Switch to:

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 (%)Short Interest (Shares in Mil)
November 15, 201622.167.73
October 31, 201628.259.85
October 14, 201625.638.94
September 30, 201624.558.56
September 15, 201624.528.55
August 31, 201623.528.20
August 15, 201623.488.19
July 29, 201624.698.61
July 15, 201624.568.57
June 30, 201624.248.45
June 15, 201623.928.34
May 31, 201624.418.51
May 13, 201624.178.43
April 29, 201624.448.52
April 15, 201624.788.64
March 31, 201625.788.99
March 15, 201626.319.18
February 29, 201624.648.59
February 12, 201625.368.42
January 29, 201622.927.61
January 15, 201621.597.17
December 31, 201524.378.09
December 15, 201526.348.75
November 30, 201526.038.64
November 13, 201528.529.47
October 30, 201529.719.87
October 15, 201512.174.04
September 30, 201510.453.47
September 15, 20159.313.09
August 31, 20159.323.09
August 14, 20158.852.94
July 31, 20159.383.11
July 15, 2015103.32
June 30, 20158.612.86
June 15, 20157.742.57
May 29, 20158.052.67
May 15, 20159.443.13
April 30, 20159.513.16
April 15, 20159.243.07
March 31, 20158.472.81
March 13, 201512.352.82
February 27, 201512.152.78
February 13, 201511.792.69
January 30, 201512.242.80
January 15, 201513.383.06
December 31, 201410.742.46
December 15, 201411.322.59
November 28, 201412.422.84
November 14, 201412.042.75
October 31, 201412.742.91
October 15, 201412.892.95
September 30, 201412.762.92
September 15, 201412.492.86
August 29, 201413.433.07
August 15, 201413.553.10
July 31, 201413.293.04
July 15, 201412.172.78
June 30, 201411.292.58
June 13, 201411.22.56
May 30, 201411.632.66
May 15, 201412.252.80
April 30, 201411.332.59
April 15, 201410.432.39
March 31, 20149.832.25
March 14, 201416.322.00
February 28, 201411.781.45
February 14, 201412.831.58
January 31, 201411.731.44
January 15, 201411.961.47
December 31, 201312.131.49
December 13, 20139.971.23
November 29, 20139.71.19
November 15, 201310.11.24
October 31, 20138.851.09
October 15, 20138.411.03
September 30, 201370.86
September 13, 20136.560.81
August 30, 20135.950.73
August 15, 20135.720.70
July 31, 20134.90.60
July 15, 20135.040.62
June 28, 20132.650.32
June 14, 20133.460.42
May 31, 20131.740.21
May 15, 20132.20.27
April 30, 20132.440.30
April 15, 20132.220.27
March 28, 20132.710.24
March 15, 20132.820.25
February 28, 20132.710.24
February 15, 20132.60.23
January 31, 20132.320.20
January 15, 20132.180.19
December 31, 20122.280.20
December 14, 20122.290.20
November 30, 20122.180.19
November 15, 20122.130.19
October 31, 20121.890.17
October 15, 20121.940.17
September 28, 20121.890.16
September 14, 20122.020.18
August 31, 20122.020.18
August 15, 20121.620.14
July 31, 20121.580.14
July 13, 20121.690.15
June 29, 20121.740.15
June 15, 20121.720.15
May 31, 20121.650.14
May 15, 20121.540.13
April 30, 20121.410.12
April 13, 20121.270.11
March 30, 20120.070.01
March 15, 20120.050.01
February 29, 20120.340.04
February 15, 20120.030.00

Institutional Ownership History (%)

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

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
September 30, 201677.1540.42
June 30, 201684.5542.89
March 31, 201688.3642.62
December 31, 201586.337.96
September 30, 201593.0632.55
June 30, 201573.4332.22
March 31, 201565.5228.55
December 31, 201462.6923.51
September 30, 201461.3421.06
June 30, 201460.7720.21
March 31, 201480.826.85
December 31, 201361.4120.36
September 30, 201346.315.39
June 30, 201346.0115.19
March 31, 201375.4518.79
December 31, 201231.057.74
September 30, 201226.675.61
June 30, 201223.885.03
March 31, 201274.6315.70

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 (%)Insider Ownership (Shares in Mil)
October 31, 20161.951.01
September 30, 20161.941.01
August 31, 20161.941.01
July 31, 20162.11.01
June 30, 20162.11.01
May 31, 20162.11.01
April 30, 20162.11.01
March 31, 20162.11.01
February 29, 20162.31.01
January 31, 20162.31.01
December 31, 20152.11.01
November 30, 20152.31.01
October 31, 20152.31.01
September 30, 20152.31.01
August 31, 20152.31.01
July 31, 20152.291.01
June 30, 20152.291.01
May 31, 20152.291.01
April 30, 20152.240.98
March 31, 20152.250.98
February 28, 20152.250.98
January 31, 20152.730.98
December 31, 20142.650.95
November 30, 20142.720.97
October 31, 20142.720.97
September 30, 20142.930.97
August 31, 20142.930.97
July 31, 20142.930.97
June 30, 20142.930.97
May 31, 20142.930.97

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
I. Wistar Morris,IIIN/A744,5331.42%2012-08-17
Dr. Prabhavathi Fernandes, PhDN/A247,6780.47%2016-01-01
John H. JohnsonN/A10,000less than 0.1%2016-01-01
Dr. Garheng Kong, PhDN/A2,830less than 0.1%2016-01-01
P. Sherrill NeffN/A2,488less than 0.1%2016-10-05
Mr. Michael R. DoughertyN/A2,000less than 0.1%2016-01-01
Mr. David MooreChief Commercial Officer1,500less than 0.1%2016-03-01
Dr. David Oldach, PhDChief Medical Officer1,100less than 0.1%2016-01-01
Dr. Richard S. Kent,M.D.N/A392less than 0.1%2015-03-04
Dr. Dov A. Goldstein, M.D.Director95less than 0.1%2016-03-07

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
Wasatch Advisors Inc.   Premium Plus1,924,3382016-09-303.670.6946,569
BB Biotech AG   Premium Plus2,041,9002016-09-303.901.7449,414
Palo Alto Investors, LLC   Premium Plus2,844,4832016-09-305.434.0068,836
TimesSquare Capital Management, LLC   Premium Plus1,931,3602016-09-303.690.3046,739
Vanguard Group Inc   Premium Plus3,369,8162016-09-306.43N/A81,550
BlackRock Fund Advisors   Premium Plus1,826,1822016-09-303.490.0144,194
Fidelity Management and Research Company   Premium Plus6,812,5242016-09-3013.010.02164,863
Fidelity® Select Biotechnology Portfolio4,396,6742016-10-318.390.8079,690
Bb Biotech AG2,041,9002016-06-304.041.2633,771
Bellevue Asset Management AG2,041,9002016-06-304.041.2633,771

Add Notes, Comments

If you want to ask a question or report a bug, please create a support ticket.

Get WordPress Plugins for easy affiliate links on Stock Tickers and Guru Names | Earn affiliate commissions by embedding GuruFocus Charts
GuruFocus Affiliate Program: Earn up to $400 per referral. ( Learn More)
FEEDBACK