| SC 13D/A | 2014-11-20 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure Co LLC | 4,597,983 | 6.5% | EDGAR |
| SC 13D/A | 2014-04-24 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure Co LLC | 3,337,842 | 5.9% | EDGAR |
| SC 13G/A | 2014-02-25 | Senator Investment Group LP | Macquarie Infrastructure Co LLC | 3,575,400 | 6.4% | EDGAR |
| SC 13G/A | 2014-02-14 | SAC Capital Advisors LP | Macquarie Infrastructure Co LLC | 805,400 | 1.4% | EDGAR |
| SC 13G | 2014-02-14 | MARCATO CAPITAL MANAGEMENT LP | Macquarie Infrastructure Co LLC | 3,583,472 | 6.4% | EDGAR |
| SC 13G/A | 2014-02-13 | MSDC Management, L.P. | Macquarie Infrastructure Co LLC | 3,779,972 | 6.8% | EDGAR |
| SC 13D/A | 2013-10-25 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure CO LLC | 2,738,873 | 5.1% | EDGAR |
| SC 13D/A | 2013-09-16 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure CO LLC | 3,738,873 | 7.0% | EDGAR |
| SC 13G | 2013-05-30 | SAC Capital Advisors LP | Macquarie Infrastructure CO LLC | 2,104,931 | 4.0% | EDGAR |
| SC 13D/A | 2013-05-14 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure CO LLC | 2,722,958 | 5.2% | EDGAR |
| SC 13D/A | 2013-03-21 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure CO LLC | 5,809,785 | 12.0% | EDGAR |
| SC 13D/A | 2013-03-11 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure CO LLC | 4,949,401 | 10.4% | EDGAR |
| SC 13G/A | 2013-02-14 | Senator Investment Group LP | Macquarie Infrastructure CO LLC | 4,000,000 | 8.6% | EDGAR |
| SC 13D/A | 2012-12-21 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure CO LLC | 5,480,929 | 11.6% | EDGAR |
| SC 13G/A | 2012-06-08 | MSDC Management, L.P. | Macquarie Infrastructure CO LLC | 3,094,964 | - | EDGAR |
| SC 13G/A | 2012-02-14 | AXIAL CAPITAL MANAGEMENT, LLC | Macquarie Infrastructure CO LLC | 1,207,127 | 2.6% | EDGAR |
| SC 13G/A | 2012-02-14 | Senator Investment Group LP | Macquarie Infrastructure CO LLC | 3,901,100 | 8.4% | EDGAR |
| SC 13G/A | 2012-02-14 | MSD CAPITAL L P | Macquarie Infrastructure CO LLC | 3,094,964 | 6.7% | EDGAR |
| SC 13D/A | 2012-01-18 | Macquarie Infrastructure Management (USA) INC | Macquarie Infrastructure CO LLC | 4,388,345 | 9.5% | EDGAR |
| SC 13G/A | 2011-02-14 | AXIAL CAPITAL MANAGEMENT, LLC | Macquarie Infrastructure CO LLC | 2,772,482 | 6.1% | EDGAR |