DAIO: DATA I/O CORP insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-10-27 | New 13G stake | Red Oak Partners, LLC | 11.20% | SEC |
Institutional ownership (Q2 2026)
35 institutions reported holding $11.74M of DATA I/O CORP on Form 13F (29 the quarter before). 9 opened a new position and 3 sold out. Shares held by institutions: +9%.
| Largest holders | Shares | Value |
|---|---|---|
| Kanen Wealth Management LLC | 839,421 | $3.29M |
| RENAISSANCE TECHNOLOGIES LLC | 392,443 | $1.55M |
| Penbrook Management LLC | 355,850 | $1.40M |
| VANGUARD CAPITAL MANAGEMENT LLC | 323,672 | $1.28M |
| Kovack Advisors, Inc. | 285,481 | $1.11M |
| DIMENSIONAL FUND ADVISORS LP | 140,679 | $554K |
| GEODE CAPITAL MANAGEMENT, LLC | 115,057 | $453K |
| CITADEL ADVISORS LLC | 86,869 | $342K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 74,558 | $294K |
| VANGUARD FIDUCIARY TRUST CO | 58,643 | $231K |
Get new insider and activist filings the morning after: daily alerts. Not investment advice.