Data I/O Ownership | Who Owns Data I/O?
Data I/O Ownership Summary
Data I/O is owned by 32.47% institutional investors, 13.63% insiders, and 53.91% retail investors. Kanen wealth management is the largest institutional shareholder, holding 9.03% of DAIO shares. Philotimo Focused Growth and Income is the top mutual fund, with 3.15% of its assets in Data I/O shares.
DAIO Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Data I/O | 32.47% | 13.63% | 53.91% |
| Sector | Technology Stocks | 78.14% | 14.97% | 6.89% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Kanen wealth management | 839.42K | 9.03% | $2.82M |
| Renaissance | 407.64K | 4.37% | $1.03M |
| Penbrook management | 356.85K | 3.83% | $902.83K |
| Vanguard group | 350.37K | 3.77% | $1.11M |
| Kovack advisors | 267.98K | 2.87% | $635.12K |
| Dimensional fund advisors lp | 140.68K | 1.47% | $412.19K |
| Geode capital management | 115.31K | 1.20% | $337.92K |
| Essex investment management | 74.64K | 0.80% | $188.84K |
| Vanguard fiduciary trust | 45.85K | 0.49% | $116.01K |
| Steward partners investment advisory | 43.47K | 0.47% | $109.98K |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Kanen wealth management | 839.42K | 0.94% | $2.82M |
| Penbrook management | 356.85K | 0.68% | $902.83K |
| Kovack advisors | 267.98K | 0.03% | $635.12K |
| Essex investment management | 74.64K | 0.03% | $188.84K |
| James investment research | 22.40K | 0.01% | $56.68K |
| Legato capital management | 17.55K | 0.00% | $51.42K |
| Renaissance | 407.64K | 0.00% | $1.03M |
| Steward partners investment advisory | 43.47K | 0.00% | $109.98K |
| Newedge advisors | 22.40K | 0.00% | $74.82K |
| Tower research capital llc (trc) | 1.68K | 0.00% | $4.25K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Vanguard fiduciary trust | 45.85K | - | 45.85K |
| Susquehanna group, llp | 26.84K | - | 11.14K |
| Ubs group | 11.54K | - | 7.32K |
| Vanguard global advisers | 5.12K | - | 5.12K |
| Group one trading | 10.04K | - | 3.59K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Bank of new york mellon | - | - | -116.75K |
| Acadian asset management | 3.70K | - | -104.88K |
| Zacks investment management | - | - | -49.90K |
| Perritt capital management | - | - | -49.37K |
| Citadel advisors | - | - | -32.88K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 45.85K | - | 45.85K | $116.01K |
| Vanguard global advisers | 5.12K | - | 5.12K | $12.96K |
Sold Out
| Holder | Change |
|---|---|
| Huntington national bank | -1.00 |
| Wells fargo & company/mn | -1.00 |
| Jpmorgan chase | -17.00 |
| Bard associates | -100.00 |
| Planned solutions | -100.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 35 | 16.67% | 3,107,594 | 8.29% | 32 | 3.48% | 18 | 100.00% | 6 | -14.29% |
| Mar 31, 2026 | 12 | -55.56% | 1,012,005 | -65.75% | 10 | 1.07% | 5 | -54.55% | 1 | -83.33% |
| Dec 31, 2025 | 17 | -34.62% | 1,954,250 | -38.76% | 21 | 1.78% | 6 | -25.00% | 5 | - |
| Sep 30, 2025 | 20 | -20.00% | 2,268,669 | -28.49% | 24 | 2.10% | 5 | -58.33% | 5 | -16.67% |
| Jun 30, 2025 | 26 | -7.14% | 3,214,683 | 4.87% | 34 | 3.14% | 13 | 85.71% | 6 | 20.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Philotimo Focused Growth and Income | 327.40K | 3.15% | - |
| Vanguard US Total Market Shares ETF | 213.34K | 2.31% | - |
| Vanguard Morn Total Stk Mkt Idx Investor | 214.24K | 2.28% | 5.46K |
| Vanguard Total Stock Mkt Idx Inv | 214.24K | 2.28% | 5.46K |
| Vanguard MStar Total Stk Mkt Idx Invest | 214.24K | 2.06% | - |
| Vanguard Institutional Extnd Mkt Idx Tr | 109.13K | 1.05% | - |
| Perritt Ultra MicroCap | 49.37K | 0.53% | - |
| Dimensional US Targeted Value ETF | 45.35K | 0.48% | - |
| Fidelity Extended Market Index | 47.12K | 0.45% | -178.00 |
| DFA US Micro Cap I | 46.14K | 0.44% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Oct 20, 2026 | Red Oak Partners, LLC | - | Buy | $651.06K |
| Oct 20, 2026 | Red Oak Partners, LLC | - | Buy | - |
| Oct 20, 2026 | Red Oak Partners, LLC | - | Buy | $348.93K |
| May 07, 2025 | SMITH EDWARD J | - | Buy | $12.30K |
| May 01, 2025 | Wentworth William O. | President | Buy | $24.98K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | - |
| 2025 Q4 | - | - |
| 2025 Q3 | - | - |
| 2025 Q2 | 3 | - |
| 2025 Q1 | - | - |
DAIO Ownership FAQ
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