| Arosa Capital Management LP | 4,218,465 | $16,156,721 | 5.02% |
|---|
| Global Alpha Capital Management Ltd. | 6,989,276 | $26,768,927 | 2.69% |
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| ECP ControlCo, LLC | 2,594,759 | $11,053,673 | 2.53% |
|---|
| Clear Sky Advisers, LLC | 780,469 | $2,989,196 | 1.56% |
|---|
| Trellus Management Company, LLC | 190,000 | $727,700 | 1.00% |
|---|
| SIR Capital Management, L.P. | 1,700,821 | $6,514,144 | 0.77% |
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| WHITE PINE CAPITAL LLC | 322,791 | $1,236,290 | 0.50% |
|---|
| Yaupon Capital Management LP | 1,269,162 | $4,860,890 | 0.45% |
|---|
| ARDSLEY ADVISORY PARTNERS LP | 500,000 | $1,915,000 | 0.43% |
|---|
| Aventail Capital Group, LP | 1,209,593 | $4,632,741 | 0.32% |
|---|
| CONNORS INVESTOR SERVICES INC | 658,832 | $2,517 | 0.31% |
|---|
| RICE HALL JAMES & ASSOCIATES, LLC | 1,169,170 | $4,477,921 | 0.28% |
|---|
| Manatuck Hill Partners, LLC | 145,000 | $555,350 | 0.25% |
|---|
| Grantham, Mayo, Van Otterloo & Co. LLC | 13,753,370 | $52,675,407 | 0.25% |
|---|
| GMT CAPITAL CORP | 1,090,378 | $4,176,148 | 0.16% |
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| EagleClaw Capital Managment, LLC | 168,425 | $645,068 | 0.15% |
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| Nebula Research & Development LLC | 63,182 | $241,987 | 0.13% |
|---|
| Moors & Cabot, Inc. | 450,328 | $1,724,756 | 0.12% |
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| Cito Capital Group, LLC | 50,000 | $192 | 0.09% |
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| PDT Partners, LLC | 175,228 | $671,123 | 0.08% |
|---|