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

Institutional Holders (2016Q2)
Portfolio Summary: 293 Institutional holders with a total value of $4,433,579,335.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRIMECAP MANAGEMENT CO/CA/ 5,006,490 547,159,000 12.34%
2 VANGUARD GROUP INC 2,780,682 303,901,000 6.85%
3 Palo Alto Investors LP 2,066,919 225,894,000 5.10%
4 BlackRock Fund Advisors 1,565,070 171,047,000 3.86%
5 Essex Woodlands Management, Inc. 1,450,000 158,471,000 3.57%
6 Jackson Square Partners, LLC 1,238,653 135,372,000 3.05%
7 BlackRock Institutional Trust Company, N.A. 1,160,974 126,883,000 2.86%
8 1832 Asset Management L.P. 1,122,900 121,857,000 2.75%
9 STATE STREET CORP 1,082,842 118,348,000 2.67%
10 LORD, ABBETT & CO. LLC 829,341 90,639,000 2.04%
11 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 813,371 88,893,000 2.00%
12 MACQUARIE GROUP LTD 809,706 88,493,000 2.00%
13 EAGLE ASSET MANAGEMENT INC 758,138 82,856,000 1.87%
14 OAK RIDGE INVESTMENTS LLC 657,789 71,890,000 1.62%
15 RENAISSANCE TECHNOLOGIES LLC 621,723 67,948,000 1.53%
16 BAILLIE GIFFORD & CO 598,353 65,394,000 1.47%
17 BROWN CAPITAL MANAGEMENT LLC 593,959 64,914,000 1.46%
18 ROYAL BANK OF CANADA 569,258 62,214,000 1.40%
19 GOLDMAN SACHS GROUP INC 550,384 60,152,000 1.36%
20 NORGES BANK 513,794 56,153,000 1.27%
21 Bank of New York Mellon Corp 498,414 54,472,000 1.23%
22 WELLINGTON MANAGEMENT GROUP LLP 490,764 53,635,000 1.21%
23 JANUS HENDERSON GROUP PLC 488,254 53,362,000 1.20%
24 NEXT CENTURY GROWTH INVESTORS LLC 456,940 49,938,000 1.13%
25 COLUMBIA WANGER ASSET MANAGEMENT LLC 388,958 42,509,000 0.96%
26 BLAIR WILLIAM & CO/IL 383,995 41,967,000 0.95%
27 NORTHERN TRUST CORP 359,869 39,329,000 0.89%
28 Granahan Investment Management, LLC 321,783 35,168,000 0.79%
29 CASTLEARK MANAGEMENT LLC 303,577 33,178,000 0.75%
30 SECTORAL ASSET MANAGEMENT INC 298,338 32,605,000 0.74%
31 Mitsubishi UFJ Trust & Banking Corp 290,390 31,737,000 0.72%
32 ArrowMark Colorado Holdings LLC 290,364 31,734,000 0.72%
33 GEODE CAPITAL MANAGEMENT, LLC 289,453 31,634,000 0.71%
34 MORGAN STANLEY 285,531 31,206,000 0.70%
35 DEUTSCHE BANK AG\ 276,347 30,199,000 0.68%
36 Nationwide Fund Advisors 270,119 29,521,000 0.67%
37 SCOUT INVESTMENTS, INC. 269,067 29,406,000 0.66%
38 Stephens Investment Management Group LLC 262,478 28,686,000 0.65%
39 VOYA INVESTMENT MANAGEMENT LLC 243,771 26,642,000 0.60%
40 ROCKEFELLER FINANCIAL SERVICES INC 231,516 25,302,000 0.57%
41 FRED ALGER MANAGEMENT, LLC 224,944 24,584,000 0.55%
42 Polar Capital LLP 218,000 23,825,000 0.54%
43 MILLENNIUM MANAGEMENT LLC 215,718 23,576,000 0.53%
44 AMERIPRISE FINANCIAL INC 209,769 22,927,000 0.52%
45 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 202,141 22,092,000 0.50%
46 OppenheimerFunds, Inc. 199,261 21,777,000 0.49%
47 NEW YORK STATE COMMON RETIREMENT FUND 192,315 21,018,000 0.47%
48 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 190,106 20,777,000 0.47%
49 WELLS FARGO & COMPANY/MN 186,559 20,389,000 0.46%
50 GUGGENHEIM CAPITAL LLC 183,073 20,008,000 0.45%
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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.