# Marketaxess Holdings Inc: filings

MKTX · Nasdaq · CIK 1278021 · [Financials](/sectors/financials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/mktx.md) · [Financials](/companies/mktx/financials.md) · [Filings](/companies/mktx/filings.md) · [Insiders](/companies/mktx/insiders.md)

## Reports and events: 264 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 694, 8-K 163, SC 13G/A 63, 10-Q 53, 3 29, DEFA14A 20, SC 13G 20, 144 19, 10-K 18, DEF 14A 18, ARS 11, SCHEDULE 13G/A 10, UPLOAD 8, CORRESP 5, SCHEDULE 13G 5, 10-K/A 4, 5 4, 8-K/A 4, 4/A 3, S-8 3, SC 13D/A 3, 424B3 2, FWP 2, PRE 14A 2, 10-Q/A 1, 424B4 1, CT ORDER 1, DEFM14A 1, DFAN14A 1, EFFECT 1, PREM14A 1, S-3ASR 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-23 | 16:22 ET | [8-K](/filings/0001193125-26-430472.md) | 8.01 Other events | 0001193125-26-430472 |
| 2026-10-23 | 06:30 ET | [8-K](/filings/0001193125-26-429420.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-429420 |
| 2026-10-22 | 13:21 ET | [8-K](/filings/0001193125-26-428689.md) | 8.01 Other events | 0001193125-26-428689 |
| 2026-09-29 | 17:24 ET | [8-K](/filings/0001193125-26-407834.md) | 8.01 Other events | 0001193125-26-407834 |
| 2026-08-07 | 16:10 ET | [10-Q](/filings/0001193125-26-340249.md) | Quarterly report, period 2026-06-30 | 0001193125-26-340249 |
| 2026-07-30 | 07:50 ET | [8-K](/filings/0001193125-26-324950.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-324950 |
| 2026-07-30 | 07:44 ET | [8-K](/filings/0001193125-26-324933.md) | 1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-324933 |
| 2026-06-10 | 16:15 ET | [8-K](/filings/0001193125-26-265854.md) | 5.07 Shareholder vote results | 0001193125-26-265854 |
| 2026-05-07 | 16:26 ET | [10-Q](/filings/0001193125-26-212081.md) | Quarterly report, period 2026-03-31 | 0001193125-26-212081 |
| 2026-05-07 | 06:30 ET | [8-K](/filings/0001193125-26-210216.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-210216 |
| 2026-04-29 | 16:13 ET | [DEF 14A](/filings/0001193125-26-191601.md) | Proxy statement, period 2026-04-29 | 0001193125-26-191601 |
| 2026-04-17 | 16:30 ET | [8-K/A](/filings/0001193125-26-161620.md) | 5.02 Departure or appointment of officers or directors | 0001193125-26-161620 |
| 2026-02-24 | 16:14 ET | [10-K](/filings/0001193125-26-067009.md) | Annual report, period 2025-12-31 | 0001193125-26-067009 |
| 2026-02-17 | 17:00 ET | [8-K](/filings/0001193125-26-055003.md) | 5.02 Departure or appointment of officers or directors | 0001193125-26-055003 |
| 2026-02-06 | 06:30 ET | [8-K](/filings/0001193125-26-040253.md) | 1.01 Entry into a material agreement; 2.02 Results of operations; 2.03 New direct financial obligation; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-040253 |
| 2026-01-26 | 06:30 ET | [8-K](/filings/0001193125-26-021629.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-26-021629 |
| 2025-12-09 | 07:30 ET | [8-K](/filings/0001193125-25-311939.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-311939 |
| 2025-11-07 | 16:08 ET | [10-Q](/filings/0001193125-25-272335.md) | Quarterly report, period 2025-09-30 | 0001193125-25-272335 |
| 2025-11-07 | 06:30 ET | [8-K](/filings/0001193125-25-270945.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-270945 |
| 2025-08-06 | 16:06 ET | [10-Q](/filings/0000950170-25-103993.md) | Quarterly report, period 2025-06-30 | 0000950170-25-103993 |
| 2025-08-06 | 07:00 ET | [8-K](/filings/0001193125-25-173982.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-173982 |
| 2025-06-05 | 16:15 ET | [8-K](/filings/0000950170-25-082343.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results | 0000950170-25-082343 |
| 2025-05-21 | 08:35 ET | [8-K](/filings/0001193125-25-123670.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-123670 |
