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

Institutional Holders (2016Q4)
Portfolio Summary: 318 Institutional holders with a total value of $4,557,650,091.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRIMECAP MANAGEMENT CO/CA/ 4,676,630 526,963,000 11.56%
2 VANGUARD GROUP INC 3,319,859 374,082,000 8.21%
3 WELLINGTON MANAGEMENT GROUP LLP 2,632,144 296,590,000 6.51%
4 Palo Alto Investors LP 1,903,584 214,496,000 4.71%
5 BlackRock Fund Advisors 1,640,991 184,907,000 4.06%
6 Essex Woodlands Management, Inc. 1,450,000 163,386,000 3.58%
7 BlackRock Institutional Trust Company, N.A. 1,229,259 138,513,000 3.04%
8 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 1,029,366 115,989,000 2.54%
9 STATE STREET CORP 1,027,037 115,737,000 2.54%
10 Bank of New York Mellon Corp 733,946 82,702,000 1.81%
11 Jackson Square Partners, LLC 708,724 79,859,000 1.75%
12 BROWN CAPITAL MANAGEMENT LLC 701,811 79,080,000 1.74%
13 BAILLIE GIFFORD & CO 588,171 66,274,000 1.45%
14 Granahan Investment Management, LLC 572,683 64,530,000 1.42%
15 JANUS HENDERSON GROUP PLC 537,899 60,610,000 1.33%
16 ROYAL BANK OF CANADA 528,379 59,538,000 1.31%
17 RENAISSANCE TECHNOLOGIES LLC 523,900 59,033,000 1.30%
18 GOLDMAN SACHS GROUP INC 511,709 57,659,000 1.27%
19 SCOUT INVESTMENTS, INC. 510,380 57,510,000 1.26%
20 OAK RIDGE INVESTMENTS LLC 507,566 57,193,000 1.25%
21 1832 Asset Management L.P. 514,900 56,144,000 1.23%
22 MILLENNIUM MANAGEMENT LLC 493,498 55,607,000 1.22%
23 NORGES BANK 476,577 53,701,000 1.18%
24 MACQUARIE GROUP LTD 412,680 46,501,000 1.02%
25 CASTLEARK MANAGEMENT LLC 407,439 45,910,000 1.01%
26 NEXT CENTURY GROWTH INVESTORS LLC 397,050 44,739,000 0.98%
27 BLAIR WILLIAM & CO/IL 394,033 44,400,000 0.97%
28 Nationwide Fund Advisors 388,160 43,738,000 0.96%
29 NORTHERN TRUST CORP 378,126 42,607,000 0.93%
30 COLUMBIA WANGER ASSET MANAGEMENT LLC 311,535 35,104,000 0.77%
31 Stephens Investment Management Group LLC 292,205 32,926,000 0.72%
32 GEODE CAPITAL MANAGEMENT, LLC 291,947 32,896,000 0.72%
33 RUSSELL INVESTMENTS GROUP, LTD. 282,920 32,120,000 0.70%
34 Mitsubishi UFJ Trust & Banking Corp 253,240 28,535,000 0.63%
35 FRED ALGER MANAGEMENT, LLC 251,788 28,371,000 0.62%
36 SECTORAL ASSET MANAGEMENT INC 251,416 28,330,000 0.62%
37 ArrowMark Colorado Holdings LLC 232,542 26,203,000 0.57%
38 ROCKEFELLER FINANCIAL SERVICES INC 231,622 26,099,000 0.57%
39 VOYA INVESTMENT MANAGEMENT LLC 222,221 25,040,000 0.55%
40 OppenheimerFunds, Inc. 214,178 24,133,000 0.53%
41 Polar Capital LLP 198,000 22,311,000 0.49%
42 NEW YORK STATE COMMON RETIREMENT FUND 195,971 22,082,000 0.48%
43 Invesco Ltd. 194,860 21,957,000 0.48%
44 GUGGENHEIM CAPITAL LLC 194,778 21,947,000 0.48%
45 LORD, ABBETT & CO. LLC 194,650 21,933,000 0.48%
46 FIRST TRUST ADVISORS LP 185,140 20,862,000 0.46%
47 FMR LLC 176,303 19,866,000 0.44%
48 MORGAN STANLEY 162,118 18,267,000 0.40%
49 PRINCIPAL FINANCIAL GROUP INC 161,633 18,213,000 0.40%
50 EAGLE ASSET MANAGEMENT INC 159,327 17,952,000 0.39%
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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.