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 2025
Institutional positions in Data I/O Corp as of Jun 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. Q1 2025
- Shares held
- 3.21M
- +149.3K (+4.9%) vs. Q1 2025
- Total value
- $9.93M
- +$2.42M (+32.2%) vs. Q1 2025
- New holders
- 3
- 10 more added
- Sold out
- 3
- 6 more reduced
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Data I/O Corp; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Kanen Wealth Management LLC | 839,421 | $2.59M | 0.99% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 476,343 | $1.48M | 0.00% | −3,272−0.7% | Reduced |
| Vanguard Group Inc | 358,458 | $1.10M | 0.00% | 00.0% | Unchanged |
| Penbrook Management LLC | 349,750 | $1.08M | 0.82% | +80,300+29.8% | Added |
| Kovack Advisors, Inc. | 269,431 | $835.2K | 0.08% | −12,575−4.5% | Reduced |
| Dimensional Fund Advisors LP | 270,110 | $829.2K | 0.00% | +12,758+5.0% | Added |
| Acadian Asset Management LLC | 133,221 | $408.0K | 0.00% | −13,319−9.1% | Reduced |
| Bank of New York Mellon Corp | 116,751 | $361.9K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 97,599 | $299.7K | 0.00% | −135−0.1% | Reduced |
| Essex Investment Management Co LLC | 74,641 | $231.4K | 0.04% | +30,950+70.8% | Added |
| Citadel Advisors LLC | 42,369 | $130.1K | 0.00% | +1,148+2.8% | Added |
| Susquehanna International Group, LLP | 22,708 | $69.7K | 0.00% | +22,708 | New |
| James Investment Research Inc | 22,402 | $69.4K | 0.01% | +7,000+45.4% | Added |
| GWM Advisors LLC | 22,402 | $69.4K | 0.00% | +7,000+45.4% | Added |
| Bard Associates Inc | 21,738 | $66.7K | 0.02% | −450−2.0% | Reduced |
| Steward Partners Investment Advisory, LLC | 20,917 | $64.8K | 0.00% | +20,917 | New |
| Northern Trust Corp | 18,277 | $56.7K | 0.00% | +2,253+14.1% | Added |
| Legato Capital Management LLC | 17,550 | $54.4K | 0.01% | +6,874+64.4% | Added |
| BlackRock, Inc. | 17,015 | $52.7K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 16,170 | $49.6K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 5,181 | $16.0K | 0.00% | +2,987+136.1% | Added |
| Tower Research Capital LLC (TRC) | 1,144 | $3.55K | 0.00% | −463−28.8% | Reduced |
| Raymond James Financial Inc | 1,000 | $3.10K | 0.00% | +1,000 | New |
| Bank of America Corp | 83 | $258 | 0.00% | +13+18.6% | Added |
| Huntington National Bank | 1 | $3 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $3 | 0.00% | 00.0% | Unchanged |
| Salem Investment Counselors Inc | 0 | $0 | 0.00% | −15,796−100.0% | Sold out |
| Caldwell Sutter Capital, Inc. | 0 | $0 | 0.00% | −588−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −17−100.0% | Sold out |