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, Q1 2023
Institutional positions in Data I/O Corp as of Mar 31, 2023. 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
- 30
- 0 vs. Q4 2022
- Shares held
- 3.29M
- +504.5K (+18.1%) vs. Q4 2022
- Total value
- $16.2M
- +$5.16M (+46.6%) vs. Q4 2022
- New holders
- 1
- 6 more added
- Sold out
- 1
- 10 more reduced
Compare with Q4 2022: 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, Q1 2023
Shares, value and share of portfolio for each institution holding Data I/O Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 1 | $5 | 0.00% | 00.0% | Unchanged |
| Greenhaven Road Investment Management, L.P. | 20,908 | $111 | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 50 | $249 | 0.00% | −200−80.0% | Reduced |
| Wells Fargo & Company | 55 | $273 | 0.00% | −1,299−95.9% | Reduced |
| Signaturefd, LLC | 237 | $1.18K | 0.00% | −3,219−93.1% | Reduced |
| US Bancorp | 500 | $2.48K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 1,049 | $5.21K | 0.00% | −1−0.1% | Reduced |
| Tower Research Capital LLC (TRC) | 3,651 | $18.0K | 0.00% | −119−3.2% | Reduced |
| Cannell Peter B & Co Inc | 10,000 | $49.7K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 10,200 | $50.7K | 0.00% | −300−2.9% | Reduced |
| GWM Advisors LLC | 15,402 | $76.5K | 0.00% | 00.0% | Unchanged |
| James Investment Research Inc | 15,402 | $77.0K | 0.01% | 00.0% | Unchanged |
| State Street Corp | 16,170 | $80.4K | 0.00% | 00.0% | Unchanged |
| BlackRock Inc. | 17,713 | $88.0K | 0.00% | −12,166−40.7% | Reduced |
| Citadel Advisors LLC | 18,118 | $90.0K | 0.00% | +10,145+127.2% | Added |
| Bard Associates Inc | 22,425 | $111.5K | 0.05% | 00.0% | Unchanged |
| Northern Trust Corp | 22,798 | $113.3K | 0.00% | +44+0.2% | Added |
| Millennium Management LLC | 23,025 | $114.0K | 0.00% | +12,207+112.8% | Added |
| Susquehanna International Group, LLP | 29,203 | $145.1K | 0.00% | +15,869+119.0% | Added |
| Janney Montgomery Scott LLC | 30,852 | $153.0K | 0.00% | 00.0% | Unchanged |
| Perritt Capital Management Inc | 44,899 | $223.1K | 0.12% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 50,735 | $252.2K | 0.00% | 00.0% | Unchanged |
| Essex Investment Management Co LLC | 90,416 | $449.4K | 0.07% | +90,416 | New |
| Acadian Asset Management LLC | 219,740 | $1.09M | 0.00% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 271,612 | $1.35M | 0.00% | −6,288−2.3% | Reduced |
| Vanguard Group Inc | 328,956 | $1.63M | 0.00% | 00.0% | Unchanged |
| Kovack Advisors, Inc. | 345,701 | $1.72M | 0.23% | +8,200+2.4% | Added |
| Penbrook Management LLC | 347,250 | $1.73M | 1.35% | −2,500−0.7% | Reduced |
| Renaissance Technologies LLC | 524,043 | $2.60M | 0.00% | −20,600−3.8% | Reduced |
| Kanen Wealth Management LLC | 806,528 | $4.01M | 2.73% | +414,321+105.6% | Added |
| Bank of America Corp | 0 | $0 | 0.00% | −16−100.0% | Sold out |