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ZIX CORP COM
ZIX CORP COM. Institutional holdings reported to the SEC.

Institutional Holders (2016Q1)
Portfolio Summary: 122 Institutional holders with a total value of $143,548,800.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 RENAISSANCE TECHNOLOGIES LLC 2,745,441 10,790,000 7.52%
2 BlackRock Institutional Trust Company, N.A. 2,372,976 9,326,000 6.50%
3 PENSERRA CAPITAL MANAGEMENT LLC 2,196,847 8,633,000 6.01%
4 VANGUARD GROUP INC 1,952,874 7,675,000 5.35%
5 DIMENSIONAL FUND ADVISORS LP 1,782,445 7,005,000 4.88%
6 THB ASSET MANAGEMENT 1,746,744 6,864,000 4.78%
7 BlackRock Fund Advisors 1,491,824 5,863,000 4.08%
8 WADDELL & REED FINANCIAL INC 1,400,500 5,504,000 3.83%
9 Numeric Investors LLC 1,349,610 5,304,000 3.69%
10 STATE STREET CORP 1,121,595 4,407,000 3.07%
11 PERRITT CAPITAL MANAGEMENT INC 1,036,343 4,073,000 2.84%
12 GSA CAPITAL PARTNERS LLP 907,109 3,565,000 2.48%
13 NORTHERN TRUST CORP 901,034 3,540,000 2.47%
14 D. E. Shaw & Co., Inc. 829,849 3,261,000 2.27%
15 RICE HALL JAMES & ASSOCIATES, LLC 823,666 3,237,000 2.25%
16 MILLENNIUM MANAGEMENT LLC 791,729 3,111,000 2.17%
17 Cowen Prime Services LLC 748,100 2,940,000 2.05%
18 DRIEHAUS CAPITAL MANAGEMENT LLC 712,266 2,799,000 1.95%
19 KESTREL INVESTMENT MANAGEMENT CORP 641,550 2,521,000 1.76%
20 ALGERT GLOBAL LLC 608,284 2,391,000 1.67%
21 CONNORS INVESTOR SERVICES INC 499,447 1,963,000 1.37%
22 ROYCE & ASSOCIATES LP 488,500 1,920,000 1.34%
23 GEODE CAPITAL MANAGEMENT, LLC 477,364 1,875,000 1.31%
24 AQR CAPITAL MANAGEMENT LLC 448,093 1,761,000 1.23%
25 MORGAN STANLEY 438,496 1,723,000 1.20%
26 TWO SIGMA ADVISERS, LP 425,700 1,673,000 1.17%
27 Bank of New York Mellon Corp 423,410 1,664,000 1.16%
28 TWO SIGMA INVESTMENTS, LP 355,661 1,398,000 0.97%
29 PERKINS CAPITAL MANAGEMENT INC 309,039 1,215,000 0.85%
30 OXFORD ASSET MANAGEMENT LLP 289,046 1,136,000 0.79%
31 GLOBEFLEX CAPITAL L P 261,500 1,028,000 0.72%
32 AMERICAN CENTURY COMPANIES INC 253,355 996,000 0.69%
33 TIAA CREF INVESTMENT MANAGEMENT LLC 242,400 953,000 0.66%
34 HighTower Advisors, LLC 239,507 941,000 0.66%
35 BLACKROCK ADVISORS LLC 234,421 921,000 0.64%
36 WASHINGTON CAPITAL MANAGEMENT, INC 228,920 900,000 0.63%
37 BlackRock Investment Management, LLC 204,646 804,000 0.56%
38 Spark Investment Management LLC 198,900 781,000 0.54%
39 GOLDMAN SACHS GROUP INC 194,905 766,000 0.53%
40 BRIDGEWAY CAPITAL MANAGEMENT, LLC 193,332 760,000 0.53%
41 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 176,500 694,000 0.48%
42 BANK OF AMERICA CORP /DE/ 173,480 682,000 0.48%
43 GMT CAPITAL CORP 163,860 644,000 0.45%
44 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 162,633 640,000 0.45%
45 MENTA CAPITAL LLC 161,994 637,000 0.44%
46 Coe Capital Management, LLC 160,000 628,800 0.44%
47 MARTIN & CO INC /TN/ 159,360 626,000 0.44%
48 STRS OHIO 157,100 617,000 0.43%
49 WHITE PINE CAPITAL LLC 144,375 567,000 0.39%
50 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 123,197 484,000 0.34%
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From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.