Today
+0.38%
5 Days
-4.04%
1 Month
-15.26%
6 Months
-26.69%
Year to Date
-59.15%
1 Year
-74.92%



| Shareholders | Proportion |
|---|---|
| Capital World Investors | 8.03% |
| BlackRock Institutional Trust Company, N.A. | 6.59% |
| Needham Investment Management L.L.C. | 5.61% |
| Marshall Wace LLP | 4.45% |
| Shareholder Types | Proportion |
|---|---|
| Investment Advisor/Hedge Fund | 31.61% |
| Investment Advisor | 28.27% |
| Hedge Fund | 18.70% |
| Individual Investor | 5.38% |
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