Notable Holders of Thoratec Corp (THOR)
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* Does Not Fully Represent All Holders
| Fund | Title | Shares | % Owned | Source |
|---|---|---|---|---|
| Maverick Capital, Ltd. | COM NEW | 1,661,138 | 2.92% | 13F |
| CHARTWELL INVESTMENT PARTNERS/PA | COM | 665,300 | 1.17% | 13F |
| EXPO CAPITAL MANAGEMENT LLC | COM | 575,000 | 1.01% | 13F |
| BOSTON TRUST & INVESTMENT MANAGEMENT CO | 519,373 | 0.91% | 13F | |
| ING INVESTMENT MANAGEMENT CO | COM NEW | 507,777 | 0.89% | 13F |
| BMO FINANCIAL CORP | COM NEW | 245,782 | 0.43% | 13F |
| McAdams Wright Ragen, Inc. | COM | 236,945 | 0.42% | 13F |
| MANAGED ACCOUNT ADVISORS LLC | COM NEW | 231,627 | 0.41% | 13F |
| MFC GLOBAL INVESTMENT MANAGEMENT (U.S.), LLC | COM NEW | 190,318 | 0.34% | 13F |
| BAIRD ROBERT W & CO INC /WI/ | COMMON | 132,902 | 0.23% | 13F |
| PUTNAM INVESTMENT MANAGEMENT LLC | 75,113 | 0.13% | 13F | |
| UBS AG | COM NEW | 73,853 | 0.13% | 13F |
| KOPP FUNDS INC | COM NEW | 55,583 | 0.10% | 13F |
| Man Investments LTD | COM NEW | 48,370 | 0.09% | 13F |
| Manulife Asset Management (North America) Ltd | COM NEW | 34,740 | 0.06% | 13F |
| NORTHERN TRUST CO OF CONNECTICUT | COM NEW | 32,386 | 0.06% | 13F |
| SpiderRock Trading LLC | COM NEW | 7,000 | 0.01% | 13F |

