| 2.06 Data as of May 24 |  +0.01 / +0.49%Today’s Change | 1.39 Today|||52-Week Range 3.02 | +24.85% Year-to-Date |
| Mutual fund holders | 4.41% |
| Individual stakeholders | 31.80% |
| Other institutional | 31.76% |
| 3/31/2013 | RENAISSANCE TECHNOLOGIES LLC Bought 4.5 Thousand shares of Data I/O Corp |
| 3/31/2013 | UBS SECURITIES LLC Bought 1.1 Thousand shares of Data I/O Corp |
| 3/31/2013 | TOWER RESEARCH CAPITAL LLC Sold 139.00 shares of Data I/O Corp |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| Nicusa Capital Partners LP | 11.48% | 889,817 | 1,485,994 | +9,667 | +1.10% |
| Penbrook Management LLC | 8.56% | 663,250 | 1,107,628 | +57,300 | +9.46% |
| AMH Equity Ltd. | 4.98% | 386,126 | 644,830 | -288,856 | -42.79% |
| Dimensional Fund Advisors, Inc. | 4.07% | 315,429 | 526,766 | 0 | 0.00% |
| Renaissance Technologies LLC | 2.90% | 225,100 | 375,917 | +4,500 | +2.04% |
| The Vanguard Group, Inc. | 2.32% | 180,066 | 300,710 | 0 | 0.00% |
| Northern Trust Investments, Inc. | 0.36% | 28,235 | 47,152 | 0 | 0.00% |
| The California Public Employees R... | 0.36% | 27,600 | 46,092 | 0 | 0.00% |
| The Bank of New York Mellon Corp.... | 0.26% | 20,366 | 34,011 | 0 | 0.00% |
| Corsair Capital Management LLC | 0.25% | 19,553 | 32,654 | -5,200 | -21.01% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| Vanguard Extended Market Index Fu... | 2.32% | 180,066 | 300,710 | 0 | 0.00% |
| DFA US Micro Cap Portfolio | 0.99% | 77,000 | 128,590 | 0 | 0.00% |
| DFA US Small Cap Value Portfolio | 0.96% | 74,290 | 124,064 | 0 | 0.00% |
| DFA US Small Cap Portfolio | 0.09% | 7,300 | 12,191 | 0 | 0.00% |
| Wilshire Micro Cap ETF | 0.03% | 2,014 | 3,363 | 0 | 0.00% |
| DFA Variable - US Targeted Value ... | 0.02% | 1,500 | 2,505 | 0 | 0.00% |
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