Dark
Light
System
Security
ABIOMED INC
ABIOMED INC. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 248 Institutional holders with a total value of $3,602,294,240.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 PRIMECAP MANAGEMENT CO/CA/ 5,657,090 510,722,000 14.18%
2 VANGUARD GROUP INC 3,052,249 275,558,000 7.65%
3 Palo Alto Investors LP 2,889,505 260,865,000 7.24%
4 BlackRock Fund Advisors 2,628,962 237,343,000 6.59%
5 Essex Woodlands Management, Inc. 2,150,000 194,102,000 5.39%
6 Jackson Square Partners, LLC 1,823,903 164,661,000 4.57%
7 MACQUARIE GROUP LTD 1,226,608 110,738,000 3.07%
8 BlackRock Institutional Trust Company, N.A. 970,698 87,635,000 2.43%
9 STATE STREET CORP 841,959 76,007,000 2.11%
10 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 809,432 73,076,000 2.03%
11 Bank of New York Mellon Corp 736,993 66,536,000 1.85%
12 OAK RIDGE INVESTMENTS LLC 721,220 65,112,000 1.81%
13 EAGLE ASSET MANAGEMENT INC 648,785 58,572,000 1.63%
14 NEXT CENTURY GROWTH INVESTORS LLC 608,525 54,937,000 1.53%
15 ROYAL BANK OF CANADA 569,334 51,399,000 1.43%
16 NORTHERN TRUST CORP 516,929 46,668,000 1.30%
17 NORGES BANK 513,794 46,385,000 1.29%
18 LORD, ABBETT & CO. LLC 424,547 38,328,000 1.06%
19 VOYA INVESTMENT MANAGEMENT LLC 400,538 36,161,000 1.00%
20 SCOUT INVESTMENTS, INC. 291,009 26,272,000 0.73%
21 Granahan Investment Management, LLC 288,983 26,089,000 0.72%
22 BAILLIE GIFFORD & CO 287,412 25,947,000 0.72%
23 Cupps Capital Management, LLC 277,761 25,076,000 0.70%
24 GEODE CAPITAL MANAGEMENT, LLC 276,915 24,999,000 0.69%
25 GOLDMAN SACHS GROUP INC 276,826 24,991,000 0.69%
26 RUSSELL FRANK CO/ 270,211 24,892,000 0.69%
27 Invesco Ltd. 273,413 24,683,000 0.69%
28 Cortina Asset Management, LLC 270,840 24,451,000 0.68%
29 JANUS HENDERSON GROUP PLC 268,423 24,233,000 0.67%
30 EverPoint Asset Management, LLC 265,000 23,924,000 0.66%
31 PRINCIPAL FINANCIAL GROUP INC 262,842 23,729,000 0.66%
32 Stephens Investment Management Group LLC 240,555 21,717,000 0.60%
33 ROCKEFELLER FINANCIAL SERVICES INC 239,835 21,652,000 0.60%
34 WELLINGTON MANAGEMENT GROUP LLP 237,311 21,424,000 0.59%
35 Apex Capital Management 233,756 21,103,000 0.59%
36 TEACHERS ADVISORS, LLC 228,937 20,668,000 0.57%
37 SEI INVESTMENTS CO 225,889 20,393,000 0.57%
38 BLAIR WILLIAM & CO/IL 225,637 20,370,000 0.57%
39 AMERIPRISE FINANCIAL INC 224,074 20,230,000 0.56%
40 FRED ALGER MANAGEMENT, LLC 222,466 20,084,000 0.56%
41 Rhenman & Partners Asset Management AB 220,000 19,862,000 0.55%
42 Mitsubishi UFJ Trust & Banking Corp 219,710 19,835,000 0.55%
43 MORGAN STANLEY 202,484 18,281,000 0.51%
44 Nuveen Asset Management, LLC 199,709 18,030,000 0.50%
45 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 190,373 17,187,000 0.48%
46 Jupiter Investment Management Ltd 183,183 16,537,000 0.46%
47 WELLS FARGO & COMPANY/MN 179,883 16,240,000 0.45%
48 PRUDENTIAL FINANCIAL INC 174,729 15,775,000 0.44%
49 TIAA CREF INVESTMENT MANAGEMENT LLC 171,861 15,516,000 0.43%
50 BANK OF MONTREAL /CAN/ 168,969 15,255,000 0.42%
Page 1 of 5

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.