| Date | Acquired | Amount |
|---|---|---|
| Nov 15, 2017 |
|
Undisclosed amount |
| Nov 03, 2017 |
|
Undisclosed amount |
| Aug 28, 2017 |
|
£ 2,400,000,000 |
| Apr 16, 2017 |
|
Undisclosed amount |
| Apr 27, 2016 |
|
$ 2,200,000,000 |
| Sep 02, 2015 |
|
Undisclosed amount |
| Mar 16, 2015 |
|
$ 4,000,000,000 |
| Jul 29, 2014 |
|
Undisclosed amount |
| Jul 09, 2012 |
|
Undisclosed amount |
| Oct 10, 2003 |
|
Undisclosed amount |
