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AEterna Zentaris Inc (AEZS)Ownership Data

Short Interest History (%)

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

Date Short Interest
April 15, 20151.83
March 31, 20152.31
March 13, 20151.25
February 27, 20150.79
February 13, 20150.65
January 30, 20150.63
January 15, 20150.65
December 31, 20140.74
December 15, 20141.97
November 28, 20142.61
November 14, 20142.36
October 31, 20146.65
October 15, 20147.22
September 30, 20148.35
September 15, 20148.27
August 29, 20148.27
August 15, 20149.18
July 31, 20149.62
July 15, 20149.36
June 30, 20148.81
June 13, 20148.77
May 30, 20148.31
May 15, 20147.4
April 30, 20146.9
April 15, 20147.29
March 31, 20148.01
March 14, 20146.14
February 28, 20146.69
February 14, 20146.62
January 31, 20146.96
January 15, 20144.81
December 31, 20134.65
December 13, 20138.52
November 29, 20134.73
November 15, 20134.44
October 31, 20134.45
October 15, 20135.06
September 30, 20135.16
September 13, 20135.01
August 30, 20135.04
August 15, 20134.59
July 31, 20134.75
July 15, 20134.79
June 28, 20134.78
June 14, 20134.85
May 31, 20134.91
May 15, 20134.65
April 30, 20134.74
April 15, 20134.04
March 28, 20134.32
March 15, 20135.56
February 28, 20135.43
February 15, 20135.4
January 31, 20133.79
January 15, 20133.17
December 31, 20122.17
December 14, 20122.3
November 30, 20121.97
November 15, 20122.05
October 31, 20122.03
October 15, 20124.13
September 28, 20121.98
September 14, 20121.91
August 31, 20121.93
August 15, 20121.83
July 31, 20121.9
July 13, 20121.86
June 29, 20122.07
June 15, 20122.1
May 31, 20122.11
May 15, 20122.28
April 30, 20122.65
April 13, 20123.38
March 30, 20125.29
March 15, 20126.02
February 29, 20125.32
February 15, 20125.27
January 31, 20125.29
January 13, 20125.43
December 30, 20115.42
December 15, 20115.49
November 30, 20115.56
November 15, 20115.44
October 31, 20115.19
October 14, 20115.32
September 30, 20115.84
September 15, 20116.14
August 31, 20116.09
August 15, 20116.12
July 29, 20116.48
July 15, 20116.51
June 30, 20117.2
June 15, 20117.07
May 31, 20116.63
May 13, 20116.31
April 29, 20116.26
April 15, 20117.02
March 31, 20117.24
March 15, 201113.11
February 28, 201112.75
February 15, 201112.63
January 31, 201111.62
January 14, 201110.63
December 31, 201010.68
December 15, 20109.77
November 30, 20108.08
November 15, 20108.03
October 29, 20108.09
October 15, 20107.92
September 30, 20107.7
September 15, 20107.22
August 31, 20107.54
August 13, 20108.29
July 30, 20108.57
July 15, 20109.1
June 30, 20109.41
June 15, 201010.1
May 28, 201010.11
May 14, 20108.15
April 30, 20103.41
April 15, 20100.63
March 31, 20100.34
March 15, 20100.21
February 26, 20100.21
February 12, 20100.24
January 29, 20100.26
January 15, 20100.2
December 31, 20090.21
December 15, 20090.37
November 30, 20090.38
November 13, 20090.23
October 30, 20090.28
October 15, 20090.1
September 30, 20090.21
September 15, 20090.2
August 31, 20090.39
August 14, 20090.62
July 31, 20090.2
July 15, 20090.18
May 29, 20090.01
May 15, 20090.01
April 30, 20090.02
April 15, 20090.04
March 31, 20090.03
March 13, 20090.02
February 27, 20090.03
February 13, 20090.02
January 30, 20090.03
January 15, 20090.03
December 31, 20080.03
December 15, 20080.03
November 28, 20080.03
November 14, 20080.04
October 31, 20080.04
October 15, 20080.05
September 30, 20080.06
September 15, 20080.07
August 29, 20080.07
August 15, 20080.07
July 31, 20080.08
July 15, 20080.07
June 30, 20080.07
June 13, 20080.08
May 30, 20080.08
May 15, 20080.07
April 30, 20080.07
April 15, 20080.05
March 31, 20080.08
March 14, 20080.08
February 29, 20080.07
February 15, 20080.08
January 31, 20080.08
January 15, 20080.07
December 31, 20070.12
December 11, 20070.11
November 27, 20070.1
November 9, 20070.12
October 26, 20070.17
October 10, 20070.15
September 25, 20070.15
September 11, 20070.11
August 10, 20070.17
July 10, 20070.18
June 12, 20070.31
May 10, 20070.27
April 10, 20070.35
March 12, 20070.37
February 12, 20070.3
January 9, 20070.27
December 12, 20060.4
November 10, 20060.43
October 10, 20060.54
September 12, 20060.51
August 10, 20060.46
July 11, 20060.32
June 12, 20060.24
May 10, 20060.03
April 10, 20060.06
March 10, 20060.03
February 10, 20060.08
January 10, 20060.1
December 12, 20050.1
November 10, 20050.69
October 11, 20050.75
September 12, 20050.6
August 10, 20050.68
July 12, 20050.79
June 10, 20050.78
May 10, 20050.74
April 12, 20050.78
March 10, 20050.61
February 10, 20050.69
January 11, 20050.58
December 10, 20040.64
November 10, 20040.47
October 12, 20040.33
September 10, 20040.39
August 10, 20040.32
July 12, 20040.53
June 9, 20040.73
May 11, 20040.17
April 12, 20040.09
March 10, 20040.54
February 10, 20040.53
January 12, 20040.02
December 10, 20030.01
November 11, 20030.03
October 10, 20030.05
September 10, 20037.41
August 12, 20035.98
July 10, 20034.63
June 10, 20034.27
May 12, 20033.51
April 10, 20032.15
March 11, 20032.17
February 11, 20031.88
January 10, 20031.7
December 10, 20021.4
November 12, 20020.66
October 10, 20020.61
September 10, 20020.75
August 12, 20020.33
November 12, 20010.02
August 10, 20010.04
July 10, 20010.01
November 10, 20000.01
September 12, 20000.01

