| Date Filed | Type | Description |
| 02/12/2016 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 6.2% stake in Numerex Corp. |
| 01/27/2016 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 7.5% stake in CARTESIAN, INC. |
| 02/23/2015 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 7.1% stake in CARTESIAN, INC. |
| 02/23/2015 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 6.9% stake in Numerex Corp. |
| 09/15/2014 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 2.6% stake in Meru Networks, Inc. |
| 08/18/2014 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 0% stake in PLX Technology, Inc. |
| 06/26/2014 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 9.8% stake in PLX Technology, Inc. |
| 02/14/2014 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 6.6% stake in Numerex Corp. |
| 02/14/2014 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 7.7% stake in The Management Network Group, Inc. |
| 11/07/2013 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 9.5% stake in PLX Technology, Inc. |
| 09/11/2013 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 5.7% stake in Sigma Designs, Inc. |
| 06/27/2013 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 8.9% stake in PLX Technology, Inc. |
| 04/19/2013 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 6.5% stake in PLX Technology, Inc. |
| 08/13/2012 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 5.8% stake in Sigma Designs, Inc. |
| 08/03/2012 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 5.8% stake in Sigma Designs, Inc. |
| 04/09/2012 |
SC 13D/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 6.9% stake in Sigma Designs, Inc. |
| 03/16/2012 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 8.4% stake in Numerex Corp. |
| 03/15/2011 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 03/01/2011 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 5.8% stake in Advanced Photonix, Inc. |
| 03/01/2011 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 7.3% stake in The Management Network Group, Inc. |
| 03/01/2011 |
SC 13G/A
| NUMEREX CORP reports a 9.4% stake in Numerex Corp. |
| 02/24/2011 |
SC 13G/A
| NUMEREX CORP reports a 5% stake in Numerex Corp. |
| 02/24/2011 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 5.8% stake in The Management Network Group, Inc. |
| 02/17/2011 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 4.9% stake in Advanced Photonix, Inc. |
| 07/29/2010 |
SC 13G/A
| NUMEREX CORP reports a 9.3% stake in Numerex Corp. |
| 07/09/2010 |
SC 13G/A
| ADVANCED PHOTONIX INC reports a 7.7% stake in Advanced Photonix, Inc. |
| 04/19/2010 |
SC 13G
| ADVANCED PHOTONIX INC reports a 9.8% stake in Advanced Photonix, Inc. |
| 03/03/2010 |
SC 13G/A
| ADVANCED PHOTONIX INC reports a 11.7% stake in Advanced Photonix, Inc. |
| 02/25/2010 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 4% stake in Interlink Electronics, Inc. |
| 11/19/2009 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 8.6% stake in ENDWAVE CORPORATION |
| 10/07/2009 |
SC 13G
| POTOMAC CAPITAL MANAGEMENT LLC reports a 5.5% stake in NEWTEK BUSINESS SERVICES, INC. |
| 09/28/2009 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 6.4% stake in The Management Network Group, Inc. |
| 08/20/2009 |
SC 13G/A
| POTOMAC CAPITAL MANAGEMENT LLC reports a 6.4% stake in The Management Network Group, Inc. |
| 08/11/2009 |
SC 13G/A
| Form SC 13G/A -- Statement of acquisition of beneficial ownership by individuals [amend] |
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