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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
101 SUSQUEHANNA INTERNATIONAL GROUP, LLP 52,999 5,792,000 0.13%
102 Retirement Systems of Alabama 50,716 5,543,000 0.13%
103 BlackRock Group LTD 49,342 5,394,000 0.12%
104 Portolan Capital Management, LLC 47,720 5,215,000 0.12%
105 DRIEHAUS CAPITAL MANAGEMENT LLC 47,508 5,192,000 0.12%
106 UNITED SERVICES AUTOMOBILE ASSOCIATION 47,440 5,185,000 0.12%
107 UBS Group AG 47,001 5,136,000 0.12%
108 Redwood Investments, LLC 45,927 5,019,000 0.11% SH
109 CITADEL ADVISORS LLC 40,400 4,416,000 0.10%
110 State of Tennessee, Department of Treasury 40,000 4,372,000 0.10%
111 TURNER INVESTMENTS LLC 39,000 4,262,000 0.10%
112 METROPOLITAN LIFE INSURANCE CO/NY 38,755 4,236,000 0.10%
113 TEACHERS ADVISORS, LLC 37,828 4,134,000 0.09%
114 SUSQUEHANNA INTERNATIONAL GROUP, LLP 36,900 4,033,000 0.09% Put
115 BLACKROCK ADVISORS LLC 36,169 3,953,000 0.09%
116 IRONBRIDGE CAPITAL MANAGEMENT LP 33,700 3,683,000 0.08%
117 Weiss Multi-Strategy Advisers LLC 32,974 3,604,000 0.08%
118 FEDERATED HERMES, INC. 32,485 3,550,000 0.08%
119 Gerstein Fisher 32,426 3,544,000 0.08%
120 GW&K Investment Management, LLC 31,251 3,415,000 0.08%
121 COMERICA BANK 27,185 3,353,000 0.08%
122 TEXAS PERMANENT SCHOOL FUND CORP 30,062 3,285,000 0.07%
123 AQR CAPITAL MANAGEMENT LLC 29,672 3,242,000 0.07%
124 LMR Partners LLP 28,996 3,169,000 0.07%
125 Timpani Capital Management LLC 28,808 3,148,000 0.07%
126 Raymond James Financial Services Advisors, Inc. 28,462 3,111,000 0.07%
127 JPMORGAN CHASE & CO 26,896 2,939,000 0.07%
128 STATE OF WISCONSIN INVESTMENT BOARD 26,880 2,938,000 0.07%
129 Informed Momentum Co LLC 25,410 2,777,000 0.06%
130 ALLIANCEBERNSTEIN L.P. 25,206 2,755,000 0.06%
131 CANADA LIFE ASSURANCE Co 23,381 2,554,000 0.06%
132 HANSEATIC MANAGEMENT SERVICES INC 23,141 2,529,000 0.06%
133 PEAK6 Group LLC 22,900 2,503,000 0.06% Put
134 RIVERHEAD CAPITAL MANAGEMENT LLC 61,116 2,401,000 0.05%
135 Virtu KCG Holdings LLC 20,033 2,189,000 0.05%
136 Quantitative Investment Management, LLC 19,900 2,174,000 0.05%
137 FORTALEZA ASSET MANAGEMENT INC/ 18,980 2,074,000 0.05%
138 Allen Investment Management, LLC 18,879 2,063,000 0.05%
139 FIRST TRUST ADVISORS LP 18,762 2,050,000 0.05%
140 BlackRock Finance, Inc. 18,331 2,003,000 0.05%
141 BANK OF NOVA SCOTIA 18,130 1,982,000 0.04%
142 GSA CAPITAL PARTNERS LLP 18,051 1,973,000 0.04%
143 MASON STREET ADVISORS, LLC 17,930 1,960,000 0.04%
144 Arizona State Retirement System 17,500 1,913,000 0.04%
145 Municipal Employees' Retirement System of Michigan 17,420 1,904,000 0.04%
146 Liberty Mutual Group Asset Management Inc. 16,946 1,853,000 0.04%
147 STEPHENS INC /AR/ 16,545 1,808,000 0.04%
148 BNP PARIBAS FINANCIAL MARKETS 16,062 1,755,416 0.04%
149 STATE OF MICHIGAN RETIREMENT SYSTEM 15,800 1,727,000 0.04%
150 Advisors Asset Management, Inc. 15,589 1,704,000 0.04%
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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.