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

Institutional Holders (2016Q1)
Portfolio Summary: 16 Institutional holders with a total value of $4,267,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Penbrook Management LLC 477,390 1,251,000 29.32%
2 RENAISSANCE TECHNOLOGIES LLC 301,900 791,000 18.54%
3 DIMENSIONAL FUND ADVISORS LP 300,492 775,000 18.16%
4 VANGUARD GROUP INC 261,353 674,000 15.80%
5 PERRITT CAPITAL MANAGEMENT INC 180,888 474,000 11.11%
6 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 27,600 71,000 1.66%
7 ROYAL BANK OF CANADA 21,050 55,000 1.29%
8 Bank of New York Mellon Corp 20,390 53,000 1.24%
9 NORTHERN TRUST CORP 19,003 50,000 1.17%
10 BlackRock Institutional Trust Company, N.A. 11,833 31,000 0.73%
11 JAMES INVESTMENT RESEARCH, INC. 9,150 24,000 0.56%
12 MORGAN STANLEY 3,815 10,000 0.23%
13 UBS Group AG 1,175 3,000 0.07%
14 BlackRock Fund Advisors 1,277 3,000 0.07%
15 Tower Research Capital LLC (TRC) 558 1,000 0.02%
16 WELLS FARGO & COMPANY/MN 200 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.