| Date | Acquired | Amount |
|---|---|---|
| Oct 26, 2017 |
|
Undisclosed amount |
| Sep 25, 2017 |
|
Undisclosed amount |
| Sep 05, 2017 |
|
Undisclosed amount |
| Jun 28, 2017 |
|
$ 2,750,000 |
| Aug 16, 2016 |
|
Undisclosed amount |
| Feb 10, 2016 |
|
Undisclosed amount |
| May 31, 2011 |
|
Undisclosed amount |
| Apr 29, 2011 |
|
Undisclosed amount |
| Nov 04, 2010 |
|
Undisclosed amount |
| Oct 01, 2010 |
|
Undisclosed amount |
| Jan 25, 2010 |
|
Undisclosed amount |
| Dec 08, 2009 |
|
Undisclosed amount |
| Feb 01, 2009 |
|
Undisclosed amount |
| Apr 04, 2008 |
|
Undisclosed amount |
