Zix Corporation: Ownership

Ownership Information
Shares Outstanding 64.00 Mil
Institutional Ownership (%)30.07
Top 10 Institutions (%)22.80
Mutual Fund Ownership (%).20
5%/Insider Ownership (%)1.48
Float (%)98.52
Ownership Activity
Description# of HoldersShares
Total Positions 6919,246,590
New Positions110
Soldout Positions150
Net Position Change0-582,232
Buyers292,466,849
Sellers29-3,049,081
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
BlackRock Institutional Trust Company, N.A. 2,886,787 325,021 12.7 2,508,282 4.5 0.0 09-30-09
Perkins Capital Management, Inc. 2,418,669 -372,434 -13.3 -2,004,503 3.8 2.9 12-31-09
The Vertical Group 1,410,710 0 0.0 987,497 2.2 6.5 09-30-09
Renaissance Technologies Corp. 1,333,966 -220,600 -14.2 602,876 2.1 0.0 09-30-09
Vanguard Group, Inc. 1,295,598 25,028 2.0 944,461 2.0 0.0 09-30-09
Hambrecht & Quist Capital Management, LLC 1,157,112 -127,888 -10.0 618,146 1.8 0.5 09-30-09
GME Capital, L.L.C. 1,141,197 0 0.0 -559,186 1.8 0.8 12-31-09
Driehaus Capital Management, LLC 1,108,333 407,333 58.1 1,386,833 1.7 0.1 09-30-09
Dimensional Fund Advisors, LP 942,957 77,458 9.0 776,257 1.5 0.0 09-30-09
State Street Global Advisors (US) 924,184 378,645 69.4 1,214,897 1.5 0.0 09-30-09
Northern Trust Investments, N.A. 529,426 365,154 222.3 918,329 0.8 0.0 09-30-09
TIAA-CREF 438,152 0 0.0 306,706 0.7 0.0 09-30-09
Bridgeway Capital Management, Inc. 431,682 0 0.0 302,177 0.7 0.0 09-30-09
Turner Investment Partners, Inc. 230,260 230,260 100.0 506,572 0.4 0.0 09-30-09
Morgan Stanley Smith Barney LLC 222,000 222,000 100.0 488,400 0.3 0.0 09-30-09
*Category Headings:
Shs Held - shares held at report date
Shs Chg - position change within reporting period
%Chg - % change
$Chg - market value of the position change
%Out - % of shares outstanding
%Port - % Portfolio
Rpt Date - report date
Page generated 2/10/2010 8:41 AM Eastern Time