| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Philotimo Fund, LP | 9.1% | $1,939,063 | 839,421 | Kanen David | 22 May 2025 | |||
| RENAISSANCE TECHNOLOGIES LLC | 4.7% | $1,321,664 | 437,637 | Renaissance Technologies LLC | 31 Dec 2025 |
As of 31 Dec 2025, 25 institutional investors reported holding 2,954,928 shares of DATA I/O CORP - Common Stock (DAIO). This represents 31% of the company’s total 9,391,352 outstanding shares.
The largest institutional shareholders of DATA I/O CORP - Common Stock (DAIO) together control 31% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Kanen Wealth Management LLC | 8.9% | 839,421 | 0% | 0.54% | $1,732,000 |
| RENAISSANCE TECHNOLOGIES LLC | 4.7% | 437,637 | -8.2% | 0% | $1,387,309 |
| Penbrook Management LLC | 3.8% | 356,850 | +1.2% | 0.78% | $1,131,215 |
| VANGUARD GROUP INC | 3.7% | 350,374 | -2.3% | 0% | $1,110,685 |
| Kovack Advisors, Inc. | 2.9% | 268,906 | +2.2% | 0.04% | $852,432 |
| DIMENSIONAL FUND ADVISORS LP | 1.9% | 180,249 | -31% | 0% | $571,389 |
| ACADIAN ASSET MANAGEMENT LLC | 1.3% | 125,219 | -6% | 0% | $396,000 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1% | 104,582 | +2.9% | 0% | $331,593 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 0.79% | 74,641 | 0% | 0.04% | $236,612 |
| Steward Partners Investment Advisory, LLC | 0.46% | 43,472 | +25% | 0% | $137,806 |
| CITADEL ADVISORS LLC | 0.35% | 32,882 | -21% | 0% | $104,236 |
| NewEdge Advisors, LLC | 0.24% | 22,402 | 0% | 0% | $71,014 |
| JAMES INVESTMENT RESEARCH, INC. | 0.24% | 22,402 | 0% | 0.01% | $71,014 |
| Legato Capital Management LLC | 0.19% | 17,550 | 0% | 0% | $55,633 |
| BlackRock, Inc. | 0.18% | 17,015 | 0% | 0% | $53,938 |
| STATE STREET CORP | 0.17% | 16,170 | 0% | 0% | $51,259 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.17% | 15,697 | +1.7% | 0% | $49,759 |
| NORTHERN TRUST CORP | 0.14% | 13,476 | -29% | 0% | $42,719 |
| DRW Securities, LLC | 0.12% | 11,731 | 0% | $37,187 | |
| Tower Research Capital LLC (TRC) | 0.02% | 2,131 | +107% | 0% | $6,755 |
| SIMPLEX TRADING, LLC | 0.02% | 1,932 | -31% | 0% | $6,124 |
| BARD ASSOCIATES INC | 0% | 100 | 0% | $317 | |
| BANK OF AMERICA CORP /DE/ | 0% | 87 | +2.4% | 0% | $275 |
| HUNTINGTON NATIONAL BANK | 0% | 1 | 0% | 0% | $3 |
| SBI Securities Co., Ltd. | 0% | 1 | 0% | 0% | $3 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 2,954,928 | $8,437,277 | -$769,403 | $3.17 | 25 |
| 2025 Q3 | 3,191,255 | $10,670,616 | -$71,807 | $3.34 | 25 |
| 2025 Q2 | 3,214,683 | $9,925,095 | +$472,848 | $3.10 | 26 |
| 2025 Q1 | 3,065,390 | $7,508,872 | -$197,843 | $2.45 | 26 |
| 2024 Q4 | 3,137,498 | $8,689,633 | -$61,863 | $2.77 | 29 |
