MarketAxess Holdings Inc.
US ˙ NasdaqGS ˙ US57060D1081

SecurityMKTX / MarketAxess Holdings Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership11,305 shares
Latest Disclosed Value $ 1,865
Amalgamated Bank reports 3.59% decrease in ownership of MKTX / MarketAxess Holdings Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 11,305 shares of MarketAxess Holdings Inc. (US:MKTX) valued at $1,865,099 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 11,726 shares of MarketAxess Holdings Inc.. This represents a change in shares of -3.59% during the quarter. The current value of the position is $1,321,894 USD.

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)
2026-05-08 2026-03-31 13F MARKETAXES HOLDINGS COM 57060D108 11,305 -421 -3.59 2 -50.00 0.0143
2026-02-05 2025-12-31 13F MARKETAXES HOLDINGS COM 57060D108 11,726 6 0.05 2 0.00 0.0153
2025-10-29 2025-09-30 13F MARKETAXES HOLDINGS COM 57060D108 11,720 4,159 55.01 2 100.00 0.0146
2025-08-04 2025-06-30 13F MARKETAXES HOLDINGS COM 57060D108 7,561 285 3.92 2 0.00 0.0130
2025-04-25 2025-03-31 13F MARKETAXES HOLDINGS COM 57060D108 7,276 16 0.22 2 0.00 0.0135
2025-02-04 2024-12-31 13F MARKETAXES HOLDINGS COM 57060D108 7,260 -120 -1.63 2 0.00 0.0135
2024-10-30 2024-09-30 13F MARKETAXES HOLDINGS COM 57060D108 7,380 -284 -3.71 2 0.00 0.0156
2024-08-12 2024-06-30 13F MARKETAXES HOLDINGS COM 57060D108 7,664 -575 -6.98 2 0.00 0.0131
2024-04-23 2024-03-31 13F MARKETAXES HOLDINGS COM 57060D108 8,239 -5,329 -39.28 2 -66.67 0.0154
2024-02-06 2023-12-31 13F MARKETAXES HOLDINGS COM 57060D108 13,568 -1,043 -7.14 4 0.00 0.0317
2023-11-08 2023-09-30 13F MARKETAXES HOLDINGS COM 57060D108 14,611 -192 -1.30 3 0.00 0.0266
2023-08-11 2023-06-30 13F MARKETAXES HOLDINGS COM 57060D108 14,803 812 5.80 4 -40.00 0.0313
2023-05-02 2023-03-31 13F MARKETAXES HOLDINGS COM 57060D108 13,991 -561 -3.86 5 25.00 0.0467
2023-02-10 2022-12-31 13F MARKETAXES HOLDINGS COM 57060D108 14,552 212 1.48 4 -99.87 0.0362
2022-11-09 2022-09-30 13F MARKETAXES HOLDINGS COM 57060D108 14,340 184 1.30 3,191 -11.95 0.0308
2022-08-15 2022-06-30 13F MARKETAXES HOLDINGS COM 57060D108 14,156 3,344 30.93 3,624 -1.47 0.0338
2022-08-25 2022-03-31 13F/A-1 MARKETAXES HOLDINGS COM 57060D108 10,812 441 4.25 3,678 -13.76 0.0286
2022-06-30 2022-03-31 13F MARKETAXES HOLDINGS COM 57060D108 10,812 441 3,678 0.0292
2022-02-15 2021-12-31 13F/A-1 MARKETAXES HOLDINGS COM 57060D108 10,371 1,933 22.91 4,265 20.14 0.0315
2022-02-15 2021-12-31 13F MARKETAXES HOLDINGS COM 57060D108 10,371 1,933 4,265 0.0315
2021-10-29 2021-09-30 13F MARKETAXES HOLDINGS COM 57060D108 8,438 -370 -4.20 3,550 -13.05 0.0300
2021-08-16 2021-06-30 13F MARKETAXES HOLDINGS COM 57060D108 8,808 6,526 285.98 4,083 259.42 0.0327
