
| Monthly Rotation | Number of Shares |
Value of Change (MM) |
% of Shrs. Outstanding |
|---|---|---|---|
| Buyers 11/22/09 | 544,823 | $1.27 | 16.4% |
| Sellers 11/22/09 | 9,285,369 | $28.70 | 14.0% |
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34 Holders |
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27 Holders |
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35 Holders |
66.9%
4.4%

| Top 10 Institutions: | Top 20 Institutions: | Top 50 Institutions: | All: |

|
|||||
|---|---|---|---|---|---|
HealthCor ... |
4.4M |
$15,712,619 | +28% | 19.8% | High |
Baker Brothers ... |
3.5M |
$8,445,267 | +22% | 15.5% | Low |
Renaissance ... |
1.3M |
$3,053,172 | +8% | 5.6% | High |
UBS Securities LLC |
742.9K |
$1,812,671 | +5% | 3.3% | Moderate |
LSV Asset Management |
730.6K |
$1,782,664 | +5% | 3.3% | Low |
Carnegie ... |
676.1K |
$905,999 | +4% | 3.0% | Moderate |
OrbiMed ... |
600.0K |
$2,136,000 | +4% | 2.7% | Moderate |
Dimensional Fund ... |
588.7K |
$1,436,311 | +4% | 2.6% | Low |
Roark, Rearden & ... |
565.6K |
$1,380,098 | +4% | 2.5% | Moderate |
Credit Suisse ... |
558.5K |
$1,362,745 | +4% | 2.5% | Moderate |

|
|||||
|---|---|---|---|---|---|
UBS Eucalyptus ... |
527.3K |
$1,065,146 | +3% | 2.4% | Sector Specific |
DFA U.S. Small ... |
264.4K |
$547,238 | +2% | 1.2% | Index |
Vanguard Total ... |
188.4K |
$380,552 | +1% | 0.8% | Index |
Vanguard ... |
65.3K |
$131,831 | 0% | 0.3% | Index |
DFA Tax-Managed ... |
36.6K |
$75,661 | 0% | 0.2% | GARP |
iShares Russell ... |
30.0K |
$60,511 | 0% | 0.1% | Index |
DFA U.S. Core ... |
17.5K |
$36,225 | 0% | 0.1% | Core Growth |
Fidelity Spartan ... |
16.9K |
$41,153 | 0% | 0.1% | Index |
Fidelity Spartan ... |
15.2K |
$37,159 | 0% | 0.1% | Index |
DFA U.S. ... |
14.5K |
$35,314 | 0% | 0.1% | Index |