| 2024 Q3 | 3,165,684 | $8,135,386 | -$293,772 | $2.57 | 28 |
| 2024 Q2 | 3,283,498 | $9,061,247 | -$195,452 | $2.76 | 30 |
| 2024 Q1 | 3,353,666 | $11,803,495 | +$1,760,101 | $3.52 | 31 |
| 2023 Q4 | 2,853,608 | $8,386,497 | -$1,522,372 | $2.94 | 29 |
| 2023 Q3 | 3,366,189 | $12,823,685 | -$26,972 | $3.81 | 29 |
| 2023 Q2 | 3,354,304 | $14,389,215 | +$368,710 | $4.29 | 28 |
| 2023 Q1 | 3,287,639 | $16,343,591 | +$2,507,149 | $4.97 | 30 |
| 2022 Q4 | 2,762,237 | $10,962,571 | -$1,359,122 | $3.97 | 29 |
| 2022 Q3 | 3,204,718 | $8,940,502 | -$425,465 | $2.79 | 24 |
| 2022 Q2 | 3,357,503 | $10,305,366 | +$154,333 | $3.07 | 24 |
| 2022 Q1 | 3,306,975 | $14,049,845 | +$380,201 | $4.25 | 25 |
| 2021 Q4 | 3,216,116 | $14,823,855 | -$2,918,941 | $4.61 | 27 |
| 2021 Q3 | 3,582,648 | $23,382,000 | -$276,203 | $6.53 | 30 |
| 2021 Q2 | 3,605,835 | $24,555,000 | +$1,393,223 | $6.81 | 26 |
| 2021 Q1 | 3,423,528 | $18,553,000 | +$762,966 | $5.42 | 27 |
| 2020 Q4 | 3,328,064 | $13,712,260 | -$1,140,252 | $4.12 | 26 |
| 2020 Q3 | 3,418,500 | $10,871,561 | +$18,088 | $3.18 | 22 |
| 2020 Q2 | 3,409,662 | $11,517,112 | +$2,225,160 | $3.38 | 26 |
| 2020 Q1 | 2,502,327 | $7,030,567 | -$206,788 | $2.81 | 24 |
| 2019 Q4 | 2,761,729 | $11,667,208 | +$801,679 | $4.21 | 28 |
| 2019 Q3 | 2,562,572 | $9,973,723 | -$229,396 | $3.89 | 29 |
| 2019 Q2 | 2,616,100 | $11,771,731 | -$1,679,524 | $4.50 | 29 |
| 2019 Q1 | 2,930,745 | $16,267,507 | +$145,805 | $5.55 | 40 |
| 2018 Q4 | 2,890,867 | $14,456,000 | -$3,194,603 | $5.00 | 33 |
| 2018 Q3 | 3,498,358 | $18,280,000 | -$293,422 | $5.23 | 39 |
| 2018 Q2 | 3,537,543 | $22,454,000 | -$761,974 | $6.35 | 41 |
| 2018 Q1 | 3,617,725 | $26,911,000 | -$3,044,092 | $7.44 | 42 |
| 2017 Q4 | 3,638,949 | $43,822,000 | +$12,465,436 | $12.04 | 40 |
| 2017 Q3 | 2,080,092 | $20,718,000 | +$1,485,018 | $9.96 | 28 |
| 2017 Q2 | 2,018,257 | $16,035,000 | +$4,363,788 | $7.94 | 32 |
| 2017 Q1 | 1,484,192 | $7,403,000 | +$872,050 | $4.99 | 21 |
| 2016 Q4 | 1,322,458 | $5,526,000 | +$164,452 | $4.18 | 20 |
| 2016 Q3 | 1,747,122 | $6,132,000 | +$203,903 | $3.52 | 19 |
| 2016 Q2 | 1,690,104 | $3,971,000 | +$121,788 | $2.35 | 17 |
| 2016 Q1 | 1,637,302 | $4,265,000 | -$421,404 | $2.62 | 14 |
| 2015 Q4 | 1,804,782 | $4,547,000 | -$324,086 | $2.52 | 15 |
| 2015 Q3 | 1,933,283 | $4,504,000 | +$67,674 | $2.33 | 14 |
| 2015 Q2 | 1,904,061 | $6,511,000 | +$944,095 | $3.42 | 14 |
| 2015 Q1 | 1,628,126 | $6,008,000 | +$523,258 | $3.70 | 16 |
| 2014 Q4 | 1,486,766 | $5,035,000 | -$5,086 | $3.38 | 12 |
| 2014 Q3 | 1,488,771 | $4,898,000 | +$138,419 | $3.29 | 14 |
| 2014 Q2 | 1,446,481 | $4,354,000 | +$28,042 | $3.01 | 13 |
| 2014 Q1 | 1,441,574 | $4,253,000 | +$96,956 | $2.40 | 13 |