2021-05-13 2021-03-31 13F MARKETAXES HOLDINGS COM 57060D108 2,282 -111 -4.64 1,136 -16.78 0.0426
2021-02-12 2020-12-31 13F MARKETAXES HOLDINGS COM 57060D108 2,393 -4 -0.17 1,365 18.28 0.0517
2020-10-30 2020-09-30 13F MARKETAXES HOLDINGS COM 57060D108 2,397 -72 -2.92 1,154 -6.71 0.0502
2020-08-10 2020-06-30 13F MARKETAXES HOLDINGS COM 57060D108 2,469 -7,667 -75.64 1,237 -63.30 0.0572
2020-05-13 2020-03-31 13F MARKETAXES HOLDINGS COM 57060D108 10,136 -224 -2.16 3,371 -14.18 0.0824
2020-02-13 2019-12-31 13F MARKETAXES HOLDINGS COM 57060D108 10,360 574 5.87 3,928 22.56 0.0723
2019-11-13 2019-09-30 13F MARKETAXES HOLDINGS COM 57060D108 9,786 1,289 15.17 3,205 17.36 0.0674
2019-08-14 2019-06-30 13F MARKETAXES HOLDINGS COM 57060D108 8,497 -234 -2.68 2,731 27.08 0.0637
2019-05-15 2019-03-31 13F MARKETAXES HOLDINGS COM 57060D108 8,731 121 1.41 2,149 18.14 0.0521
2019-02-15 2018-12-31 13F MARKETAXES HOLDINGS COM 57060D108 8,610 3,192 58.91 1,819 88.11 0.0515
2018-11-14 2018-09-30 13F MARKETAXES HOLDINGS COM 57060D108 5,418 -3,533 -39.47 967 -45.40 0.0239
2018-07-18 2018-06-30 13F MARKETAXES HOLDINGS COM 57060D108 8,951 723 8.79 1,771 -1.01 0.0433
2018-05-22 2018-03-31 13F MARKETAXES HOLDINGS COM 57060D108 8,228 502 6.50 1,789 14.75 0.0475
2018-02-13 2017-12-31 13F MARKETAXES HOLDINGS COM 57060D108 7,726 408 5.58 1,559 15.48 0.0422
2017-11-09 2017-09-30 13F MARKETAXES HOLDINGS COM 57060D108 7,318 -131 -1.76 1,350 -9.88 0.0420
2017-08-10 2017-06-30 13F MARKETAXES HOLDINGS COM 57060D108 7,449 1,540 26.06 1,498 35.20 0.0491
2017-05-12 2017-03-31 13F MARKETAXES HOLDINGS COM 57060D108 5,909 -1,186 -16.72 1,108 6.33 0.0551
2017-02-14 2016-12-31 13F MARKETAXES HOLDINGS COM 57060D108 7,095 687 10.72 1,042 -1.79 0.0471
2016-11-15 2016-09-30 13F/A-1 MARKETAXES HOLDINGS COM 57060D108 6,408 -5 -0.08 1,061 2.12 0.0616
2016-08-16 2016-06-30 13F MARKETAXES HOLDINGS COM 57060D108 6,413 2,310 56.30 1,039 102.93 0.0601
2016-05-11 2016-03-31 13F MARKETAXES HOLDINGS COM 57060D108 4,103 347 9.24 512 22.20 0.0499
2016-02-10 2015-12-31 13F MARKETAXES HOLDINGS COM 57060D108 3,756 -158 -4.04 419 15.11 0.0517
2015-11-04 2015-09-30 13F MARKETAXES HOLDINGS COM 57060D108 3,914 53 1.37 364 1.68 0.0382
2015-07-10 2015-06-30 13F MARKETAXES HOLDINGS COM 57060D108 3,861 30 0.78 358 12.58 0.0352
2015-04-22 2015-03-31 13F MARKETAXES HOLDINGS COM 57060D108 3,831 3,831 0.00 318 0.0388
2015-01-29 2014-12-31 13F MARKETAXES HOLDINGS COM 57060D108 0 -3,678 -100.00 0 -100.00
2014-11-14 2014-09-30 13F MARKETAXES HOLDINGS COM 57060D108 3,678 -175 -4.54 228 0.00 0.0339
2014-05-12 2014-03-31 13F MARKETAXES HOLDINGS INC COM COM 57060D108 3,853 -36 -0.93 228 -12.31 0.0393
2014-02-13 2013-12-31 13F MARKETAXES HOLDINGS INC COM COM 57060D108 3,889 3,889 260 0.0442
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.