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

Institutional Holders (2014Q2)
Portfolio Summary: 108 Institutional holders with a total value of $722,347,972.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 3,674,395 141,721,000 19.62%
2 Capital Research Global Investors 3,002,715 115,815,000 16.03%
3 Third Rock Ventures, LLC 2,416,974 93,223,000 12.91%
4 DEERFIELD MANAGEMENT COMPANY, L.P. 1,075,268 41,473,000 5.74%
5 BlackRock Fund Advisors 759,913 29,310,000 4.06%
6 JENNISON ASSOCIATES LLC 618,662 23,862,000 3.30%
7 RA CAPITAL MANAGEMENT, L.P. 503,062 19,403,000 2.69%
8 Point72 Asset Management, L.P. 491,400 18,953,000 2.62%
9 VANGUARD GROUP INC 401,904 15,502,000 2.15%
10 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 377,039 14,542,000 2.01%
11 QVT Financial LP 366,600 14,140,000 1.96%
12 FRANKLIN RESOURCES INC 338,532 13,057,000 1.81%
13 GOLDMAN SACHS GROUP INC 317,044 12,228,000 1.69%
14 RS INVESTMENT MANAGEMENT CO LLC 300,549 11,592,000 1.60%
15 PointState Capital LP 275,000 10,607,000 1.47%
16 STATE STREET CORP 250,626 9,668,000 1.34%
17 Artal Group S.A. 250,000 9,643,000 1.33%
18 BlackRock Institutional Trust Company, N.A. 207,071 7,987,000 1.11%
19 BAKER BROS. ADVISORS LP 198,260 7,647,000 1.06%
20 ORACLE INVESTMENT MANAGEMENT INC 178,937 6,901,600 0.96%
21 FRED ALGER MANAGEMENT, LLC 172,778 6,664,000 0.92%
22 MILLENNIUM MANAGEMENT LLC 141,464 5,456,000 0.76%
23 KINGDON CAPITAL MANAGEMENT, L.L.C. 132,000 5,091,000 0.70%
24 LORD, ABBETT & CO. LLC 119,076 4,593,000 0.64%
25 DEUTSCHE BANK AG\ 105,633 4,073,000 0.56%
26 TIAA CREF INVESTMENT MANAGEMENT LLC 104,601 4,034,000 0.56%
27 NORTHERN TRUST CORP 93,116 3,591,000 0.50%
28 COWEN INC. 92,408 3,564,000 0.49%
29 DRIEHAUS CAPITAL MANAGEMENT LLC 83,304 3,213,000 0.44%
30 EverPoint Asset Management, LLC 80,000 3,086,000 0.43%
31 EVENTIDE ASSET MANAGEMENT, LLC 76,900 2,966,000 0.41%
32 Bank of New York Mellon Corp 76,768 2,961,000 0.41%
33 Weiss Multi-Strategy Advisers LLC 70,000 2,700,000 0.37%
34 BLACKROCK ADVISORS LLC 60,589 2,337,000 0.32%
35 BlackRock Investment Management, LLC 58,044 2,239,000 0.31%
36 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 54,800 2,114,000 0.29%
37 GEODE CAPITAL MANAGEMENT, LLC 54,582 2,105,000 0.29%
38 Tekla Capital Management LLC 54,527 2,103,000 0.29%
39 GOLDMAN SACHS GROUP INC 52,600 2,029,000 0.28% Call
40 MUFG Securities EMEA plc 52,500 2,024,925 0.28%
41 PRINCIPAL FINANCIAL GROUP INC 52,297 2,017,000 0.28%
42 CREDIT SUISSE AG/ 51,996 2,006,000 0.28%
43 SUSQUEHANNA INTERNATIONAL GROUP, LLP 51,600 1,990,000 0.28% Put
44 Cupps Capital Management, LLC 51,495 1,986,000 0.27%
45 BANK OF AMERICA CORP /DE/ 50,342 1,942,000 0.27%
46 GREEN ARROW CAPITAL MANAGEMENT LLC 50,000 1,929,000 0.27%
47 FIDUCIARY TRUST CO 49,729 1,918,000 0.27%
48 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 34,800 1,342,000 0.19%
49 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 33,146 1,279,000 0.18%
50 Invesco Ltd. 32,770 1,264,000 0.17%
Page 1 of 3

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.