| Date | Acquired | Amount |
|---|---|---|
| Jun 14, 2016 |
|
Undisclosed amount |
| Jan 13, 2015 |
|
Undisclosed amount |
| Apr 17, 2014 |
|
Undisclosed amount |
| Apr 01, 2013 |
|
$ 1,000,000 |
| Nov 26, 2012 |
|
Undisclosed amount |
| Aug 16, 2012 |
|
$ 115,000,000 |
| May 08, 2012 |
|
Undisclosed amount |
| Sep 27, 2005 |
|
Undisclosed amount |
| Sep 30, 2004 |
|
£ 166,000,000 |
| Sep 22, 2004 |
|
$ 40,300,000 |
