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ABIOMED INC
ABIOMED INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 142 Institutional holders with a total value of $1,122,632,219.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRIMECAP MANAGEMENT CO/CA/ 5,751,990 149,782,000 13.34%
2 MACQUARIE GROUP LTD 5,375,031 139,966,000 12.47%
3 Essex Woodlands Management, Inc. 3,150,000 82,026,000 7.31%
4 BLAIR WILLIAM & CO/IL 2,659,412 69,250,000 6.17%
5 VANGUARD GROUP INC 2,414,564 62,875,000 5.60%
6 Palo Alto Investors LP 2,202,289 57,348,000 5.11%
7 BlackRock Fund Advisors 2,088,353 54,381,000 4.84%
8 NEXT CENTURY GROWTH INVESTORS LLC 1,761,581 45,871,000 4.09%
9 Assured Investment Management LLC 1,607,941 41,871,000 3.73%
10 WELLINGTON MANAGEMENT GROUP LLP 1,596,964 41,585,000 3.70%
11 BlackRock Institutional Trust Company, N.A. 1,076,771 28,039,000 2.50%
12 MILLENNIUM MANAGEMENT LLC 841,173 21,904,000 1.95%
13 ROYAL BANK OF CANADA 766,073 19,949,000 1.78%
14 STATE STREET CORP 745,893 19,420,000 1.73%
15 GENEVA CAPITAL MANAGEMENT LLC 634,846 16,531,000 1.47%
16 NORTHERN TRUST CORP 536,681 13,976,000 1.24%
17 OMT Capital Management LLC 514,950 13,409,000 1.19%
18 BANK OF MONTREAL /CAN/ 485,002 12,629,000 1.12%
19 Bank of New York Mellon Corp 451,783 11,765,000 1.05%
20 MORGAN STANLEY 446,434 11,626,000 1.04%
21 ROCKEFELLER FINANCIAL SERVICES INC 445,407 11,598,000 1.03%
22 Cortina Asset Management, LLC 431,684 11,241,000 1.00%
23 DEUTSCHE BANK AG\ 322,950 8,409,000 0.75%
24 NORGES BANK 314,502 8,190,000 0.73%
25 Grandeur Peak Global Advisors, LLC 301,650 7,855,000 0.70%
26 D. E. Shaw & Co., Inc. 299,118 7,789,000 0.69%
27 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 258,089 6,721,000 0.60%
28 PRINCIPAL FINANCIAL GROUP INC 227,068 5,913,000 0.53%
29 TIAA CREF INVESTMENT MANAGEMENT LLC 198,370 5,166,000 0.46%
30 BARCLAYS PLC 198,063 5,149,000 0.46%
31 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 213,657 5,087,000 0.45%
32 Portolan Capital Management, LLC 194,622 5,068,000 0.45%
33 GEODE CAPITAL MANAGEMENT, LLC 194,346 5,060,000 0.45%
34 SEI TRUST CO 185,412 4,828,000 0.43%
35 Pine River Capital Management L.P. 178,771 4,655,000 0.41%
36 Cupps Capital Management, LLC 175,994 4,582,000 0.41%
37 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 167,491 4,361,000 0.39%
38 RUSSELL FRANK CO/ 170,218 4,185,000 0.37%
39 CREDIT SUISSE AG/ 158,217 4,120,000 0.37%
40 AMERIPRISE FINANCIAL INC 142,463 3,710,000 0.33%
41 BlackRock Investment Management, LLC 126,418 3,292,000 0.29%
42 Apex Capital Management 125,565 3,270,000 0.29%
43 DENVER INVESTMENT ADVISORS LLC 123,092 3,205,000 0.29%
44 THRIVENT FINANCIAL FOR LUTHERANS 121,400 3,161,000 0.28%
45 Visium Asset Management, LP 117,279 3,054,000 0.27%
46 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 102,742 2,676,000 0.24%
47 Invesco Ltd. 94,961 2,473,000 0.22%
48 Rhenman & Partners Asset Management AB 89,916 2,341,000 0.21%
49 NEW YORK STATE COMMON RETIREMENT FUND 83,900 2,185,000 0.19%
50 GOLDMAN SACHS GROUP INC 82,266 2,142,000 0.19%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.