| Date | Acquired | Amount |
|---|---|---|
| Jul 07, 2017 |
|
$ 4,900,000,000 |
| Feb 08, 2017 |
|
$ 144,000,000 |
| Jun 17, 2016 |
|
Undisclosed amount |
| Feb 17, 2015 |
|
$ 1,880,000,000 |
