MICRUS ENDOVASCULAR CORP (MEND) [Rocket]

Ownership

MICRUS ENDOVASCULAR CORP (MEND)

Portfolio as of:

Name	Shares	Change	Value	% Port	% OS	Hist	Date
FMR LLC	2,707,847	141,825	56,296,000	0.01	16.76	Hist	06/30/2010
JPMORGAN CHASE & CO	985,608	422,084	20,490,000	0.01	6.10	Hist	06/30/2010
PRIMECAP MANAGEMENT CO/CA/	750,600	75,000	15,605,000	0.03	4.65	Hist	06/30/2010
BlackRock Inc.	786,613	786,613	13,199,366			Hist	01/29/2010
WILLIAM HARRIS INVESTORS INC	579,305	0	12,043,000	4.27	3.59	Hist	06/30/2010
BlackRock Institutional Trust Company, N.A.	407,141	-1,305	8,464,000	0.00	2.52	Hist	06/30/2010
AXA S.A.	357,310	2,320	7,428,480	0.01	2.21	Hist	06/30/2010
BlackRock Fund Advisors	351,008	-1,173	7,297,000	0.00	2.17	Hist	06/30/2010
MASON STREET ADVISORS, LLC	323,800	109,400	6,732,000	0.06	2.00	Hist	06/30/2010
VOYA INVESTMENT MANAGEMENT CO	310,858	6,800	6,463,000	0.03	1.92	Hist	06/30/2010
DIMENSIONAL FUND ADVISORS LP	303,667	-5,754	6,313,000	0.01	1.88	Hist	06/30/2010
TIAA CREF INVESTMENT MANAGEMENT LLC	295,198	178,473	6,137,000	0.01	1.83	Hist	06/30/2010
STATE STREET CORP	294,036	22,064	6,113,000	0.00	1.82	Hist	06/30/2010
Stephens Investment Management Group LLC	258,979	108,274	5,384,000	0.71	1.60	Hist	06/30/2010
VANGUARD GROUP INC	251,793	3,508	5,235,000	0.00	1.56	Hist	06/30/2010
ING GROEP NV	320,733	-40,650	4,766,000	0.02	2.00	Hist	12/31/2009
LORD, ABBETT & CO. LLC	226,900	113,100	4,717,251	0.01	1.40	Hist	06/30/2010
Perimeter Capital Partners, LLC	225,838	69,509	4,695,000	0.34	1.40	Hist	06/30/2010
Redmile Group, LLC	207,935	84,700	4,323,000	3.58	1.29	Hist	06/30/2010
MANNING & NAPIER ADVISORS LLC	287,907	52,910	4,321,000	0.03	1.80	Hist	12/31/2009
WALL STREET ASSOCIATES	190,000	25,700	3,950,000	0.29	1.18	Hist	06/30/2010
DRIEHAUS CAPITAL MANAGEMENT LLC	183,080	-22,994	3,806,000	0.20	1.13	Hist	06/30/2010
CATAPULT CAPITAL MANAGEMENT LLC	160,000	-10,000	3,326,000	0.47	0.99	Hist	06/30/2010
MCKINLEY CAPITAL MANAGEMENT LLC	139,397	-1,771	2,898,000	0.11	0.86	Hist	06/30/2010
OBERWEIS ASSET MANAGEMENT INC/	122,100	46,300	2,538,000	0.50	0.76	Hist	06/30/2010
EAGLE ASSET MANAGEMENT INC	109,738	109,738	2,281,000	0.03	0.68	Hist	06/30/2010
HARTFORD INVESTMENT MANAGEMENT CO	114,533	114,533	2,259,000	0.00	0.71	Hist	03/31/2010
NICHOLAS COMPANY, INC.	95,660	0	1,989,000	0.10	0.59	Hist	06/30/2010
DUQUESNE CAPITAL MANAGEMENT L L C	130,700	130,700	1,961,000	0.05	0.82	Hist	12/31/2009
Lisanti Capital Growth, LLC	94,083	94,083	1,956,000	1.17	0.58	Hist	06/30/2010
RGM Capital, LLC	116,122	116,122	1,742,000	1.75	0.73	Hist	12/31/2009
FULLER & THALER ASSET MANAGEMENT, INC.	87,200	-45,600	1,719,584	0.18	0.54	Hist	03/31/2010
DAFNA Capital Management LLC	76,289	20,100	1,586,000	3.47	0.47	Hist	06/30/2010
Bank of New York Mellon Corp	74,934	2,951	1,558,000	0.00	0.46	Hist	06/30/2010
TURNER INVESTMENTS LLC	70,320	7,030	1,462,000	0.01	0.44	Hist	06/30/2010
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