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.
Q1 2026 vs. Q4 2025
How the institutions holding Data I/O Corp changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 27 | 1 | 29 | +3 |
| Shares | 2.96M | 350.4K | 2.87M | +265.1K (+10.2%) |
| Value | $8.44M | $1.11M | $7.22M | −$110.8K (−1.5%) |
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (7)
Institutions that held Data I/O Corp at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Vanguard Capital Management LLC | 299,397 | $757.5K | 0.00% |
| Vanguard Fiduciary Trust Co | 45,853 | $116.0K | 0.00% |
| LPL Financial LLC | 22,545 | $57.0K | 0.00% |
| Goldman Sachs Group Inc | 13,788 | $34.9K | 0.00% |
| Vanguard Global Advisers, LLC | 5,124 | $13.0K | 0.00% |
| UBS Group AG | 941 | $2.38K | 0.00% |
| Group One Trading, L.P. | 100 | $253 | 0.00% |
Sold out (4)
Institutions that held Data I/O Corp at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Citadel Advisors LLC | 32,882 | $104.2K |
| DRW Securities, LLC | 11,731 | $37.2K |
| Capital Analysts, LLC | 159 | $1.00K |
| Bank of America Corp | 87 | $275 |
Not filed for Q1 2026 yet (1)
Institutions that held Data I/O Corp at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 350,374 | $1.11M |