| Date | Name | Title | Type | Security | Shares | Price | Value | Ownership | Reported |
| 12/03/2012 | Riley Jr. Gilbert N | CTO and VP of Res. and Dev. | Sale | Common Stock, $0.001 par value | 20k | $0.08 | $1.6k | By The Yusun Kim Riley Revocable Trust | 12/03/2012 |
| 11/20/2012 | Johnson Robert Joseph | VP and GM, Energy Sol'ns Group | Sale | Common Stock | 1.6k | $0.09 | $140.7 | | 11/19/2012 |
| 11/20/2012 | Pyenson Eric J. | VP and General Counsel | Sale | Common Stock | 1.6k | $0.09 | $140.7 | | 11/19/2012 |
| 11/20/2012 | Forcier Jason | VP, Auto Solutions | Sale | Common Stock | 1.6k | $0.09 | $139.5 | | 11/19/2012 |
| 11/19/2012 | Johnson Robert Joseph | VP and GM, Energy Sol'ns Group | Sale | Common Stock | 1.2k | $0.09 | $109.5 | | 11/19/2012 |
| 11/19/2012 | Pyenson Eric J. | VP and General Counsel | Sale | Common Stock | 1.2k | $0.09 | $109.5 | | 11/19/2012 |
| 11/19/2012 | Forcier Jason | VP, Auto Solutions | Sale | Common Stock | 743 | $0.09 | $65.8 | | 11/19/2012 |
| 11/01/2012 | Riley Jr. Gilbert N | CTO and VP of Res. and Dev. | Sale | Common Stock, $0.001 par value | 20k | $0.14 | $2.8k | By The Yusun Kim Riley Revocable Trust | 11/01/2012 |
| 10/01/2012 | Riley Jr. Gilbert N | CTO and VP of Res. and Dev. | Sale | Common Stock, $0.001 par value | 20k | $0.25 | $5.1k | By The Yusun Kim Riley Revocable Trust | 10/01/2012 |
| 09/10/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 398.7k | $0.22 | $87.7k | By North Bridge Venture Partners IV-A, L.P. | 09/07/2012 |
| 09/10/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 189.2k | $0.22 | $41.6k | By North Bridge Venture Partners IV-B, L.P. | 09/07/2012 |
| 09/10/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 564.7k | $0.22 | $124.2k | By North Bridge Venture Partners V-A, L.P. | 09/07/2012 |
| 09/10/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 276.9k | $0.22 | $60.9k | By North Bridge Venture Partners V-B, L.P. | 09/07/2012 |
| 09/07/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 264.8k | $0.20 | $52.4k | By North Bridge Venture Partners IV-B, L.P. | 09/07/2012 |
| 09/07/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 790.1k | $0.20 | $156.4k | By North Bridge Venture Partners V-A, L.P. | 09/07/2012 |
| 09/07/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 387.4k | $0.20 | $76.7k | By North Bridge Venture Partners V-B, L.P. | 09/07/2012 |
| 09/07/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 557.8k | $0.20 | $110.4k | By North Bridge Venture Partners IV-A, L.P. | 09/07/2012 |
| 09/06/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 348.8k | $0.20 | $70.4k | By North Bridge Venture Partners IV-A, L.P. | 08/29/2012 |
| 09/06/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 165.6k | $0.20 | $33.4k | By North Bridge Venture Partners IV-B, L.P. | 08/29/2012 |
| 09/06/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 494k | $0.20 | $99.7k | By North Bridge Venture Partners V-A, L.P. | 08/29/2012 |
| 09/06/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 242.2k | $0.20 | $48.9k | By North Bridge Venture Partners V-B, L.P. | 08/29/2012 |
| 09/05/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 395k | $0.22 | $87.3k | By North Bridge Venture Partners V-A, L.P. | 08/29/2012 |
| 09/05/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 193.7k | $0.22 | $42.8k | By North Bridge Venture Partners V-B, L.P. | 08/29/2012 |
| 09/05/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 132.4k | $0.22 | $29.3k | By North Bridge Venture Partners IV-B, L.P. | 08/29/2012 |
| 09/05/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 278.9k | $0.22 | $61.6k | By North Bridge Venture Partners IV-A, L.P. | 08/29/2012 |
| 09/04/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 98.8k | $0.26 | $25.7k | By North Bridge Venture Partners V-A, L.P. | 08/29/2012 |
| 09/04/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 48.4k | $0.26 | $12.6k | By North Bridge Venture Partners V-B, L.P. | 08/29/2012 |
| 09/04/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 69.7k | $0.26 | $18.1k | By North Bridge Venture Partners IV-A, L.P. | 08/29/2012 |
| 09/04/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 33.1k | $0.26 | $8.6k | By North Bridge Venture Partners IV-B, L.P. | 08/29/2012 |
| 09/04/2012 | Riley Jr. Gilbert N | CTO and VP of Res. and Dev. | Sale | Common Stock, $0.001 par value | 20k | $0.26 | $5.1k | By The Yusun Kim Riley Revocable Trust | 09/04/2012 |
| 08/31/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 138.5k | $0.26 | $36k | By North Bridge Venture Partners IV-A, L.P. | 08/29/2012 |
| 08/31/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 65.7k | $0.26 | $17.1k | By North Bridge Venture Partners IV-B, L.P. | 08/29/2012 |
| 08/31/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 196.1k | $0.26 | $51k | By North Bridge Venture Partners V-A, L.P. | 08/29/2012 |
| 08/31/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 96.2k | $0.26 | $25k | By North Bridge Venture Partners V-B, L.P. | 08/29/2012 |
| 08/30/2012 | McCarthy Jeffrey P | Director | Sale | Common Stock, $0.001 par value | 474.1k | $0.26 | $123.6k | By North Bridge Venture Partners IV-A, L.P. | 08/29/2012 |
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