| Date Filed | Type | Description | Filer | View |
| 02/14/19 | SC 13G/A | An amendment to the SC 13G filing | |  |
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| 02/13/19 | SC 13G/A | An amendment to the SC 13G filing | | |
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| 02/08/19 | 3 | Initial filing by director officer or owner of more than ten percent. | Moorehead Lewis W. | |
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| 02/04/19 | 8-K | Report of unscheduled material events or corporate event | | |
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| 02/04/19 | SC 13G/A | An amendment to the SC 13G filing | | |
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| 01/30/19 | 25-NSE | 25-NSE | | |
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| 01/28/19 | SC 13G/A | An amendment to the SC 13G filing | | |
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| 01/25/19 | 8-K | Report of unscheduled material events or corporate event | | |
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| 01/23/19 | 4 | Statement of changes in beneficial ownership of securities | B. RILEY CAPITAL MANAGEMENT, LLC | |
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| 01/17/19 | 4 | Statement of changes in beneficial ownership of securities | B. RILEY CAPITAL MANAGEMENT, LLC | |
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| 01/15/19 | 8-K | Report of unscheduled material events or corporate event | | |
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| 01/11/19 | 4 | Statement of changes in beneficial ownership of securities | B. RILEY CAPITAL MANAGEMENT, LLC | |
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| 01/10/19 | SC 13G | A statement of beneficial ownership of common stock by certain persons | | |
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| 01/03/19 | 4 | Statement of changes in beneficial ownership of securities | B. RILEY CAPITAL MANAGEMENT, LLC | |
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| 12/31/18 | SC 13G | A statement of beneficial ownership of common stock by certain persons | | |
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| 12/28/18 | 3 | Initial filing by director officer or owner of more than ten percent. | B. RILEY CAPITAL MANAGEMENT, LLC | |
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| 12/28/18 | 4 | Statement of changes in beneficial ownership of securities | B. RILEY CAPITAL MANAGEMENT, LLC | |
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| 12/28/18 | 8-K | Report of unscheduled material events or corporate event | | |
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| 12/28/18 | 8-K | Report of unscheduled material events or corporate event | | |
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| 12/10/18 | SC 13G | A statement of beneficial ownership of common stock by certain persons | | |
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