| Altai Capital Management | 2,300,000 | $40,250 | 34.40% |
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| Legion Partners Asset Management, LLC | 3,476,631 | $60,841,043 | 17.89% |
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| Washington Harbour Partners LP | 308,773 | $5,403,528 | 10.31% |
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| B. Riley Asset Management, LLC | 254,291 | $4,450,093 | 1.84% |
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| CM Management, LLC | 70,000 | $1,225 | 1.46% |
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| OBERWEIS ASSET MANAGEMENT INC/ | 361,300 | $6,322,750 | 0.98% |
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| Herald Investment Management Ltd | 200,000 | $3,490,000 | 0.78% |
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| ARTHUR M. COHEN & ASSOCIATES, LLC | 134,474 | $2,353,295 | 0.63% |
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| Ancora Advisors LLC | 1,124,084 | $19,671,469 | 0.56% |
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| Factorial Partners, LLC | 23,500 | $411,250 | 0.31% |
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| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 83,127 | $1,454,723 | 0.28% |
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| EAM Investors, LLC | 63,202 | $1,106,035 | 0.22% |
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| KENNEDY CAPITAL MANAGEMENT LLC | 231,299 | $4,047,733 | 0.12% |
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| ETF MANAGERS GROUP, LLC | 189,586 | $3,317,755 | 0.11% |
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| XTX Topco Ltd | 21,190 | $370,825 | 0.08% |
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| ALGERT GLOBAL LLC | 64,799 | $1,134 | 0.05% |
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| SEGALL BRYANT & HAMILL, LLC | 260,900 | $4,565 | 0.05% |
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| Mirae Asset Global Investments Co., Ltd. | 1,156,852 | $20,244,910 | 0.05% |
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| Register Financial Advisors LLC | 3,000 | $52,500 | 0.04% |
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| BOOTHBAY FUND MANAGEMENT, LLC | 80,557 | $1,409,748 | 0.03% |
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