| 1 | Juniper Investment Company, LLC | 2,363,311 | $57.1M | 19.62% | Share |
| 2 | Alyeska Investment Group, L.P. | 1,626,623 | $39.0M | 0.11% | Share |
| 3 | VANGUARD GROUP INC | 1,501,956 | $36.3M | 0.00% | Share |
| 4 | HEARTLAND ADVISORS INC | 1,290,000 | $31.2M | 1.68% | Share |
| 5 | NEEDHAM INVESTMENT MANAGEMENT LLC | 1,125,000 | $27.2M | 1.72% | Share |
| 6 | BlackRock, Inc. | 1,121,551 | $27.0M | 0.00% | Share |
| 7 | WASATCH ADVISORS LP | 1,115,779 | $26.9M | 0.16% | Share |
| 8 | NEXT CENTURY GROWTH INVESTORS LLC | 791,271 | $19.1M | 1.33% | Share |
| 9 | BlackRock, Inc. | 825,236 | $19.0M | 0.00% | Share |
| 10 | First Eagle Investment Management, LLC | 778,630 | $18.8M | 0.03% | Share |
| 11 | Pillsbury Lake Capital LLC | 705,108 | $17.0M | 5.95% | Share |
| 12 | DIMENSIONAL FUND ADVISORS LP | 714,210 | $17.0M | 0.00% | Share |
| 13 | AMERICAN CENTURY COMPANIES INC | 675,648 | $16.0M | 0.01% | Share |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | 610,529 | $14.0M | 0.00% | Share |
| 15 | STATE STREET CORP | 589,215 | $14.0M | 0.00% | Share |
| 16 | RBF Capital, LLC | 499,070 | $12.0M | 0.53% | Share |
| 17 | DRIEHAUS CAPITAL MANAGEMENT LLC | 443,031 | $10.7M | 0.07% | Share |
| 18 | WELLINGTON MANAGEMENT GROUP LLP | 423,311 | $10.0M | 0.00% | Share |
| 19 | Point72 Asset Management, L.P. | 431,401 | $10.0M | 0.01% | Share |
| 20 | ESSEX INVESTMENT MANAGEMENT CO LLC | 388,819 | $9.4M | 1.43% | Share |
| 21 | PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 362,295 | $8.7M | 0.51% | Share |
| 22 | RENAISSANCE TECHNOLOGIES LLC | 353,878 | $8.0M | 0.01% | Share |
| 23 | OBERWEIS ASSET MANAGEMENT INC/ | 309,100 | $7.5M | 0.27% | Share |
| 24 | Pacific Ridge Capital Partners, LLC | 303,558 | $7.3M | 1.61% | Share |
| 25 | Uniplan Investment Counsel, Inc. | 294,979 | $7.1M | 2.00% | Share |
| 26 | Journey Advisory Group, LLC | 251,754 | $6.1M | 0.51% | Share |
| 27 | AUXIER ASSET MANAGEMENT LLC | 236,544 | $5.0M | 0.70% | Share |
| 28 | LORD, ABBETT & CO. LLC | 222,402 | $5.0M | 0.02% | Share |
| 29 | NORTHERN TRUST CORP | 209,831 | $5.0M | 0.00% | Share |
| 30 | MILLENNIUM MANAGEMENT LLC | 208,912 | $5.0M | 0.00% | Share |
| 31 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 247,898 | $5.0M | 0.00% | Share |
| 32 | VANGUARD GROUP INC | 198,056 | $4.8M | 0.00% | Share |
| 33 | Pullen Investment Management, LLC | 185,962 | $4.5M | 2.36% | Share |
| 34 | 4D Advisors, LLC | 185,000 | $4.5M | 2.45% | Share |
| 35 | Manatuck Hill Partners, LLC | 180,675 | $4.4M | 1.53% | Share |
| 36 | ROYCE & ASSOCIATES LP | 173,243 | $4.2M | 0.04% | Share |
| 37 | Connor, Clark & Lunn Investment Management Ltd. | 188,435 | $4.0M | 0.01% | Share |
| 38 | PRELUDE CAPITAL MANAGEMENT, LLC | 193,411 | $4.0M | 0.29% | Share |
| 39 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 172,173 | $4.0M | 0.00% | Share |
| 40 | TWO SIGMA INVESTMENTS, LP | 183,266 | $4.0M | 0.01% | Share |
| 41 | Invesco Ltd. | 162,799 | $3.9M | 0.00% | Share |
| 42 | North Star Investment Management Corp. | 143,275 | $3.5M | 0.22% | Share |
| 43 | Trexquant Investment LP | 135,049 | $3.3M | 0.03% | Share |
| 44 | Legato Capital Management LLC | 125,399 | $3.0M | 0.26% | Share |
| 45 | WELLINGTON MANAGEMENT GROUP LLP | 165,200 | $3.0M | 0.00% | Share |
| 46 | BANK OF AMERICA CORP /DE/ | 143,632 | $3.0M | 0.00% | Share |
| 47 | Mariner, LLC | 134,006 | $3.0M | 0.00% | Share |
| 48 | Harvest Investment Services, LLC | 114,900 | $2.8M | 0.52% | Share |
| 49 | RICE HALL JAMES & ASSOCIATES, LLC | 110,087 | $2.7M | 0.15% | Share |
| 50 | BOOTHBAY FUND MANAGEMENT, LLC | 103,286 | $2.0M | 0.03% | Share |