MKTX SEC Filings: 8-K, 10-Q, S-3 & 424B – MarketAxess

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 6, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 7, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

May 7, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Feb 24, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Nov 7, 2025

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 6, 2025

News

TYPE

HEADLINE

FILED AT

8-K

MarketAxess Stockholders Approve Merger Agreement with Intercontinental Exchange

Oct 29, 2026

8-K

MarketAxess Files Form 8-K Disclosing Supplemental Information Regarding Pending Merger with Intercontinental Exchange

Oct 23, 2026

8-K

MarketAxess Reports Third Quarter 2026 Financial Results and Pending Merger with Intercontinental Exchange, Inc.

Oct 23, 2026

8-K

MarketAxess Announces Early Termination of HSR Act Waiting Period for Proposed Merger with Intercontinental Exchange

Oct 22, 2026

8-K

MarketAxess and Intercontinental Exchange Refile HSR Notification for Proposed Merger

Sep 29, 2026

8-K

MarketAxess Reports Second Quarter 2026 Financial Results and Announces Definitive Agreement to be Acquired by Intercontinental Exchange (ICE)

Jul 30, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B4

Form 424B4 - Prospectus [Rule 424(b)(4)]

Feb 23, 2012

424B3

Form 424B3 - Prospectus [Rule 424(b)(3)]

Feb 21, 2012

424B3

Form 424B3 - Prospectus [Rule 424(b)(3)]

Feb 18, 2011

424B4

Form 424B4 - Prospectus [Rule 424(b)(4)]

Nov 5, 2004

Registrations

TYPE

HEADLINE

FILED AT

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Jun 8, 2022

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Jun 10, 2020

S-8

Form S-8 - Securities to be offered to employees in employee benefit plans

Jul 24, 2015

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Feb 23, 2012

FWP

Form FWP - Filing under Securities Act Rules 163/433 of free writing prospectuses

Feb 21, 2012

S-3ASR

Form S-3ASR - Automatic shelf registration statement of securities of well-known seasoned issuers

Feb 21, 2012

Proxies

TYPE

HEADLINE

FILED AT

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Sep 29, 2026

DEFM14A

Form DEFM14A - Definitive proxy statement relating to merger or acquisition

Sep 18, 2026

PREM14A

Form PREM14A - Preliminary proxy statements relating to merger or acquisition

Sep 4, 2026

DFAN14A

Form DFAN14A - Additional definitive proxy soliciting materials filed by non-management and Rule 14(a)(12) material

Jul 30, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Jul 30, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Jul 30, 2026

Ownerships

TYPE

HEADLINE

FILED AT

SCHEDULE 13G/A

PRIMECAP MANAGEMENT CO/CA/ (Filed by)

Nov 5, 2026

Pintoff Scott (Reporting)

Oct 13, 2026

Pintoff Scott (Reporting)

Sep 11, 2026

Cruger William Frank Jr. (Reporting)

Sep 11, 2026

144

Form 144 - Report of proposed sale of securities

Sep 10, 2026

SCHEDULE 13G/A

North Reef Capital Management LP (Filed by)

Aug 14, 2026

Other

TYPE

HEADLINE

FILED AT

MarketAxess Holdings Inc. MKTX · SEC Filings