ZGNX

Institutional Ownership

Top 30 Institutional Holders
HolderSharesDateChange% Held
PARAMETRIC PORTFOLIO ASSOCIATES LLC--Mar 31, 22-23.32K--
NEXT Financial Group, Inc226Dec 31, 21----
KNOTT DAVID M124.69KSep 30, 21----
Berman Capital Advisors, LLC175Sep 30, 21+175--
Aperio Group, LLC16.04KDec 31, 20-665--
PA Capital LLC12.39KSep 30, 20+2.83K--
NumerixS Investment Technologies Inc4.97KJun 30, 20+4.97K--
Xact Kapitalforvaltning AB--Mar 31, 20-7.30K--
Broadfin Capital, LLC134.94KDec 31, 19-3.10K--
Advisor Group, Inc.192Dec 31, 19----
LADENBURG THALMANN FINANCIAL SERVICES INC.119Dec 31, 19+59--
TIVERTON ASSET MANAGEMENT LLC21.89KSep 30, 19+8.33K--
Flinton Capital Management LLC11.32KSep 30, 19+4.28K--
Opus Point Partners Management, LLC9.72KSep 30, 19----
Tyers Asset Management LLC9.32KSep 30, 19+3.53K--
Neuburgh Advisers LLC7.33KSep 30, 19+2.77K--
Meadow Creek Investment Management LLC5.33KSep 30, 19+2.02K--
RIVERHEAD CAPITAL MANAGEMENT LLC343Sep 30, 19+136--
OppenheimerFunds, Inc.142.39KMar 31, 19+1.22K--
TEACHERS ADVISORS, LLC98.29KMar 31, 19+13.05K--
TIAA CREF INVESTMENT MANAGEMENT LLC69.33KMar 31, 19-23.75K--
ASCEND CAPITAL, LLC--Sep 30, 18-199.78K--
PEAK6 Group LLC--Jun 30, 18-3.20K--
FT Options LLC26.78KSep 30, 17+26.78K--
Commonwealth Equity Services, Inc32.00KJun 30, 17----
BlackRock Fund Advisors1.16MDec 31, 16+138.05K--
BlackRock Institutional Trust Company, N.A.563.60KDec 31, 16+21.32K--
BlackRock Investment Management, LLC105.53KDec 31, 16-887--
BLACKROCK ADVISORS LLC13.39KDec 31, 16+545--
PYRRHO CAPITAL MANAGEMENT, LP--Dec 31, 16-26.65K--
Data is provided for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results.