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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
August 14, 20158.85
July 31, 20159.38
July 15, 201510
June 30, 20158.61
June 15, 20157.74
May 29, 20158.05
May 15, 20159.44
April 30, 20159.51
April 15, 20159.24
March 31, 20158.47
March 13, 201512.35
February 27, 201512.15
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
June 30, 201572
March 31, 201566
December 31, 201463
September 30, 201461
June 30, 201460
March 31, 201481
December 31, 201361
September 30, 201346
June 30, 201346
March 31, 201375
December 31, 201231
September 30, 201227
June 30, 201224
March 31, 201275

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
July 31, 20152
June 30, 20152
May 31, 20152
April 30, 20152
March 31, 20152
February 28, 20152
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% Owner744,5331.7%2012-08-17
Dr. Prabhavathi Fernandes, PhDPresident and CEO247,6780.56%2015-05-22
John H. JohnsonDirector10,000less than 0.1%2014-05-23
Dr. David Oldach, PhDN/A3,300less than 0.1%2015-01-08
Mr. David MooreN/A1,000less than 0.1%2015-03-04
Dr. Richard S. Kent,M.D.Director392less than 0.1%2015-08-06
Dr. Dov A. Goldstein, M.D.Director50less than 0.1%2015-06-22

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
Quaker BioVentures Capital II, LLC3,527,1542014-03-3110.62N/A40,739
Intersouth Partners3,316,2862014-03-319.99N/A38,303
Aisling Capital Partners LLC2,193,0602015-05-145.03N/A69,059
Aisling Capital LLC   Premium Plus2,193,0602015-06-305.0311.2275,354
Wasatch Advisors Inc.   Premium Plus2,118,4222015-06-304.860.7972,789
Bb Biotech AG1,766,9002015-06-304.061.4560,778
BB Biotech AG   Premium Plus1,766,9002015-06-304.051.6560,711
Bellevue Asset Management AG1,766,9002015-06-304.061.4560,778
Vanguard Group, Inc.   Premium Plus1,588,5452015-06-303.64N/A54,582
State Street Corp   Premium Plus1,483,9002015-06-303.400.0150,986

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