EDGAR Filing Documents for 0000950123-11-040161

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

SEC Accession No. 0000950123-11-040161

Filing Date

2011-04-27

Accepted

2011-04-27 17:11:43

Documents

Effectiveness Date

2011-04-27

Document Format Files

Seq	Description	Document	Type	Size
1	DEFA14A	y90924adefa14a.htm	DEFA14A	32476
2	GRAPHIC	y90924ay9092401a.gif	GRAPHIC	336
3	GRAPHIC	y90924ay9092402a.gif	GRAPHIC	331
4	GRAPHIC	y90924ay9092403.gif	GRAPHIC	323
5	GRAPHIC	y90924ay9092404.gif	GRAPHIC	331
	Complete submission text file	0000950123-11-040161.txt		35985

Mailing Address 140 BROADWAY 42ND FLOOR NEW YORK NY 10005

Business Address 140 BROADWAY 42ND FLOOR NEW YORK NY 10005 212-831-6000

MARKETAXESS HOLDINGS INC (Filer) CIK: 0001278021 (see all company filings)

IRS No.: 522230784 | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-34091 | Film No.: 11784486
SIC: 6211 Security Brokers, Dealers & Flotation Companies