Data I/O Corp: Ownership

Ownership Information
Shares Outstanding 9.00 Mil
Institutional Ownership (%)31.85
Top 10 Institutions (%)33.20
Mutual Fund Ownership (%).00
5%/Insider Ownership (%)4.65
Float (%)95.35
Ownership Activity
Description# of HoldersShares
Total Positions 172,866,281
New Positions10
Soldout Positions60
Net Position Change-534,961
Buyers6295,653
Sellers11-260,692
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Wellington Management Company, LLP 908,861 126,400 16.2 1,250,924 10.2 0.0 09-30-09
Nicusa Investment Advisors 423,150 124,365 41.6 -275,191 4.7 5.6 12-31-08
Royce & Associates, LLC 346,200 -25,400 -6.8 266,886 3.9 0.0 09-30-09
Dimensional Fund Advisors, LP 338,981 -400 -0.1 331,061 3.8 0.0 09-30-09
Benchmark Plus Management, LLC 253,823 11,761 4.9 282,265 2.8 3.8 09-30-09
Renaissance Technologies Corp. 179,200 0 0.0 175,616 2.0 0.0 09-30-09
Vanguard Group, Inc. 166,176 3,651 2.2 173,258 1.9 0.0 09-30-09
Corsair Capital Management, Inc. 69,562 -5,000 -6.7 53,920 0.8 0.1 09-30-09
BlackRock Institutional Trust Company, N.A. 34,988 0 0.0 34,288 0.4 0.0 09-30-09
Northern Trust Investments, N.A. 34,784 19,476 127.2 89,595 0.4 0.0 09-30-09
California Public Employees' Retirement System 27,600 0 0.0 27,048 0.3 0.0 09-30-09
BNY Mellon Asset Management 22,491 0 0.0 14,169 0.3 0.0 12-31-09
Algert Coldiron Investors, L.L.C. 21,120 0 0.0 22,388 0.2 0.0 09-30-09
Northern Trust Global Investments 17,016 0 0.0 16,675 0.2 0.0 09-30-09
RBC Capital Markets Wealth Management 11,900 -17,500 -59.5 -38,213 0.1 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 7:16 AM Eastern Time