| 1 |
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ |
2,598,241 |
9,431,615 |
21.61% |
|
|
| 2 |
Cortina Asset Management, LLC |
1,806,024 |
6,556,000 |
15.02% |
|
|
| 3 |
ORBIMED ADVISORS LLC |
1,363,500 |
4,950,000 |
11.34% |
|
|
| 4 |
PERKINS CAPITAL MANAGEMENT INC |
1,295,611 |
4,703,000 |
10.77% |
|
|
| 5 |
Visium Asset Management, LP |
989,000 |
3,591,000 |
8.23% |
|
|
| 6 |
Manatuck Hill Partners, LLC |
709,336 |
2,575,000 |
5.90% |
|
|
| 7 |
PERCEPTIVE ADVISORS LLC |
517,791 |
1,880,000 |
4.31% |
|
|
| 8 |
VANGUARD GROUP INC |
472,371 |
1,715,000 |
3.93% |
|
|
| 9 |
Rothschild Capital Partners, LLC |
397,313 |
1,442,000 |
3.30% |
|
|
| 10 |
BARD ASSOCIATES INC |
310,972 |
1,129,000 |
2.59% |
|
|
| 11 |
DAFNA Capital Management LLC |
289,332 |
1,050,000 |
2.41% |
|
|
| 12 |
BlackRock Institutional Trust Company, N.A. |
204,858 |
744,000 |
1.70% |
|
|
| 13 |
SOPHROSYNE CAPITAL LLC |
172,600 |
627,000 |
1.44% |
|
|
| 14 |
ESSEX INVESTMENT MANAGEMENT CO LLC |
154,061 |
559,000 |
1.28% |
|
|
| 15 |
WHITE PINE CAPITAL LLC |
147,250 |
535,000 |
1.23% |
|
|
| 16 |
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM |
89,800 |
344,000 |
0.79% |
|
|
| 17 |
RENAISSANCE TECHNOLOGIES LLC |
91,300 |
331,000 |
0.76% |
|
|
| 18 |
NORTHERN TRUST CORP |
75,700 |
275,000 |
0.63% |
|
|
| 19 |
GEODE CAPITAL MANAGEMENT, LLC |
68,988 |
250,000 |
0.57% |
|
|
| 20 |
BlackRock Fund Advisors |
63,630 |
231,000 |
0.53% |
|
|
| 21 |
DIMENSIONAL FUND ADVISORS LP |
57,829 |
210,000 |
0.48% |
|
|
| 22 |
MORGAN STANLEY |
54,882 |
199,000 |
0.46% |
|
|
| 23 |
CITADEL ADVISORS LLC |
17,951 |
65,000 |
0.15% |
|
|
| 24 |
NATIXIS |
15,800 |
57,000 |
0.13% |
|
|
| 25 |
GUGGENHEIM CAPITAL LLC |
13,827 |
50,000 |
0.11% |
|
|
| 26 |
Bank of New York Mellon Corp |
11,557 |
42,000 |
0.10% |
|
|
| 27 |
STATE STREET CORP |
11,100 |
40,000 |
0.09% |
|
|
| 28 |
BLACKROCK ADVISORS LLC |
5,585 |
20,000 |
0.05% |
|
|
| 29 |
Tower Research Capital LLC (TRC) |
4,533 |
16,000 |
0.04% |
|
|
| 30 |
UBS AG |
3,899 |
14,000 |
0.03% |
|
|
| 31 |
Crosspoint Capital Strategies, LLC |
2,900 |
11,000 |
0.03% |
|
|
| 32 |
MANUFACTURERS LIFE INSURANCE COMPANY, THE |
1,230 |
4,000 |
0.01% |
|
|
| 33 |
BNP PARIBAS FINANCIAL MARKETS |
295 |
1,027 |
0.00% |
|
|
| 34 |
CITIGROUP INC |
200 |
1,000 |
0.00% |
|
|
| 35 |
MARK SHEPTOFF FINANCIAL PLANNING, LLC |
200 |
1,000 |
0.00% |
|
|
