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DATA I O CORP
DATA I O CORP. Institutional holdings reported to the SEC.

Institutional Holders (2014Q3)
Portfolio Summary: 15 Institutional holders with a total value of $4,900,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Penbrook Management LLC 535,050 1,760,000 35.92%
2 DIMENSIONAL FUND ADVISORS LP 305,978 1,007,000 20.55%
3 RENAISSANCE TECHNOLOGIES LLC 262,700 864,000 17.63%
4 VANGUARD GROUP INC 256,409 844,000 17.22%
5 ROYAL BANK OF CANADA 29,751 98,000 2.00%
6 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 27,600 91,000 1.86%
7 NORTHERN TRUST CORP 22,981 76,000 1.55%
8 Bank of New York Mellon Corp 20,366 67,000 1.37%
9 BlackRock Institutional Trust Company, N.A. 12,716 42,000 0.86%
10 GLENMEDE TRUST CO NA 7,000 23,000 0.47%
11 MORGAN STANLEY 5,592 18,000 0.37%
12 Tower Research Capital LLC (TRC) 1,962 6,000 0.12%
13 NEXT Financial Group, Inc 700 2,000 0.04%
14 Ground Swell Capital, LLC 369 1,000 0.02%
15 MANUFACTURERS LIFE INSURANCE COMPANY, THE 399 1,000 0.02%

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.