| 2025-05-07 | 16:04 ET | [10-Q](/filings/0000950170-25-065612.md) | Quarterly report, period 2025-03-31 | 0000950170-25-065612 |
| 2025-05-07 | 06:30 ET | [8-K](/filings/0001193125-25-114350.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-114350 |
| 2025-04-23 | 16:08 ET | [DEF 14A](/filings/0000950170-25-057344.md) | Proxy statement, period 2025-04-22 | 0000950170-25-057344 |
| 2025-02-24 | 16:06 ET | [10-K](/filings/0000950170-25-025606.md) | Annual report, period 2024-12-31 | 0000950170-25-025606 |
| 2025-02-06 | 06:30 ET | [8-K](/filings/0001193125-25-021304.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-25-021304 |
| 2025-01-27 | 16:30 ET | [8-K](/filings/0001193125-25-013383.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-013383 |
| 2024-11-06 | 16:17 ET | [10-Q](/filings/0000950170-24-122345.md) | Quarterly report, period 2024-09-30 | 0000950170-24-122345 |
| 2024-11-06 | 06:30 ET | [8-K](/filings/0001193125-24-251660.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-251660 |
| 2024-08-06 | 17:10 ET | [10-Q](/filings/0000950170-24-091990.md) | Quarterly report, period 2024-06-30 | 0000950170-24-091990 |
| 2024-08-06 | 06:30 ET | [8-K](/filings/0001193125-24-194351.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-194351 |
| 2024-07-19 | 16:30 ET | [8-K](/filings/0001193125-24-181672.md) | 5.03 Amendment to articles or bylaws; 9.01 Financial statements and exhibits | 0001193125-24-181672 |
| 2024-06-07 | 16:30 ET | [8-K](/filings/0001193125-24-157428.md) | 5.03 Amendment to articles or bylaws; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001193125-24-157428 |
| 2024-05-30 | 16:15 ET | [8-K/A](/filings/0001193125-24-150352.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001193125-24-150352 |
| 2024-05-07 | 16:42 ET | [10-Q](/filings/0000950170-24-054646.md) | Quarterly report, period 2024-03-31 | 0000950170-24-054646 |
| 2024-05-07 | 06:30 ET | [8-K](/filings/0001193125-24-132524.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-132524 |
| 2024-04-24 | 16:30 ET | [DEF 14A](/filings/0000950170-24-047633.md) | Proxy statement, period 2024-04-22 | 0000950170-24-047633 |
| 2024-04-05 | 16:30 ET | [8-K](/filings/0001193125-24-088517.md) | 5.02 Departure or appointment of officers or directors | 0001193125-24-088517 |
| 2024-02-26 | 08:01 ET | [8-K](/filings/0001193125-24-045398.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-045398 |
| 2024-02-22 | 17:22 ET | [10-K](/filings/0000950170-24-018935.md) | Annual report, period 2023-12-31 | 0000950170-24-018935 |
| 2024-01-31 | 06:31 ET | [8-K](/filings/0001193125-24-020160.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-24-020160 |
| 2024-01-19 | 16:11 ET | [8-K](/filings/0001193125-24-011252.md) | 5.02 Departure or appointment of officers or directors | 0001193125-24-011252 |
| 2023-11-09 | 16:15 ET | [8-K](/filings/0001193125-23-274514.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-23-274514 |
| 2023-10-25 | 16:42 ET | [10-Q](/filings/0000950170-23-055230.md) | Quarterly report, period 2023-09-30 | 0000950170-23-055230 |
| 2023-10-25 | 06:30 ET | [8-K](/filings/0001193125-23-262231.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-23-262231 |
| 2023-10-02 | 08:30 ET | [8-K](/filings/0001193125-23-248462.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-23-248462 |
| 2023-09-14 | 06:30 ET | [8-K](/filings/0001193125-23-234922.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-23-234922 |
| 2023-08-09 | 16:18 ET | [8-K](/filings/0001193125-23-207377.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001193125-23-207377 |

Page 1 of 6. [Older](/companies/mktx/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 29, 2026, 16:06 ET. No prices; not investment advice.