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

Institutional Holders (2015Q4)
Portfolio Summary: 219 Institutional holders with a total value of $2,602,224,824.
#
Manager Name
Shares
Value ($)
%
Options
Notes
101 Asset Management One Co., Ltd. 25,029 1,656,000 0.06%
102 PROFUND ADVISORS LLC 25,766 1,655,000 0.06%
103 ALLIANCEBERNSTEIN L.P. 19,320 1,653,000 0.06%
104 Cubist Systematic Strategies, LLC 25,490 1,637,000 0.06%
105 TUDOR INVESTMENT CORP ET AL 25,000 1,605,000 0.06%
106 CITIGROUP INC 23,900 1,535,000 0.06% Call
107 BlackRock Group LTD 22,179 1,425,000 0.05%
108 CITADEL ADVISORS LLC 22,114 1,420,000 0.05%
109 Creative Planning 21,975 1,411,000 0.05%
110 CABOT WEALTH MANAGEMENT INC 21,614 1,388,000 0.05%
111 PRINCIPAL FINANCIAL GROUP INC 20,534 1,318,000 0.05%
112 WILLIAMS JONES & ASSOCIATES LLC 20,110 1,291,000 0.05%
113 ROYAL BANK OF CANADA 20,000 1,284,000 0.05% Call
114 ROYAL BANK OF CANADA 20,000 1,284,000 0.05% Put
115 CASDIN CAPITAL, LLC 20,000 1,284,000 0.05% Call
116 Rock Springs Capital Management LP 20,000 1,284,000 0.05%
117 WOODSTOCK CORP 19,611 1,259,000 0.05%
118 Nicholas Investment Partners, LP 18,329 1,177,000 0.05%
119 BLACKROCK ADVISORS LLC 17,624 1,132,000 0.04%
120 BlackRock Investment Management, LLC 17,389 1,117,000 0.04%
121 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 17,256 1,108,000 0.04%
122 BRIGHTON JONES LLC 16,582 1,065,000 0.04%
123 JANE STREET GROUP, LLC 16,400 1,053,000 0.04% Call
124 ESSEX INVESTMENT MANAGEMENT CO LLC 16,297 1,047,000 0.04%
125 VOYA INVESTMENT MANAGEMENT LLC 15,771 1,013,000 0.04%
126 Allianz Asset Management GmbH 15,510 1,002,000 0.04%
127 BOKF, NA 15,242 979,000 0.04%
128 PARAMETRIC PORTFOLIO ASSOCIATES LLC 14,440 927,000 0.04%
129 JANE STREET GROUP, LLC 12,500 803,000 0.03% Put
130 Vident Investment Advisory, LLC 12,285 789,000 0.03%
131 CORNERSTONE CAPITAL MANAGEMENT HOLDINGS LLC. 11,492 738,000 0.03%
132 Partner Investment Management, L.P. 11,228 721,000 0.03%
133 Spot Trading L.L.C 10,900 700,000 0.03% Call
134 Spot Trading L.L.C 10,300 661,000 0.03% Put
135 FT OPTIONS LLC 10,021 644,000 0.02%
136 FIDUCIARY TRUST CO 10,000 642,000 0.02%
137 Numeric Investors LLC 9,100 584,000 0.02%
138 LANDSCAPE CAPITAL MANAGEMENT, L.L.C. 8,885 571,000 0.02%
139 PICTET ASSET MANAGEMENT LTD 8,500 546,000 0.02%
140 IBM Retirement Fund 8,312 534,000 0.02%
141 CAPITAL FUND MANAGEMENT S.A. 8,000 514,000 0.02% Put
142 FEDERATED HERMES, INC. 8,000 514,000 0.02%
143 AMERICAN INTERNATIONAL GROUP, INC. 7,758 498,000 0.02%
144 SIMPLEX TRADING, LLC 7,752 497,000 0.02%
145 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 6,943 446,000 0.02%
146 CAPITAL FUND MANAGEMENT S.A. 6,400 411,000 0.02% Call
147 Utah Retirement Systems 6,400 411,000 0.02%
148 Geduld E E 6,300 405,000 0.02%
149 Quantbot Technologies LP 6,310 405,000 0.02%
150 DAFNA Capital Management LLC 6,000 385,000 0.01% SH
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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.