| Date | Acquired | Amount |
|---|---|---|
| Aug 01, 2017 |
|
Undisclosed amount |
| Jul 04, 2017 |
|
Undisclosed amount |
| Feb 14, 2017 |
|
Undisclosed amount |
| Jan 24, 2017 |
|
Undisclosed amount |
| Mar 10, 2016 |
|
Undisclosed amount |
| Feb 11, 2015 |
|
$ 2,000,000 |
