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
201 SPOT TRADING LLC /BD 2,859 300,000 0.01%
202 IFP ADVISORS, INC 2,839 298,000 0.01%
203 Winfield Associates, Inc. 2,822 296,000 0.01%
204 Trexquant Investment LP 2,800 294,000 0.01%
205 Natixis Investment Managers International 2,764 290,000 0.01%
206 VIRTUS ETF ADVISERS LLC 2,675 281,000 0.01%
207 BERKELEY CAPITAL PARTNERS, LLC 2,630 276,000 0.01%
208 PEAK6 Group LLC 2,500 263,000 0.00% Call
209 Cubist Systematic Strategies, LLC 2,443 257,000 0.00%
210 Kazazian Asset Management, LLC 2,396 252,000 0.00%
211 AFFINITY INVESTMENT ADVISORS, LLC 2,339 246,000 0.00%
212 Private Advisor Group, LLC 2,531 238,000 0.00%
213 PANAGORA ASSET MANAGEMENT INC 2,227 234,000 0.00%
214 C WorldWide Group Holding A/S 2,100 221,000 0.00%
215 Raymond James Financial Services Advisors, Inc. 2,012 211,000 0.00%
216 FAIRFIELD, BUSH & CO. 2,000 210,000 0.00%
217 CLOUGH CAPITAL PARTNERS L P 2,000 210,000 0.00%
218 RAYMOND JAMES & ASSOCIATES 1,975 207,000 0.00%
219 SG Americas Securities, LLC 1,945 204,000 0.00%
220 BARCLAYS PLC 1,900 200,000 0.00% Put
221 TURNER INVESTMENTS LLC 1,750 184,000 0.00%
222 BANK OF MONTREAL /CAN/ 1,677 176,000 0.00%
223 HAP Trading, LLC 52,600 170,000 0.00% Call
224 Highlander Capital Management, LLC 1,500 158,000 0.00%
225 Zurcher Kantonalbank (Zurich Cantonalbank) 1,481 156,000 0.00%
226 FIRST MERCANTILE TRUST CO 1,409 148,000 0.00%
227 CUTLER GROUP LLC / CA 34,700 142,000 0.00% Put
228 QS Investors, LLC 1,207 127,000 0.00%
229 BARCLAYS PLC 1,100 116,000 0.00% Call
230 D.A. DAVIDSON & CO. 1,050 110,000 0.00%
231 PNC FINANCIAL SERVICES GROUP, INC. 1,010 106,000 0.00%
232 Clearbridge Investments, LLC 1,006 106,000 0.00%
233 SPOT TRADING LLC /BD 1,000 105,000 0.00% Call
234 Creative Planning 714 75,000 0.00%
235 GENEOS WEALTH MANAGEMENT INC. 500 52,000 0.00%
236 BANCO ITAU HOLDING FINANCEIRA S A 484 51,000 0.00%
237 Quantbot Technologies LP 446 46,000 0.00%
238 ADVISOR GROUP, INC. 368 39,000 0.00%
239 HUNTINGTON NATIONAL BANK 360 38,000 0.00%
240 NISA INVESTMENT ADVISORS, LLC 260 27,000 0.00%
241 RESOURCES INVESTMENT ADVISORS, INC. 205 22,000 0.00%
242 First Personal Financial Services 205 22,000 0.00%
243 STEWARD PARTNERS INVESTMENT ADVISORY, LLC 200 21,000 0.00%
244 LADENBURG THALMANN FINANCIAL SERVICES INC. 179 19,000 0.00%
245 AGF INVESTMENTS LLC 178 19,000 0.00%
246 Global X Management CO LLC 180 19,000 0.00%
247 North Star Investment Management Corp. 150 16,000 0.00%
248 SARGENT BICKHAM LAGUDIS LLC 113 12,000 0.00%
249 ENVESTNET ASSET MANAGEMENT INC 107 11,000 0.00%
250 KRILOGY FINANCIAL LLC 100 11,000 0.00%
Page 5 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.