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

Institutional Holders (2017Q1)
Portfolio Summary: 232 Institutional holders with a total value of $4,316,059,063.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 6,126,713 556,918,000 12.90%
2 BAILLIE GIFFORD & CO 5,204,633 473,102,000 10.96%
3 Capital Research Global Investors 4,990,045 453,595,000 10.51%
4 VANGUARD GROUP INC 3,215,246 292,266,000 6.77%
5 BlackRock Finance, Inc. 3,182,188 289,259,000 6.70%
6 WELLINGTON MANAGEMENT GROUP LLP 3,134,411 284,917,000 6.60%
7 PRICE T ROWE ASSOCIATES INC /MD/ 3,076,847 279,685,000 6.48%
8 STATE STREET CORP 1,611,032 146,443,000 3.39%
9 Capital World Investors 1,106,255 100,559,000 2.33%
10 OppenheimerFunds, Inc. 972,352 88,387,000 2.05%
11 FRANKLIN RESOURCES INC 965,700 87,782,000 2.03%
12 VICTORY CAPITAL MANAGEMENT INC 936,415 85,120,000 1.97%
13 JENNISON ASSOCIATES LLC 865,458 78,670,000 1.82%
14 BALYASNY ASSET MANAGEMENT L.P. 590,378 53,665,000 1.24%
15 EVENTIDE ASSET MANAGEMENT, LLC 569,700 51,786,000 1.20%
16 NORTHERN TRUST CORP 464,531 42,225,000 0.98%
17 ArrowMark Colorado Holdings LLC 409,295 37,205,000 0.86%
18 NORGES BANK 371,793 33,796,000 0.78%
19 GEODE CAPITAL MANAGEMENT, LLC 355,213 32,288,000 0.75%
20 GOLDMAN SACHS GROUP INC 354,748 32,246,000 0.75%
21 BAKER BROS. ADVISORS LP 351,441 31,946,000 0.74%
22 WELLS FARGO & COMPANY/MN 340,069 30,913,000 0.72%
23 AMERIPRISE FINANCIAL INC 305,496 27,776,000 0.64%
24 DEUTSCHE BANK AG\ 301,313 27,386,000 0.63%
25 SUSQUEHANNA INTERNATIONAL GROUP, LLP 289,600 26,325,000 0.61% Call
26 ORBIMED ADVISORS LLC 283,800 25,797,000 0.60%
27 Alyeska Investment Group, L.P. 279,008 25,362,000 0.59%
28 Artal Group S.A. 250,000 22,725,000 0.53%
29 Invesco Ltd. 230,516 20,954,000 0.49%
30 Bank of New York Mellon Corp 228,663 20,787,000 0.48%
31 MARSHALL WACE ASIA LTD 197,867 18,006,000 0.42%
32 MARSHALL WACE NORTH AMERICA, L.P. 197,867 18,006,000 0.42%
33 PICTET ASSET MANAGEMENT LTD 182,841 16,620,000 0.39%
34 COLUMBUS CIRCLE INVESTORS 177,436 16,129,000 0.37%
35 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 177,243 16,111,388 0.37%
36 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 169,839 15,439,000 0.36%
37 PointState Capital LP 168,362 15,304,000 0.35%
38 Candriam S.C.A. 161,000 14,636,000 0.34%
39 SUSQUEHANNA INTERNATIONAL GROUP, LLP 158,400 14,399,000 0.33% Put
40 Mitsubishi UFJ Trust & Banking Corp 150,830 13,710,000 0.32%
41 1832 Asset Management L.P. 146,600 13,042,000 0.30%
42 TIAA CREF INVESTMENT MANAGEMENT LLC 136,632 12,420,000 0.29%
43 NEW YORK STATE COMMON RETIREMENT FUND 129,709 11,790,000 0.27%
44 CREDIT SUISSE AG/ 127,563 11,596,000 0.27%
45 AXA S.A. 123,866 11,259,000 0.26%
46 TEACHERS ADVISORS, LLC 117,262 10,659,000 0.25%
47 DEERFIELD MANAGEMENT COMPANY, L.P. 107,064 9,732,000 0.23%
48 RTW INVESTMENTS, LP 103,617 9,419,000 0.22%
49 ALLIANCEBERNSTEIN L.P. 85,860 7,805,000 0.18%
50 DIMENSIONAL FUND ADVISORS LP 84,961 7,723,000 0.18%
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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.