Ownership Summary as reported in the most recent 13F filings
www.nasdaq.com/symbol/aezs/institutional-holdings
28 Institutional Holders
443,779 Total Shares Held
SABBY MANAGEMENT, LLC 06/30/2017 67,283 67,283 New 135
JPMORGAN CHASE & CO 09/30/2017 56,800 46,500 451.46 114
A.R.T. ADVISORS, LLC 06/30/2017 52,194 52,194 New 104
TWO SIGMA SECURITIES, LLC 06/30/2017 48,783 48,783 New 98
DEUTSCHE BANK AG\ 06/30/2017 39,265 (19,146) (32.78) 79
MORGAN STANLEY 06/30/2017 34,525 800 2.37 69
BRANDES INVESTMENT PARTNERS, LP 09/30/2017 34,000 34,000 New 68
RENAISSANCE TECHNOLOGIES LLC 09/30/2017 33,078 (98,355) (74.83) 66
PRIVATE ADVISOR GROUP, LLC 09/30/2017 20,501 20,501 New 41
VIRTU KCG HOLDINGS LLC 06/30/2017 18,577 450 2.48 37
NINE CHAPTERS CAPITAL MANAGEMENT LLC 09/30/2017 18,500 18,500 New 37