| 2/3/2020 | Perkins Capital Management Inc. | 710,568 | $0.81M | 0.7% | -10.6% | 6.855% | |
| 11/27/2019 | Virtu Financial LLC | 44,317 | $37K | 0.0% | N/A | 0.428% | |
| 10/23/2019 | Perkins Capital Management Inc. | 794,768 | $0.66M | 0.6% | +362.9% | 12.360% | |
| 10/17/2019 | Wedbush Securities Inc. | 76,056 | $63K | 0.0% | N/A | 1.184% | |
| 8/14/2019 | Vanguard Group Inc. | 83,575 | $0.25M | 0.0% | -53.7% | 1.301% | |
| 8/14/2019 | A.R.T. Advisors LLC | 32,603 | $99K | 0.0% | -79.0% | 0.507% | |
| 8/12/2019 | Renaissance Technologies LLC | 164,020 | $0.50M | 0.0% | -84.5% | 2.555% | |
| 5/7/2019 | Spark Investment Management LLC | 103,043 | $98K | 0.0% | N/A | 0.214% | |
| 4/22/2019 | Perkins Capital Management Inc. | 1,711,750 | $1.64M | 1.1% | -2.2% | 3.557% | |
| 2/14/2019 | CVI Holdings LLC | 146,861 | $44K | 0.1% | N/A | 0.626% | |
| 1/16/2019 | Virtu Financial LLC | 252,472 | $75K | 0.0% | +1,918.5% | 1.076% | |
| 8/30/2017 | AWM Investment Company Inc. | 1,150,000 | $0.52M | 0.1% | N/A | 4.809% | |
| 5/15/2017 | Broadfin Capital LLC | 500,000 | $0.95M | 0.1% | N/A | 2.099% | |
| 5/12/2017 | Morgan Stanley | 671,422 | $1.28M | 0.0% | -3.3% | 0.000% | |
| 5/12/2017 | RMB Capital Management LLC | 906,552 | $1.72M | 0.1% | +198.7% | 0.000% | |
| 5/11/2017 | TIAA CREF Investment Management LLC | 53,459 | $0.10M | 0.0% | -19.5% | 0.000% | |
| 5/11/2017 | FMR LLC | 1,226,445 | $2.33M | 0.0% | -21.4% | 0.000% | |
| 5/10/2017 | Blair William & Co. IL | 73,900 | $0.19M | 0.0% | +5.0% | 0.000% | |
| 5/9/2017 | Thornburg Investment Management Inc. | 872,999 | $1.66M | 0.0% | -39.8% | 0.000% | |
| 3/29/2017 | RMB Capital Management LLC | 303,452 | $1.12M | 0.1% | N/A | 1.269% | |
| 2/15/2017 | First Light Asset Management LLC | 44,400 | $0.16M | 0.1% | -54.0% | 0.195% | |
| 2/14/2017 | Alyeska Investment Group L.P. | 380,209 | $1.41M | 0.0% | +0.8% | 1.667% | |
| 2/14/2017 | Millrace Asset Group Inc. | 218,018 | $0.81M | 0.9% | +74.4% | 0.956% | |
| 2/10/2017 | FMR LLC | 1,560,000 | $5.77M | 0.0% | N/A | 6.841% | |
| 2/10/2017 | Thornburg Investment Management Inc. | 1,449,711 | $5.36M | 0.0% | -14.0% | 6.357% | |
| 11/14/2016 | AWM Investment Company Inc. | 390,790 | $1.86M | 0.3% | -21.9% | 2.209% | |
| 11/7/2016 | Wealth Architects LLC | 33,586 | $0.16M | 0.1% | No Change | 0.262% | |
| 8/18/2016 | Schwab Charles Investment Management Inc. | 17,500 | $0.21M | 0.0% | N/A | 0.136% | |
| 8/9/2016 | Paradigm Capital Management Inc. NY | 398,700 | $4.76M | 0.6% | -9.1% | 3.131% | |
| 8/9/2016 | AWM Investment Company Inc. | 500,295 | $5.97M | 1.3% | -5.1% | 3.929% | |
| 8/8/2016 | Royce & Associates LP | 596,775 | $7.12M | 0.0% | +45.8% | 4.686% | |
| 8/8/2016 | Blair William & Co. IL | 59,425 | $0.71M | 0.0% | +19.7% | 0.467% | |
| 8/2/2016 | Monashee Investment Management LLC | 54,999 | $0.66M | 1.0% | No Change | 0.433% | |
| 8/1/2016 | California State Teachers Retirement System | 22,909 | $0.27M | 0.0% | N/A | 0.180% | |
| 8/1/2016 | Bank of New York Mellon Corp | 30,406 | $0.36M | 0.0% | N/A | 0.240% | |
| 8/1/2016 | Gilder Gagnon Howe & Co. LLC | 82,679 | $0.99M | 0.0% | -1.1% | 0.651% | |
| 5/13/2016 | Geode Capital Management LLC | 30,433 | $0.29M | 0.0% | -0.1% | 0.241% | |
| 5/13/2016 | Goldman Sachs Group Inc. | 13,063 | $0.13M | 0.0% | N/A | 0.103% | |
| 5/13/2016 | Nicholas Investment Partners LP | 16,228 | $0.16M | 0.0% | -90.1% | 0.129% | |
| 5/11/2016 | Royce & Associates LP | 409,175 | $3.92M | 0.0% | +18.1% | 3.242% | |
| 5/10/2016 | JPMorgan Chase & Co. | 23,605 | $0.23M | 0.0% | N/A | 0.187% | |
| 5/10/2016 | BlackRock Institutional Trust Company N.A. | 26,754 | $0.26M | 0.0% | No Change | 0.212% | |
| 5/10/2016 | BlackRock Fund Advisors | 15,514 | $0.15M | 0.0% | -7.5% | 0.123% | |
| 2/16/2016 | Allianz Asset Management AG | 76,002 | $1.73M | 0.0% | -4.9% | 0.602% | |
| 2/12/2016 | Waddell & Reed Financial Inc. | 2,576,731 | $58.52M | 0.1% | +2.4% | 20.415% | |
| 2/12/2016 | Driehaus Capital Management LLC | 376,127 | $8.54M | 0.3% | +93.2% | 2.980% | |
| 2/10/2016 | Paradigm Capital Management Inc. NY | 367,056 | $8.34M | 0.9% | +41.8% | 2.908% | |
| 2/9/2016 | Royce & Associates LLC | 346,364 | $7.87M | 0.0% | -23.8% | 2.744% | |
| 2/9/2016 | Monashee Investment Management LLC | 158,730 | $3.61M | 7.2% | No Change | 1.258% | |
| 2/9/2016 | Morgan Stanley | 146,866 | $3.34M | 0.0% | +248.5% | 1.164% | |
| 2/9/2016 | Thornburg Investment Management Inc. | 52,792 | $1.20M | 0.0% | N/A | 0.418% | |
| 2/8/2016 | AWM Investment Company Inc. | 500,000 | $11.36M | 2.2% | No Change | 3.961% | |
| 2/5/2016 | EAM Investors LLC | 116,261 | $2.64M | 0.3% | +0.4% | 0.921% | |
| 2/4/2016 | Timpani Capital Management LLC | 61,803 | $1.40M | 0.6% | N/A | 0.490% | |
| 9/30/2015 | Monashee Investment Management | 158,730 | $2.33M | 16.1% | N/A | 0.000% | |
