Major THOR Thoratec Laboratories Corporation Shareholders including Fund and Institutional

THOR

Name	Shares Held	% Total Shares Held	Shares Change	% Chg from Prior Port	% Total Assets	Date of Portfolio	Star Rating

Fidelity Growth Company	4,012,265	7.06	-470,000	-10.49	0.33	12/31/2009

American Funds SMALLCAP World A	3,201,500	5.63	125,000	4.06	0.56	12/31/2009

Fidelity Magellan	1,500,000	2.64	0	0.00	0.16	12/31/2009

Calamos Growth A	800,000	1.41	0	0.00	0.25	12/31/2009

Vanguard Small Cap Index	710,353	1.26	8,584	1.22	0.14	09/30/2009

iShares Russell 2000 Index	686,429	---	-51,411	-6.97	0.18	02/05/2010

Vanguard Total Stock Mkt Idx	537,559	0.95	11,752	2.24	0.01	09/30/2009

SPDR S&P MidCap 400	533,731	0.94	19,628	3.82	0.17	12/31/2009

Vanguard Small Cap Growth Index	467,110	0.83	31,724	7.29	0.28	09/30/2009

Fidelity Contrafund	502,620	0.88	0	0.00	0.02	12/31/2009

Fidelity	462,800	0.81	0	0.00	0.23	12/31/2009

Alger SmallCap Growth Institutional I	402,000	0.71	7,600	1.93	1.10	11/30/2009

iShares S&P MidCap 400 Index	410,740	---	-5,016	-1.21	0.19	02/05/2010

iShares Russell 2000 Growth Index	393,792	---	346	0.09	0.37	02/05/2010

Lord Abbett Developing Growth A	402,661	0.71	82,400	25.73	1.02	12/31/2009

Vanguard Extended Market Idx	331,424	0.59	-15,558	-4.48	0.08	09/30/2009

CREF Stock	366,618	0.64	-6,813	-1.82	0.01	12/31/2009

Royce Pennsylvania Mutual Invmt	366,600	0.64	0	0.00	0.20	12/31/2009

AST Small Cap Growth	364,089	0.64	-215	-0.06	2.65	12/31/2009

Eagle Small Cap Growth A	345,010	0.61	0	0.00	2.70	12/31/2009

Name	Shares Held	% Total Shares Held	Shares Change	% Chg from Prior Port	% Total Assets	Date of Portfolio

Fidelity Management and Research Company	8,391,176	14.83	1,214,287	16.92	0.06	09/30/2009

Capital World Investors	5,349,500	9.45	0	0.00	0.06	09/30/2009

Barclays Global Investors Na /CA	3,830,458	6.77	322,396	9.19	0.02	09/30/2009

The Vanguard Group, Inc.	2,249,653	3.98	-69,034	-2.98	0.02	09/30/2009

Eagle Asset Management, Inc.	2,378,760	4.18	81,315	3.54	0.70	12/31/2009

State Street Corporation	1,645,625	2.91	278,746	20.39	0.01	09/30/2009

Tcw Asset Management Co	1,615,674	2.86	-68,710	-4.08	0.21	09/30/2009

Alger Fred Management Inc	1,582,455	2.80	229,496	16.96	0.45	09/30/2009

Visium Asset Management LLC	1,042,294	1.84	505,444	94.15	2.87	09/30/2009

Fred Alger Management, Inc	1,013,484	1.78	100	0.01	0.98	11/30/2009

Columbus Circle Investors	1,048,141	1.84	-161,644	-13.36	0.22	12/31/2009

Northern Trust Investments, N.A.	889,049	1.57	11,375	1.30	0.02	09/30/2009

J.P. Morgan Investment Management Inc.	833,983	1.47	254,373	43.89	0.03	09/30/2009

Calamos Advisors LLC	800,000	1.41	0	0.00	0.10	09/30/2009

Diamond Capital Mgmt Inc (MI)	734,073	1.30	513,131	232.25	0.39	09/30/2009

Columbia Management Company	628,810	1.11	-6,186	-0.97	0.02	09/30/2009

Arbor Capital Management LLC	627,900	1.11	86,300	15.93	2.00	09/30/2009

Next Century Growth Investors LLC	615,164	1.09	188,929	44.33	0.89	09/30/2009

Deutsche Inv Mgmt Americas Inc	603,300	1.07	-50,100	-7.67	0.08	09/30/2009

Viking Global Investors LP	547,311	0.97	-80,589	-12.83	0.21	09/30/2009