| Date | Acquired | Amount |
|---|---|---|
| Sep 07, 2017 |
|
Undisclosed amount |
| Jul 14, 2017 |
|
$ 5,000,000 |
| Jun 02, 2016 |
|
Undisclosed amount |
| Oct 16, 2014 |
|
Undisclosed amount |
| Feb 06, 2013 |
|
£ 487,000,000 |
| Mar 10, 2006 |
|
Undisclosed amount |
