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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
1 FMR LLC 6,713,949 705,301,000 13.35%
2 Capital Research Global Investors 5,483,117 576,001,000 10.90%
3 BAILLIE GIFFORD & CO 5,400,658 567,339,000 10.74%
4 WELLINGTON MANAGEMENT GROUP LLP 3,734,843 392,345,000 7.43%
5 VANGUARD GROUP INC 3,559,102 373,884,000 7.08%
6 BlackRock Finance, Inc. 3,320,329 348,801,000 6.60%
7 PRICE T ROWE ASSOCIATES INC /MD/ 2,918,472 306,585,000 5.80%
8 STATE STREET CORP 1,456,088 152,972,000 2.90%
9 Capital World Investors 1,106,255 116,212,000 2.20%
10 VICTORY CAPITAL MANAGEMENT INC 983,271 103,292,000 1.96%
11 OppenheimerFunds, Inc. 977,231 102,658,000 1.94%
12 JENNISON ASSOCIATES LLC 798,939 83,929,000 1.59%
13 EVENTIDE ASSET MANAGEMENT, LLC 569,700 59,847,000 1.13%
14 NORTHERN TRUST CORP 518,673 54,487,000 1.03%
15 FRANKLIN RESOURCES INC 486,000 51,054,000 0.97%
16 GOLDMAN SACHS GROUP INC 485,912 51,045,000 0.97%
17 ArrowMark Colorado Holdings LLC 430,462 45,220,000 0.86%
18 SUSQUEHANNA INTERNATIONAL GROUP, LLP 411,100 43,186,000 0.82% Call
19 ORBIMED ADVISORS LLC 399,800 41,999,000 0.80%
20 BALYASNY ASSET MANAGEMENT L.P. 389,181 40,883,000 0.77%
21 NORGES BANK 383,254 40,261,000 0.76%
22 GEODE CAPITAL MANAGEMENT, LLC 373,382 39,223,000 0.74%
23 MARSHALL WACE NORTH AMERICA, L.P. 348,351 36,577,000 0.69%
24 AMERIPRISE FINANCIAL INC 339,679 35,684,000 0.68%
25 BAKER BROS. ADVISORS LP 301,441 31,666,000 0.60%
26 WELLS FARGO & COMPANY/MN 296,423 31,140,000 0.59%
27 Cormorant Asset Management, LP 275,000 28,889,000 0.55% SH
28 DEUTSCHE BANK AG\ 257,829 27,083,000 0.51%
29 Artal Group S.A. 250,000 26,263,000 0.50%
30 TEACHERS ADVISORS, LLC 249,475 26,207,000 0.50%
31 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 236,359 24,829,512 0.47%
32 Bank of New York Mellon Corp 228,114 23,964,000 0.45%
33 VOYA INVESTMENT MANAGEMENT LLC 217,398 22,837,000 0.43%
34 TIAA CREF INVESTMENT MANAGEMENT LLC 216,219 22,714,000 0.43%
35 Laurion Capital Management LP 200,853 21,100,000 0.40%
36 EMERALD ADVISERS, LLC 196,174 20,608,000 0.39%
37 SUSQUEHANNA INTERNATIONAL GROUP, LLP 192,600 20,233,000 0.38% Put
38 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 175,532 18,440,000 0.35%
39 Invesco Ltd. 163,652 17,191,000 0.33%
40 EMERALD MUTUAL FUND ADVISERS TRUST 152,174 15,986,000 0.30%
41 NEW YORK STATE COMMON RETIREMENT FUND 148,254 15,574,000 0.29%
42 Mitsubishi UFJ Trust & Banking Corp 145,980 15,335,000 0.29%
43 1832 Asset Management L.P. 142,600 14,672,000 0.28%
44 VOLORIDGE INVESTMENT MANAGEMENT, LLC 132,590 13,929,000 0.26%
45 PICTET ASSET MANAGEMENT LTD 176,326 13,286,000 0.25%
46 MONASHEE INVESTMENT MANAGEMENT LLC 125,000 13,131,000 0.25%
47 ARK INVESTMENT MANAGEMENT LLC 119,683 12,573,000 0.24%
48 MORGAN STANLEY 106,716 11,210,000 0.21%
49 DIMENSIONAL FUND ADVISORS LP 106,189 11,158,000 0.21%
50 Quantitative Investment Management, LLC 104,800 11,009,000 0.21%
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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.