MarketAxess Holdings Inc.SEC Filings
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All SEC filings by MarketAxess Holdings Inc. (MKTX) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.
Financials
| 10-Q | Quarterly report | View Diff | Aug 7, 2026 | |
| 10-Q | Quarterly report | View Diff | May 7, 2026 | |
| ARS | Annual report to shareholders | Apr 29, 2026 | ||
| 10-K | Annual report | View Diff | Feb 24, 2026 | |
| 10-Q | Quarterly report | View Diff | Nov 7, 2025 | |
| 10-Q | Quarterly report | View Diff | Aug 6, 2025 | |
| 10-Q | Quarterly report | View Diff | May 7, 2025 | |
| ARS | Annual report to shareholders | Apr 23, 2025 | ||
| 10-K | Annual report | View Diff | Feb 24, 2025 | |
| 10-Q | Quarterly report | View Diff | Nov 6, 2024 |
Events
| 8-K | Marketaxess Reports Second Quarter 2026 Financial Results | Jul 30, 2026 | ||
| 8-K | Intercontinental Exchange to Acquire Marketaxess, Creating a Premier Fixed Income Marketplace | Jul 30, 2026 | ||
| 8-K | Current report | Jun 10, 2026 | ||
| 8-K | Marketaxess Reports First Quarter 2026 Financial Results | May 7, 2026 | ||
| 8-K/A | Departure of Directors or Certain Officers | Apr 17, 2026 | ||
| 8-K | Departure of Directors or Certain Officers | Feb 17, 2026 | ||
| 8-K | Marketaxess Reports Fourth Quarter and Full Year 2025 Financial Results | Feb 6, 2026 | ||
| 8-K | Douglas Cifu and Kenneth Schiciano Elected to Marketaxess Board of Directors | Jan 26, 2026 | ||
| 8-K | Marketaxess Announces Medium-Term Financial Targets1 | Dec 9, 2025 | ||
| 8-K | Marketaxess Reports Third Quarter 2025 Financial Results | Nov 7, 2025 |
Registrations and Prospectuses
| S-8 | Registration of securities for employees | Jun 8, 2022 | ||
| S-8 | Registration of securities for employees | Jun 10, 2020 | ||
| S-8 | Registration of securities for employees | Jul 24, 2015 | ||
| 424B4 | Prospectus supplement with pricing info | Feb 23, 2012 | ||
| FWP | Free writing prospectus | Feb 23, 2012 | ||
| FWP | Free writing prospectus | Feb 22, 2012 | ||
| 424B3 | Prospectus supplement | Feb 21, 2012 | ||
| S-3ASR | Automatic shelf registration | Feb 21, 2012 | ||
| 424B3 | Prospectus supplement | Feb 18, 2011 | ||
| S-3 | Shelf registration | Nov 24, 2008 |
Proxies
| PREM14A | Merger / Business Combination | Sep 4, 2026 | ||
| DFAN14A | Additional proxy materials by non-management | Jul 30, 2026 | ||
| DEFA14A | Additional proxy soliciting materials | Jul 30, 2026 | ||
| DEFA14A | Additional proxy soliciting materials | Jul 30, 2026 | ||
| DEFA14A | Additional proxy soliciting materials | Apr 29, 2026 | ||
| DEF 14A | Definitive proxy | View Diff | Apr 29, 2026 | |
| DEFA14A | Additional proxy soliciting materials | Apr 23, 2025 | ||
| DEF 14A | Definitive proxy | View Diff | Apr 23, 2025 | |
| DEFA14A | Additional proxy soliciting materials | Apr 24, 2024 | ||
| DEF 14A | Definitive proxy | View Diff | Apr 24, 2024 |
Other
| CT ORDER | Confidential treatment order | Sep 5, 2017 | ||
| UPLOAD | Letter from SEC | Jan 21, 2015 | ||
| CORRESP | Correspondence with SEC | Jan 13, 2015 | ||
| UPLOAD | Letter from SEC | Dec 29, 2014 | ||
| UPLOAD | Letter from SEC | Oct 22, 2013 | ||
| CORRESP | Correspondence with SEC | Oct 11, 2013 | ||
| UPLOAD | Letter from SEC | Oct 1, 2013 | ||
| UPLOAD | Letter from SEC | Aug 20, 2012 | ||
| CORRESP | Correspondence with SEC | Aug 1, 2012 | ||
| UPLOAD | Letter from SEC | Jul 23, 2012 |
Ownership
| SC 13G/A | Beneficial ownership report | Aug 14, 2026 | ||
| 4 | Portney Emily Hope | Aug 13, 2026 | ||
| SC 13G/A | Beneficial ownership report | Aug 13, 2026 | ||
| 4 | Pintoff Scott | Aug 10, 2026 | ||
| 144 | Notice of proposed sale of securities | Aug 10, 2026 | ||
| 4 | Chwick Jane | Aug 7, 2026 | ||
| SC 13G/A | Beneficial ownership report | Aug 6, 2026 | ||
| 4 | Pintoff Scott | Jul 10, 2026 | ||
| 4 | Hernandez Carlos Mauricio | Jun 18, 2026 | ||
| 4 | Altobello Nancy A. | Jun 12, 2026 |