.0050
2016-08-10 2016-06-30 13F MARKETAXESS HLDGS COM 57060D108 17,179 2,638 18.14 2,498 37.63 0.0038
2016-05-10 2016-03-31 13F MARKETAXESS HLDGS COM 57060D108 14,541 1,230 9.24 1,815 22.14 0.0029
2016-02-11 2015-12-31 13F MARKETAXESS HLDGS COM 57060D108 13,311 12,312 1,232.43 1,486 1,515.22 0.0022
2015-11-13 2015-09-30 13F MARKETAXESS HLDGS COM 57060D108 999 -21 -2.06 92 -3.16 0.0001
2015-08-07 2015-06-30 13F MARKETAXESS HLDGS COM 57060D108 1,020 -63 -5.82 95 5.56 0.0001
2015-05-13 2015-03-31 13F MARKETAXESS HLDGS COM 57060D108 1,083 -87 -7.44 90 8.43 0.0001
2015-02-09 2014-12-31 13F MARKETAXESS HLDGS COM 57060D108 1,170 744 174.65 83 130.56 0.0001
2014-10-29 2014-09-30 13F MEASUREMENT SPECIALTIES COM 583421102 426 -117 -21.55 36 -21.74 0.0001
2014-10-29 2014-09-30 13F MARKETAXESS HLDGS COM 57060D108 1,170 0 73 0.0001
2014-08-06 2014-06-30 13F MEASUREMENT SPECIALTIES COM 583421102 543 -28 -4.90 46 21.05 0.0001
2014-08-06 2014-06-30 13F MARKETAXESS HLDGS COM 57060D108 1,170 -45 64 0.0001
2014-05-02 2014-03-31 13F MEASUREMENT SPECIALTIES COM 583421102 571 0 0.00 38 8.57 0.0001
2014-05-02 2014-03-31 13F MARKETAXESS HLDGS COM 57060D108 1,215 0 72 0.0001
2014-02-12 2013-12-31 13F MEASUREMENT SPECIALTIES COM 583421102 571 0 0.00 35 12.90 0.0001
2014-02-12 2013-12-31 13F MARKETAXESS HLDGS COM 57060D108 1,215 -31 81 0.0001
2013-11-12 2013-09-30 13F MEASUREMENT SPECIALTIES COM 583421102 571 -16,667 -96.69 31 -96.14 0.0001
2013-11-12 2013-09-30 13F MARKETAXESS HLDGS COM 57060D108 1,246 46 74 0.0001
2013-08-13 2013-06-30 13F MEASUREMENT SPECIALTIES COM 583421102 17,238 17,238 803 0.0016
2013-08-13 2013-06-30 13F MARKETAXESS HLDGS COM 57060D108 1,200 -16,038 56 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.