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bluebird bio Inc (BLUE) Ownership Data

Short Interest History (%)

This is the historical short interest of bluebird bio Inc, as measured by the Short Percentage Of Float.

Date Short Interest
April 15, 201629.1
March 31, 201628.42
March 15, 201628.26
February 29, 201626.69
February 12, 201627.45
January 29, 201622.69
January 15, 201621.39
December 31, 201521.27
December 15, 201519.8
November 30, 201515.09
November 13, 201515.71
October 30, 201513.43
October 15, 201514.62
September 30, 201514.36
September 15, 201513.1
August 31, 201512.88
August 14, 201510.02
July 31, 20158.39
July 15, 20158.78
June 30, 20159.68
June 15, 201511.81
May 29, 201511.06
May 15, 201512.13
April 30, 201510.59
April 15, 201510.11
March 31, 201518.07
March 13, 201518.94
February 27, 201518
February 13, 201517.66
January 30, 201516.24
January 15, 201515.77
December 31, 201414.78
December 15, 201417.38
November 28, 201416.93
November 14, 201416.45
October 31, 201417.46
October 15, 201419.15
September 30, 201417.82
September 15, 201413.19
August 29, 201412.24
August 15, 201414.8
July 31, 201414.3
July 15, 201412.76
June 30, 20146.86
June 13, 201410.01
May 30, 201410.31
May 15, 20149.33
April 30, 20149.85
April 15, 201410.36
March 31, 201411.7
March 14, 201412.61
February 28, 201411.95
February 14, 201412.03
January 31, 201411.79
January 15, 201415.52
December 31, 201318.16
December 13, 201318.66
November 29, 201316.45
November 15, 201314.77
October 31, 201315.12
October 15, 201313.77
September 30, 201310.76
September 13, 20138.85
August 30, 20139.31
August 15, 20136.46
July 31, 20136.29
July 15, 20134.27
June 28, 20131.3

Institutional Ownership History (%)

This the Institutional Ownership History of bluebird bio IncPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership
June 30, 201596.82
March 31, 201596.42
December 31, 201492.88
September 30, 201482.26
June 30, 201478.16
March 31, 201475.69
September 30, 201337.56
June 30, 201333.57

Insider ownership (%)

This is the historical insider ownership of bluebird bio Inc. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.

Date Insider Ownership
March 31, 20161.41
February 29, 20161.42
January 31, 20161.25
December 31, 20151.41
November 30, 20151.24
October 31, 20151.06
September 30, 20151.07
August 31, 20151.07
July 31, 20151.07
June 30, 20151.06
May 31, 20150.95
April 30, 20151.05
March 31, 20151.06
February 28, 20151.06
January 31, 20151.19
December 31, 20141.18
November 30, 20140.97
October 31, 20140.99
September 30, 20141.2
August 31, 20141.18
July 31, 20141.42
June 30, 20141.42
May 31, 20141.76

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Nick LeschlyPresident and CEO336,0440.91%2016-03-01
Dr. Robert Tepper,M.D.N/A89,0170.24%2015-02-03
Dr. Philip D. Gregory,D.Phil.N/A33,000less than 0.1%2016-03-01
Dr. Steven GillisN/A18,633less than 0.1%2015-07-28
Mr. Jeffrey T. WalshCOO14,000less than 0.1%2016-03-01
Dr. Douglas G. Cole, M.D.N/A9,938less than 0.1%2016-03-01
Dr. David Davidson, M.D.Chief Medical Officer9,600less than 0.1%2016-04-15
Mr. Eric M. SullivanPrincipal Accounting Officer5,513less than 0.1%2016-03-01
Dr. John M. Maraganore,PhDN/A5,293less than 0.1%2014-12-19
Mr. David P. SchenkeinN/A1,176less than 0.1%2014-12-19

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
Fidelity Management and Research Company   Premium Plus5,501,5372015-12-3114.91N/A353,309
Baillie Gifford & Co Limited.   Premium Plus4,883,3212015-12-3113.240.55313,607
Capital Research Global Investors   Premium Plus4,452,7412015-12-3112.070.10285,955
Fidelity® Growth Company Fund2,549,1202016-02-296.900.33117,820
Vanguard Group Inc   Premium Plus2,371,5772015-12-316.430.01152,303
Growth Fund of America Inc2,352,0762015-12-316.38N/A151,050
VA CollegeAmerica Growth Fund of America2,117,0762016-03-315.730.0789,976
Capital World Investors   Premium Plus2,075,0002015-12-315.620.04133,257
T. Rowe Price Associates, Inc.   Premium Plus2,005,3032015-12-315.440.03128,781
VA CollegeAmerica Small Cap World1,804,3522016-03-314.890.3276,685

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