| Filing |
Description |
Date Filed  |
Size |
View |
|
| SC 13D/A |
amended general statement of beneficial ownership |
Jan 10, 2012 |
63.5 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Jan 9, 2012 |
24.0 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Dec 21, 2011 |
23.8 KB |
|
|
| 8-K |
current report |
Dec 20, 2011 |
22.3 KB |
|
|
| SC 13D/A |
amended general statement of beneficial ownership |
Dec 15, 2011 |
62.1 KB |
|
|
| 8-K |
current report |
Dec 15, 2011 |
20.9 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Dec 14, 2011 |
23.8 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Dec 13, 2011 |
23.8 KB |
|
|
| 4 |
zhao, yang |
Dec 12, 2011 |
25.4 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Dec 12, 2011 |
24.0 KB |
|
|
| 4 |
zhao, yang |
Dec 8, 2011 |
25.5 KB |
|
|
| 4 |
zhao, yang |
Dec 6, 2011 |
25.4 KB |
|
|
| 4 |
zhao, yang |
Dec 2, 2011 |
25.1 KB |
|
|
| 4 |
zhao, yang |
Nov 30, 2011 |
25.5 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Nov 30, 2011 |
23.8 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Nov 29, 2011 |
24.3 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Nov 28, 2011 |
23.8 KB |
|
|
| S-8 |
registration statement |
Nov 14, 2011 |
136.8 KB |
|
|
| 10-Q |
quarterly report |
Nov 14, 2011 |
468.1 KB |
|
|
| 4 |
seligman, spectrum focus (master) fund |
Nov 9, 2011 |
23.8 KB |
|
|
|
|
