GAO ZHENTAO Chief Executive Officer | Purchase at price 3.79 - 4.30 per share. | Direct | 153,181 | Jun 13, 2011 |
HU GANG Chief Financial Officer | Purchase at price 3.70 - 4.20 per share. | Direct | 92,752 | Jun 13, 2011 |
HUETT GREG Director | Purchase at price 5.25 per share. | Direct | 26,250 | Jun 6, 2011 |
HUETT GREG Director | Purchase at price 5.17 per share. | Direct | 25,850 | May 31, 2011 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Sale at price 8.50 - 9.15 per share. | Indirect | 279,875 | Dec 15, 2010 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Purchase at price 7.89 - 9.86 per share. | Indirect | 1,018,799 | Nov 9, 2010 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Sale at price 7.40 - 8.05 per share. | Indirect | 1,521,174 | Nov 1, 2010 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Purchase at price 7.00 - 9.37 per share. | Indirect | 5,776,102 | Oct 29, 2010 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Purchase at price 6.71 - 9.37 per share. | Indirect | 1,834,953 | Aug 2, 2010 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Sale at price 7.53 per share. | Indirect | 225,870 | Jun 29, 2010 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Sale at price 8.02 - 8.96 per share. | Indirect | 898,775 | Jun 29, 2010 |
ARDSLEY ADVISORY PARTNERS, L.P. Beneficial Owner of more than 10% of a Class of Security | Purchase at price 7.75 - 8.59 per share. | Indirect | 2,071,512 | Jun 25, 2010 |
KITT BARRY M Beneficial Owner of more than 10% of a Class of Security | Sale at price 3.73 per share. | Indirect | 1,490,000 | Jun 29, 2009 |
BLACK RIVER SMALL CAPITALIZATION FUND LTD Beneficial Owner of more than 10% of a Class of Security | Sale at price 3.73 per share. | Direct | 931,250 | Jun 29, 2009 |
BLACK RIVER SMALL CAPITALIZATION FUND LTD Beneficial Owner of more than 10% of a Class of Security | Sale at price 3.73 per share. | Direct | 931,250 | Jun 29, 2009 |
KITT BARRY M Beneficial Owner of more than 10% of a Class of Security | Sale at price 3.70 per share. | Indirect | 163,923 | Jun 18, 2009 |
BLACK RIVER COMMODITY SELECT FUND LTD Beneficial Owner of more than 10% of a Class of Security | Sale at price 3.51 per share. | Direct | 1,170,078 | Jun 18, 2009 |
BLACK RIVER SMALL CAPITALIZATION FUND LTD Beneficial Owner of more than 10% of a Class of Security | Sale at price 3.51 per share. | Direct | 525,998 | Jun 18, 2009 |
KITT BARRY M Beneficial Owner of more than 10% of a Class of Security | Sale at price 3.75 - 4.00 per share. | Indirect | 1,631,085 | Jun 9, 2009 |