Marketaxess Holdings Inc

Robeco Institutional Asset Management B.V. MKTX

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/23/2026

Shares

25,000

Value ($000)

4,531

Weight

0.0%

2017 Q1 - 2025 Q4 (32 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	1/23/2026	4,531	0.0%	25,000	12/31/2025
2025 Q3	10/22/2025	10,455	0.0%	60,000	9/30/2025
2025 Q2	7/18/2025	16,751	0.0%	75,000	6/30/2025
2025 Q1	4/23/2025	12,833	0.0%	59,315	3/31/2025
2024 Q4	1/23/2025	18,775	0.0%	83,060	12/31/2024
2024 Q3	10/29/2024	8,807	0.0%	34,376	9/30/2024
2024 Q2	7/23/2024	9,080	0.0%	45,279	6/30/2024
2024 Q1	4/24/2024	10,194	0.0%	46,495	3/31/2024
2023 Q4	2/14/2024	14,318	0.0%	48,893	12/31/2023
2023 Q3	10/24/2023	3,591	0.0%	16,808	9/30/2023
2023 Q2	7/24/2023	4,890	0.0%	18,705	6/30/2023
2023 Q1	5/4/2023	869	0.0%	2,222	3/31/2023
2022 Q4	2/7/2023	302	0.0%	1,083	12/31/2022
2022 Q3	12/1/2022	278	0.0%	1,249	9/30/2022
2022 Q2	12/1/2022	586	0.0%	2,288	6/30/2022
2022 Q1	12/1/2022	321	0.0%	944	3/31/2022
2021 Q4	12/1/2022	3	0.0%	7	12/31/2021
2021 Q2	12/1/2022	2,052	0.0%	4,428	6/30/2021
2021 Q1	12/1/2022	33,512	0.1%	67,301	3/31/2021
2020 Q4	12/1/2022	44,358	0.1%	77,745	12/31/2020
2020 Q3	1/19/2021	24,979	0.1%	51,866	9/30/2020
2020 Q2	1/19/2021	29,155	0.1%	58,204	6/30/2020
2020 Q1	1/19/2021	9,665	0.0%	29,063	3/31/2020
2019 Q4	1/19/2021	12,748	0.0%	33,629	12/31/2019
2019 Q3	1/19/2021	1,439	0.0%	4,397	9/30/2019
2019 Q2	1/19/2021	71	0.0%	222	6/30/2019
2018 Q2	1/19/2021	8,805	0.0%	44,500	6/30/2018
2018 Q1	1/19/2021	14,025	0.1%	64,500	3/31/2018
2017 Q4	1/19/2021	4,767	0.0%	23,629	12/31/2017
2017 Q3	1/19/2021	3,413	0.0%	18,500	9/30/2017
2017 Q2	1/19/2021	4,922	0.0%	24,472	6/30/2017
2017 Q1	1/19/2021	6,069	0.0%	32,372	3/31/2017