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Cempra Inc (CEMP)Ownership Data

Short Interest History (%)

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

Date Short Interest
February 13, 201511.79
January 30, 201512.24
January 15, 201513.38
December 31, 201410.74
December 15, 201411.32
November 28, 201412.42
November 14, 201412.04
October 31, 201412.74
October 15, 201412.89
September 30, 201412.76
September 15, 201412.49
August 29, 201413.43
August 15, 201413.55
July 31, 201413.29
July 15, 201412.17
June 30, 201411.29
June 13, 201411.2
May 30, 201411.63
May 15, 201412.25
April 30, 201411.33
April 15, 201410.43
March 31, 20149.83
March 14, 201416.32
February 28, 201411.78
February 14, 201412.83
January 31, 201411.73
January 15, 201411.96
December 31, 201312.13
December 13, 20139.97
November 29, 20139.7
November 15, 201310.1
October 31, 20138.85
October 15, 20138.41
September 30, 20137
September 13, 20136.56
August 30, 20135.95
August 15, 20135.72
July 31, 20134.9
July 15, 20135.04
June 28, 20132.65
June 14, 20133.46
May 31, 20131.74
May 15, 20132.2
April 30, 20132.44
April 15, 20132.22
March 28, 20132.71
March 15, 20132.82
February 28, 20132.71
February 15, 20132.6
January 31, 20132.32
January 15, 20132.18
December 31, 20122.28
December 14, 20122.29
November 30, 20122.18
November 15, 20122.13
October 31, 20121.89
October 15, 20121.94
September 28, 20121.89
September 14, 20122.02
August 31, 20122.02
August 15, 20121.62
July 31, 20121.58
July 13, 20121.69
June 29, 20121.74
June 15, 20121.72
May 31, 20121.65
May 15, 20121.54
April 30, 20121.41
April 13, 20121.27
March 30, 20120.07
March 15, 20120.05
February 29, 20120.34
February 15, 20120.03

Institutional Ownership History (%)

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

Date Institutional Ownership
January 31, 201591
December 31, 201492
November 30, 201488
October 31, 201488
September 30, 201493
August 31, 201493
July 31, 201493
June 30, 201482
May 31, 201482
April 30, 201481
March 31, 201482
February 28, 201482
January 31, 201482
December 31, 201382
November 30, 201376
October 31, 201376
September 30, 201378
August 31, 201378
July 31, 201378
June 30, 201376
May 31, 201375
April 30, 201376
March 31, 201355
January 31, 201376
December 31, 201265
November 30, 201265
October 31, 201276
September 30, 201273
August 31, 201273
July 31, 201273
June 30, 201273
May 31, 201227
April 30, 201227
March 31, 20122

Insider ownership (%)

This is the historical insider ownership of Cempra 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
January 31, 20153
December 31, 20143
November 30, 20143
October 31, 20143
September 30, 20143
August 31, 20143
July 31, 20143
June 30, 20143
May 31, 20143

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
I. Wistar Morris,IIIDirector, 10% Owner744,5332.08%2012-08-17
Dr. Prabhavathi Fernandes, PhDPresident and CEO219,2890.61%2015-01-01
John H. JohnsonDirector10,000less than 0.1%2014-05-23
Dr. David Oldach, PhDN/A3,300less than 0.1%2015-01-08

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Quaker BioVentures Capital II, LLC3,527,1542014-03-3110.620.0040,738,629
Wasatch Advisors Inc.3,333,2142014-12-318.890.8178,364,000
Intersouth Partners3,316,2862014-03-319.990.0038,303,103
Aisling Capital LLC3,293,0602014-12-318.7911.7477,420,000
Aisling Capital Partners LLC3,293,0602014-03-319.920.0038,034,843
Wasatch Small Cap Growth Fund1,752,4282014-12-314.681.7741,199,582
Ontario Teachers Pension Plan Board1,209,5062014-12-313.230.2228,435,000
BlackRock Fund Advisors1,109,4342014-12-312.960.0126,083,000
Pyramis Global Advisors, LLC789,8522014-12-312.110.0318,569,000
Bb Biotech AG775,0002014-12-312.070.5018,215,670

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