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, Q3 2025
Institutional positions in Data I/O Corp as of Sep 30, 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
- 26
- 0 vs. Q2 2025
- Shares held
- 3.19M
- −23.4K (−0.7%) vs. Q2 2025
- Total value
- $10.7M
- +$745.5K (+7.5%) vs. Q2 2025
- New holders
- 2
- 6 more added
- Sold out
- 2
- 6 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Data I/O Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kanen Wealth Management LLC | 839,421 | $2.82M | 0.94% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 476,834 | $1.59M | 0.00% | +491+0.1% | Added |
| Vanguard Group Inc | 358,458 | $1.20M | 0.00% | 00.0% | Unchanged |
| Penbrook Management LLC | 352,750 | $1.18M | 0.82% | +3,000+0.9% | Added |
| Kovack Advisors, Inc. | 263,231 | $879.2K | 0.08% | −6,200−2.3% | Reduced |
| Dimensional Fund Advisors LP | 261,125 | $872.2K | 0.00% | −8,985−3.3% | Reduced |
| Acadian Asset Management LLC | 133,221 | $444.0K | 0.00% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 116,751 | $389.9K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 101,615 | $339.5K | 0.00% | +4,016+4.1% | Added |
| Essex Investment Management Co LLC | 74,641 | $249.3K | 0.04% | 00.0% | Unchanged |
| Citadel Advisors LLC | 41,572 | $138.8K | 0.00% | −797−1.9% | Reduced |
| Steward Partners Investment Advisory, LLC | 34,917 | $116.6K | 0.00% | +14,000+66.9% | Added |
| James Investment Research Inc | 22,402 | $74.8K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 22,402 | $74.8K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 19,106 | $63.8K | 0.00% | +829+4.5% | Added |
| Legato Capital Management LLC | 17,550 | $58.6K | 0.01% | 00.0% | Unchanged |
| BlackRock, Inc. | 17,015 | $56.8K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 16,170 | $54.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 15,428 | $51.5K | 0.00% | −7,280−32.1% | Reduced |
| UBS Group AG | 2,716 | $9.07K | 0.00% | +2,716 | New |
| Simplex Trading, LLC | 2,812 | $9.00K | 0.00% | −2,369−45.7% | Reduced |
| Tower Research Capital LLC (TRC) | 1,031 | $3.44K | 0.00% | −113−9.9% | Reduced |
| Bank of America Corp | 85 | $284 | 0.00% | +2+2.4% | Added |
| Huntington National Bank | 1 | $3 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $3 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 14 | $0 | 0.00% | +14 | New |
| Bard Associates Inc | 0 | $0 | 0.00% | −21,738−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |