Who owns DATA I/O CORP?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of DAIO from SEC Form 13F filings across 35 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 35 institutions disclosed 3.1M shares of DATA I/O CORP worth $11.7M — about 32.5% of shares outstanding; the largest disclosed holder is Kanen Wealth Management LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
35
13F holders
$11.7M
value, 2026 filers
32.5%
of shares outstanding (3.1M sh)
9
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of DAIO's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Kanen Wealth Management LLC | 839,421 | $3.3M | 0.8% | 8.8% | 0.0% |
| 2 | RENAISSANCE TECHNOLOGIES LLC | 392,443 | $1.5M | 0.0% | 4.1% | -3.7% |
| 3 | Penbrook Management LLC | 355,850 | $1.4M | 0.9% | 3.7% | -0.3% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 323,672 | $1.3M | 0.0% | 3.4% | +8.1% |
| 5 | Kovack Advisors, Inc. | 285,481 | $1.1M | 0.1% | 3% | +6.5% |
| 6 | DIMENSIONAL FUND ADVISORS LP | 140,679 | $554,276 | 0.0% | 1.5% | 0.0% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 115,057 | $453,420 | 0.0% | 1.2% | +32.5% |
| 8 | ACADIAN ASSET MANAGEMENT LLC | 108,582 | $427 | 0.0% | 1.1% | -12.5% |
| 9 | CITADEL ADVISORS LLCNEW | 86,869 | $342,264 | 0.0% | 0.9% | new |
| 10 | ESSEX INVESTMENT MANAGEMENT CO LLC | 74,558 | $293,759 | 0.0% | 0.8% | -0.1% |
| 11 | VANGUARD FIDUCIARY TRUST CO | 58,643 | $231,053 | 0.0% | 0.6% | +27.9% |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 48,548 | $191,279 | 0.0% | 0.5% | +80.9% |
| 13 | Steward Partners Investment Advisory, LLC | 43,472 | $171,280 | 0.0% | 0.5% | 0.0% |
| 14 | THOMPSON DAVIS & CO., INC.NEW | 23,533 | $92,720 | 0.1% | 0.2% | new |
| 15 | JAMES INVESTMENT RESEARCH, INC. | 22,402 | $88,264 | 0.0% | 0.2% | 0.0% |
| 16 | NewEdge Advisors, LLC | 22,402 | $88,264 | 0.0% | 0.2% | 0.0% |
| 17 | NORTHERN TRUST CORP | 21,827 | $85,998 | 0.0% | 0.2% | +62.0% |
| 18 | LPL Financial LLC | 21,000 | $82,740 | 0.0% | 0.2% | -6.9% |
| 19 | JANE STREET GROUP, LLCNEW | 17,727 | $69,844 | 0.0% | 0.2% | new |
| 20 | Legato Capital Management LLC | 17,550 | $69,147 | 0.0% | 0.2% | 0.0% |
| 21 | BlackRock, Inc. | 17,015 | $67,039 | 0.0% | 0.2% | 0.0% |
| 22 | STATE STREET CORP | 16,170 | $63,710 | 0.0% | 0.2% | 0.0% |
| 23 | XTX Topco LtdNEW | 15,284 | $60,219 | 0.0% | 0.2% | new |
| 24 | HRT FINANCIAL LPNEW | 11,288 | $44 | 0.0% | 0.1% | new |
| 25 | CITIGROUP INCNEW | 7,176 | $28,273 | 0.0% | 0.1% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.