| Date | Acquired | Amount |
|---|---|---|
| Nov 01, 2017 |
|
Undisclosed amount |
| Nov 24, 2016 |
|
£ 1,400,000,000 |
| Jul 23, 2015 |
|
$ 16,000,000 |
| Jan 07, 2015 |
|
$ 160,000,000 |
| Jan 07, 2014 |
|
Undisclosed amount |
