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

Institutional Holders (2017Q2)
Portfolio Summary: 267 Institutional holders with a total value of $5,282,197,255.
#
Manager Name
Shares
Value ($)
%
Options
Notes
151 Crestline Management, LP 9,859 1,036,000 0.02%
152 CHARTWELL INVESTMENT PARTNERS, LLC 9,699 1,019,000 0.02%
153 USCA RIA LLC 9,440 992,000 0.02%
154 WOODSTOCK CORP 9,090 955,000 0.02%
155 CRAWFORD LAKE CAPITAL MANAGEMENT, LLC 9,000 945,000 0.02%
156 Squarepoint Ops LLC 8,800 924,000 0.02%
157 FLINTON CAPITAL MANAGEMENT LLC 8,592 903,000 0.02%
158 FOX RUN MANAGEMENT, L.L.C. 8,600 903,000 0.02%
159 Peregrine Asset Advisers, Inc. 8,390 881,000 0.02%
160 DAFNA Capital Management LLC 8,000 840,000 0.02%
161 CUTLER GROUP LLC / CA 7,902 830,000 0.02%
162 STRS OHIO 7,400 777,000 0.01%
163 J. Goldman & Co LP 7,350 772,000 0.01%
164 CLARIUS GROUP, LLC 7,281 765,000 0.01%
165 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 7,118 748,000 0.01%
166 TWO SIGMA ADVISERS, LP 6,600 693,000 0.01%
167 CAPITAL FUND MANAGEMENT S.A. 6,500 683,000 0.01% Call
168 Parametrica Management Ltd 6,235 655,000 0.01%
169 Mirae Asset Global Investments Co., Ltd. 5,643 593,000 0.01%
170 COMMERZBANK AKTIENGESELLSCHAFT /FI 5,565 585,000 0.01%
171 AMALGAMATED BANK 5,232 550,000 0.01%
172 CUTLER GROUP LLC / CA 47,700 546,000 0.01% Call
173 BNP PARIBAS FINANCIAL MARKETS 5,114 537,226 0.01%
174 Aperio Group, LLC 5,001 525,000 0.01%
175 NATIONAL PLANNING CORP 4,910 517,000 0.01%
176 A.R.T. Advisors, LLC 4,800 504,000 0.01%
177 ROYAL BANK OF CANADA 4,739 498,000 0.01%
178 PARADIGM ASSET MANAGEMENT CO LLC 4,600 483,230 0.01%
179 BlueCrest Capital Management Ltd 4,556 479,000 0.01%
180 DUMONT & BLAKE INVESTMENT ADVISORS LLC 4,500 473,000 0.01%
181 CANADA LIFE ASSURANCE Co 4,509 473,000 0.01%
182 TUDOR INVESTMENT CORP ET AL 4,149 436,000 0.01%
183 CRAWFORD LAKE CAPITAL MANAGEMENT, LLC 4,000 420,000 0.01% Call
184 WEDBUSH SECURITIES INC 3,975 418,000 0.01%
185 ALPINE GROUP USVI, LLC 3,900 410,000 0.01%
186 Alpine Global Management, LLC 3,900 410,000 0.01%
187 PRUDENTIAL FINANCIAL INC 3,882 408,000 0.01%
188 Ameritas Investment Partners, Inc. 3,600 378,000 0.01%
189 DUPONT CAPITAL MANAGEMENT CORP 3,535 371,000 0.01%
190 Nuveen Asset Management, LLC 3,455 363,000 0.01%
191 SMITH ASSET MANAGEMENT GROUP LP 3,420 359,000 0.01%
192 WEXFORD CAPITAL LP 3,300 347,000 0.01%
193 TEACHER RETIREMENT SYSTEM OF TEXAS 3,250 341,000 0.01%
194 CAPTRUST FINANCIAL ADVISORS 3,237 340,000 0.01%
195 ARTHUR M. COHEN & ASSOCIATES, LLC 3,213 338,000 0.01%
196 Geneva Advisors, LLC 3,205 337,000 0.01%
197 BB&T SECURITIES, LLC 3,030 318,000 0.01%
198 TWO SIGMA INVESTMENTS, LP 3,000 315,000 0.01% Call
199 CAPITAL FUND MANAGEMENT S.A. 2,900 305,000 0.01% Put
200 Winslow, Evans & Crocker, Inc. 2,900 304,645 0.01%
Page 4 of 6

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.