| SC 13G | 2010-02-16 | FMR LLC | CME GROUP INC. | 4,078,986 | 6.1% | EDGAR |
| SC 13G/A | 2010-02-12 | AXA FINANCIAL INC | CME GROUP INC. | 2,328,182 | 3.5% | EDGAR |
| SC 13G | 2010-01-29 | BlackRock Inc. | CME GROUP INC. | 3,772,346 | 6.9% | EDGAR |
| SC 13G/A | 2009-02-13 | AXA FINANCIAL INC | CME GROUP INC. | 5,586,045 | 8.3% | EDGAR |
| SC 13G/A | 2008-04-10 | AXA FINANCIAL INC | CME GROUP INC. | 5,995,567 | 11.0% | EDGAR |
| SC 13G | 2008-02-14 | AXA FINANCIAL INC | CME GROUP INC. | 3,229,518 | 6.1% | EDGAR |
| SC 13G/A | 2008-02-13 | SANDS CAPITAL MANAGEMENT, LLC | CME GROUP INC. | 1,384,759 | 2.6% | EDGAR |
| SC 13G/A | 2007-04-10 | AXA FINANCIAL INC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 4,080,051 | 11.7% | EDGAR |
| SC 13G | 2007-02-13 | AXA FINANCIAL INC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 2,211,536 | 6.4% | EDGAR |
| SC 13G/A | 2006-09-08 | MARSICO CAPITAL MANAGEMENT LLC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 1,255 | 0.0% | EDGAR |
| SC 13G/A | 2006-07-10 | MARSICO CAPITAL MANAGEMENT LLC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 2,830,957 | 8.2% | EDGAR |
| SC 13G/A | 2006-02-13 | MARSICO CAPITAL MANAGEMENT LLC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 4,720,798 | 13.7% | EDGAR |
| SC 13G | 2006-02-10 | SANDS CAPITAL MANAGEMENT, LLC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 1,909,129 | 5.5% | EDGAR |
| SC 13G/A | 2006-02-01 | WADDELL & REED FINANCIAL INC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 438,900 | 1.3% | EDGAR |
| SC 13G/A | 2005-07-08 | MARSICO CAPITAL MANAGEMENT LLC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 3,522,971 | 10.3% | EDGAR |
| SC 13G | 2005-02-11 | MARSICO CAPITAL MANAGEMENT LLC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 2,806,990 | 8.2% | EDGAR |
| SC 13G/A | 2005-02-08 | WADDELL & REED FINANCIAL INC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 2,023,939 | 5.9% | EDGAR |
| SC 13G/A | 2004-07-19 | AMERICAN CENTURY INVESTMENT MANAGEMENT INC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | - | - | EDGAR |
| SC 13G | 2004-07-09 | AMERICAN CENTURY INVESTMENT MANAGEMENT INC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 912,580 | - | EDGAR |
| SC 13G | 2004-01-30 | WADDELL & REED FINANCIAL INC | CHICAGO MERCANTILE EXCHANGE HOLDINGS INC | 202,684 | 0.6% | EDGAR |