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BLUEBIRD BIO INCORPORATED
BLUEBIRD BIO INCORPORATED. Institutional holdings reported to the SEC.

Institutional Holders (2016Q4)
Portfolio Summary: 227 Institutional holders with a total value of $2,956,055,385.
#
Manager Name
Shares
Value ($)
%
Options
Notes
101 Rock Springs Capital Management LP 28,500 1,758,000 0.06%
102 TIVERTON ASSET MANAGEMENT LLC 27,514 1,698,000 0.06%
103 MANUFACTURERS LIFE INSURANCE COMPANY, THE 26,901 1,660,000 0.06%
104 Nuveen Asset Management, LLC 25,359 1,565,000 0.05%
105 DRIEHAUS CAPITAL MANAGEMENT LLC 24,984 1,542,000 0.05%
106 ADVISORY RESEARCH INC 24,384 1,504,000 0.05%
107 Virtu KCG Holdings LLC 24,244 1,496,000 0.05%
108 RUSSELL INVESTMENTS GROUP, LTD. 23,796 1,477,000 0.05%
109 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 22,980 1,418,000 0.05%
110 PRINCIPAL FINANCIAL GROUP INC 22,499 1,388,000 0.05%
111 JANE STREET GROUP, LLC 21,610 1,333,000 0.05%
112 AMERICAN INTERNATIONAL GROUP, INC. 21,304 1,314,000 0.04%
113 TURNER INVESTMENTS LLC 21,020 1,297,000 0.04%
114 Century Capital Management, LLC 20,643 1,274,000 0.04%
115 BARCLAYS PLC 20,600 1,271,000 0.04% Call
116 BOKF, NA 20,487 1,264,000 0.04%
117 PARAMETRIC PORTFOLIO ASSOCIATES LLC 20,405 1,259,000 0.04%
118 JANE STREET GROUP, LLC 20,000 1,234,000 0.04% Call
119 PROFUND ADVISORS LLC 19,566 1,207,000 0.04%
120 CUTLER GROUP LLC / CA 18,151 1,119,000 0.04%
121 ELKFORK PARTNERS LLC 17,238 1,064,000 0.04%
122 MARTINGALE ASSET MANAGEMENT L P 16,908 1,044,000 0.04%
123 VOYA INVESTMENT MANAGEMENT LLC 15,430 952,000 0.03%
124 Spot Trading L.L.C 15,400 950,000 0.03% Call
125 CHARTWELL INVESTMENT PARTNERS, LLC 15,240 940,000 0.03%
126 Sivik Global Healthcare LLC 15,000 926,000 0.03%
127 GLEN HARBOR CAPITAL MANAGEMENT LLC 14,196 876,000 0.03%
128 SG Americas Securities, LLC 14,115 871,000 0.03%
129 PEAK6 Group LLC 14,100 870,000 0.03% Call
130 Legal & General Group Plc 13,587 839,000 0.03%
131 SCHRODER INVESTMENT MANAGEMENT GROUP 12,804 790,000 0.03%
132 JANE STREET GROUP, LLC 12,600 777,000 0.03% Put
133 AMERICAN CENTURY COMPANIES INC 12,084 746,000 0.03%
134 KBC Group NV 11,969 738,000 0.02%
135 BANK OF AMERICA CORP /DE/ 11,700 722,000 0.02% Call
136 HANSEATIC MANAGEMENT SERVICES INC 11,650 719,000 0.02%
137 MACQUARIE GROUP LTD 11,400 703,000 0.02%
138 MEADOW CREEK INVESTMENT MANAGEMENT LLC 11,154 688,000 0.02%
139 Vident Investment Advisory, LLC 10,385 641,000 0.02%
140 Neuberger Berman Group LLC 10,300 636,000 0.02%
141 CITADEL ADVISORS LLC 9,400 580,000 0.02% Put
142 WOODSTOCK CORP 9,090 561,000 0.02%
143 CLOUGH CAPITAL PARTNERS L P 9,000 555,000 0.02%
144 DAFNA Capital Management LLC 9,000 555,000 0.02%
145 CORNERSTONE CAPITAL MANAGEMENT HOLDINGS LLC. 8,400 517,000 0.02%
146 FLINTON CAPITAL MANAGEMENT LLC 8,112 501,000 0.02%
147 GROUP ONE TRADING LLC 7,941 490,000 0.02%
148 CLARIUS GROUP, LLC 7,881 486,000 0.02%
149 HSBC HOLDINGS PLC 7,693 475,000 0.02%
150 Geduld E E 7,300 450,000 0.02%
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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.