| Filed On | Filing |
|---|---|
| 13 Mar 2019 | MACKAY SHIELDS LLC |
| 14 Feb 2019 | SC 13G/A |
| 30 Jan 2019 | OPPENHEIMER & CO INC. |
| 10 Jan 2019 | MACKAY SHIELDS LLC |
| 13 Feb 2018 | OPPENHEIMER & CO INC. |
| 11 Jan 2018 | MACKAY SHIELDS LLC |
| 10 Jan 2018 | SC 13G/A |
| 16 Aug 2017 | OPPENHEIMER & CO INC. |
| 12 Jan 2017 | SCHEDULE 13G AMENDMENT |
| 10 Jan 2017 | MACKAY SHIELDS LLC |
| 10 Jan 2017 | MACKAY SHIELDS LLC |
| 06 Jan 2017 | MACKAY SHIELDS LLC |
| 07 Aug 2015 | SC 13G/A |
| 17 Feb 2015 | AMENDMENT NO. 2 TO SCHEDULE 13G |
| 22 Jan 2015 | SC 13G/A |
| 14 Feb 2014 | AMENDMENT NO. 1 TO SCHEDULE 13G |
| 11 Feb 2014 | SC 13G/A |
| 30 Jan 2014 | SC 13G/A |
| 11 Feb 2013 | SC 13G/A |
| 08 Feb 2013 | SC 13G/A |
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