Data I/O Corp
DAIO- Exchange
- Nasdaq
- Industry
- Instruments For Meas & Testing of Electricity & Elec Signals
- SEC CIK
- 0000351998
No open-market purchases or sales by Data I/O Corp insiders were filed in the last 90 days; 35 institutions reported holding it in 13F filings for Q2 2026, worth $12.2M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Data I/O Corp as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 35
- +6 vs. Q1 2026
- Shares held
- 3.11M
- +237.6K (+8.3%) vs. Q1 2026
- Total value
- $12.2M
- +$4.99M (+69.1%) vs. Q1 2026
- New holders
- 9
- 9 more added
- Sold out
- 3
- 6 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting DAIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 35 | $12.2M |
| Q1 2026 | 29 | $7.22M |
| Q4 2025 | 27 | $8.44M |
| Q3 2025 | 26 | $10.7M |
| Q2 2025 | 26 | $9.93M |
| Q1 2025 | 26 | $7.51M |
| Q4 2024 | 29 | $8.69M |
| Q3 2024 | 29 | $8.14M |
| Q2 2024 | 32 | $9.06M |
| Q1 2024 | 32 | $11.8M |
| Q4 2023 | 30 | $8.39M |
| Q3 2023 | 29 | $12.8M |
| Q2 2023 | 29 | $14.4M |
| Q1 2023 | 30 | $16.2M |
| Q4 2022 | 30 | $11.1M |
| Q3 2022 | 28 | $8.94M |
| Q2 2022 | 28 | $10.3M |
| Q1 2022 | 29 | $14.0M |
| Q4 2021 | 29 | $14.8M |
| Q3 2021 | 32 | $23.4M |
| Q2 2021 | 30 | $24.7M |
| Q1 2021 | 30 | $18.6M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Data I/O Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kanen Wealth Management LLC | 839,421 | $3.29M | 0.80% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 392,443 | $1.55M | 0.00% | −15,200−3.7% | Reduced |
| Penbrook Management LLC | 355,850 | $1.40M | 0.89% | −1,000−0.3% | Reduced |
| Vanguard Capital Management LLC | 323,672 | $1.28M | 0.00% | +24,275+8.1% | Added |
| Kovack Advisors, Inc. | 285,481 | $1.11M | 0.05% | +17,500+6.5% | Added |
| Dimensional Fund Advisors LP | 140,679 | $554.3K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 115,057 | $453.4K | 0.00% | +28,190+32.5% | Added |
| Acadian Asset Management LLC | 108,582 | $427.0K | 0.00% | −15,537−12.5% | Reduced |
| Citadel Advisors LLC | 86,869 | $342.3K | 0.00% | +86,869 | New |
| Essex Investment Management Co LLC | 74,558 | $293.8K | 0.04% | −83−0.1% | Reduced |
| Vanguard Fiduciary Trust Co | 58,643 | $231.1K | 0.00% | +12,790+27.9% | Added |
| Susquehanna International Group, LLP | 48,548 | $191.3K | 0.00% | +21,711+80.9% | Added |
| Steward Partners Investment Advisory, LLC | 43,472 | $171.3K | 0.00% | 00.0% | Unchanged |
| Thompson Davis & Co., Inc. | 23,533 | $92.7K | 0.06% | +23,533 | New |
| James Investment Research Inc | 22,402 | $88.3K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 22,402 | $88.3K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 21,827 | $86.0K | 0.00% | +8,351+62.0% | Added |
| LPL Financial LLC | 21,000 | $82.7K | 0.00% | −1,545−6.9% | Reduced |
| Jane Street Group, LLC | 17,727 | $69.8K | 0.00% | +17,727 | New |
| Legato Capital Management LLC | 17,550 | $69.1K | 0.01% | 00.0% | Unchanged |
| BlackRock, Inc. | 17,015 | $67.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 16,170 | $63.7K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 15,284 | $60.2K | 0.00% | +15,284 | New |
| HRT Financial LP | 11,288 | $44.0K | 0.00% | +11,288 | New |
| Citigroup Inc | 7,176 | $28.3K | 0.00% | +7,176 | New |
| Group One Trading, L.P. | 6,450 | $25.4K | 0.00% | +6,350+6,350.0% | Added |
| Vanguard Global Advisers, LLC | 5,124 | $20.2K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 4,279 | $16.9K | 0.00% | +1,520+55.1% | Added |
| UBS Group AG | 4,222 | $16.6K | 0.00% | +3,281+348.7% | Added |
| Point Nemo Capital, LLC | 500 | $1.97K | 0.00% | +500 | New |
| Tower Research Capital LLC (TRC) | 314 | $1.24K | 0.00% | −1,367−81.3% | Reduced |
| Barclays PLC | 50 | $197 | 0.00% | +50 | New |
| Caitong International Asset Management Co., Ltd | 4 | $16 | 0.00% | +4 | New |
| Huntington National Bank | 1 | $4 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $4 | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −13,788−100.0% | Sold out |
| Bard Associates Inc | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −136−100.0% | Sold out |