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, Q4 2025
Institutional positions in Data I/O Corp as of Dec 31, 2025. 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
- 27
- +1 vs. Q3 2025
- Shares held
- 2.96M
- −236.1K (−7.4%) vs. Q3 2025
- Total value
- $8.44M
- −$2.23M (−20.9%) vs. Q3 2025
- New holders
- 3
- 8 more added
- Sold out
- 2
- 7 more reduced
Compare with Q3 2025: 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, Q4 2025
Shares, value and share of portfolio for each institution holding Data I/O Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 110 | $0 | 0.00% | +96+685.7% | Added |
| Huntington National Bank | 1 | $3 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $3 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 87 | $275 | 0.00% | +2+2.4% | Added |
| Bard Associates Inc | 100 | $317 | 0.00% | +100 | New |
| Capital Analysts, LLC | 159 | $1.00K | 0.00% | +159 | New |
| Simplex Trading, LLC | 1,932 | $6.12K | 0.00% | −880−31.3% | Reduced |
| Tower Research Capital LLC (TRC) | 2,131 | $6.75K | 0.00% | +1,100+106.7% | Added |
| DRW Securities, LLC | 11,731 | $37.2K | 0.00% | +11,731 | New |
| Northern Trust Corp | 13,476 | $42.7K | 0.00% | −5,630−29.5% | Reduced |
| Susquehanna International Group, LLP | 15,697 | $49.8K | 0.00% | +269+1.7% | Added |
| State Street Corp | 16,170 | $51.3K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 17,015 | $53.9K | 0.00% | 00.0% | Unchanged |
| Legato Capital Management LLC | 17,550 | $55.6K | 0.00% | 00.0% | Unchanged |
| James Investment Research Inc | 22,402 | $71.0K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 22,402 | $71.0K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 32,882 | $104.2K | 0.00% | −8,690−20.9% | Reduced |
| Steward Partners Investment Advisory, LLC | 43,472 | $137.8K | 0.00% | +8,555+24.5% | Added |
| Essex Investment Management Co LLC | 74,641 | $236.6K | 0.04% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 104,582 | $331.6K | 0.00% | +2,967+2.9% | Added |
| Acadian Asset Management LLC | 125,219 | $396.0K | 0.00% | −8,002−6.0% | Reduced |
| Dimensional Fund Advisors LP | 180,249 | $571.4K | 0.00% | −80,876−31.0% | Reduced |
| Kovack Advisors, Inc. | 268,906 | $852.4K | 0.04% | +5,675+2.2% | Added |
| Vanguard Group Inc | 350,374 | $1.11M | 0.00% | −8,084−2.3% | Reduced |
| Penbrook Management LLC | 356,850 | $1.13M | 0.78% | +4,100+1.2% | Added |
| Renaissance Technologies LLC | 437,637 | $1.39M | 0.00% | −39,197−8.2% | Reduced |
| Kanen Wealth Management LLC | 839,421 | $1.73M | 0.54% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −116,751−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −2,716−100.0% | Sold out |