Institutional Ownership History (%)

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

Date Institutional Ownership
March 31, 201510
February 28, 201510
December 31, 20142
November 30, 20141
October 31, 20141
September 30, 20141
August 31, 20142
July 31, 20142
June 30, 20142
May 31, 20141
April 30, 20141
March 31, 20141
February 28, 20143
January 31, 20143
December 31, 20133
November 30, 201313
October 31, 201318
September 30, 20138
August 31, 20138
July 31, 20139
June 30, 20139
May 31, 201311
April 30, 201311
March 31, 20138
January 31, 201311
December 31, 201211
November 30, 201210
October 31, 201210
September 30, 20121
August 31, 20123
July 31, 20123
June 30, 20125
May 31, 20125
April 30, 20125
March 31, 20125
February 29, 20125
January 31, 20125
December 31, 20115
November 30, 20115
October 31, 20115
September 30, 20115
August 31, 201120
July 31, 201115
June 30, 201115
May 31, 201116
April 30, 201116
March 31, 201117
February 28, 201121
January 31, 201122
December 31, 201021
November 30, 201021
October 31, 201021
September 30, 201028
August 31, 201027
July 31, 201027
June 30, 201027
May 31, 201024
April 30, 201017
March 31, 201012
February 28, 201012
January 31, 20109
December 31, 20099
November 30, 20099
October 31, 20099
September 30, 20099
August 31, 20099
July 31, 20094
June 30, 20095
May 31, 20095
April 30, 20095
March 31, 20096
February 28, 20096
January 31, 20098
December 31, 20089
November 30, 20089
October 31, 20089

Insider ownership (%)

This is the historical insider ownership of AEterna Zentaris 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.

No ownership data available.

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Heights Capital Management Inc5,112,9032015-03-067.800.003,313,161
Hudson Bay Capital Management LP792,9322014-12-311.210.01476,000
Nine Chapters Capital Management LLC274,5002014-12-310.420.01165,000
Two Sigma Investments LLC101,8942014-12-310.160.0061,000
Citadel Advisors Llc89,8092014-12-310.140.0054,000
Morgan Stanley & Co Inc76,4552014-12-310.120.0046,000
Columbia Mangmt Investment Advisers, LLC42,8332014-12-310.070.0026,000
UBS Securities LLC41,5142014-12-310.060.0025,000
Susquehanna Financial Group, LLLP32,2792014-12-310.050.0019,000
TWO SIGMA SECURITIES, LLC27,1352014-12-310.040.0116,000

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