Latest Period
Q2 2026
Security Snapshot
DATA I/O CORP - Common Stock (DAIO) Institutional Ownership
CUSIP: 237690102
13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026
Institutions Reporting
35
Shares (Excl. Options)
3,107,594
Price
$3.94
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- Security type / class
- Equity / Common Stock
- Symbol
- DAIO on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 3,107,594
- Total 13F value
- $12,205,956
- Portfolio coverage rank
- 0%
- Share change
- +237,779
- Value change
- +$955,048
- Number of holders
- 35
- Shares outstanding
- 10,367,919
- SEC-reported price per share
- $3.94
- Insider filing price
- $3.94
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- DAIO - DATA I/O CORP - Common Stock is tracked under CUSIP 237690102.
- 35 institutions reported positions in Q2 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 28 to 35 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $7,216,791 to $12,205,956.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 35 institutions filings for Q2 2026.
Security key
237690102
Latest holder period
Q2 2026
13F holders
35
13D/G owners
3
CIK / CUSIP context first
Open Q2 2026 holders
DAIO full holder history
DATA I/O CORP SEC filings
DATA I/O CORP company facts
DATA I/O CORP insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 237690102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
DAIO
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| LYTTON LAURENCE W | 9.9% | $2,832,930 | 1,026,424 | LYTTON LAURENCE W | 17 Jun 2026 | |||
| Philotimo Fund, LP | 9.1% | $1,939,063 | 839,421 | Kanen David | 22 May 2025 | |||
| RENAISSANCE TECHNOLOGIES LLC | 4.7% | $1,321,664 | 437,637 | Renaissance Technologies LLC | 31 Dec 2025 |
As of 30 Jun 2026, 35 institutional investors reported holding 3,107,594 shares of DATA I/O CORP - Common Stock (DAIO). This represents 30% of the company’s total 10,367,919 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
30%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Kanen Wealth Management LLC | 8.1% | 839,421 | 0% | 0.8% | $3,287,675 |
| RENAISSANCE TECHNOLOGIES LLC | 3.8% | 392,443 | -3.7% | 0% | $1,546,225 |
| Penbrook Management LLC | 3.4% | 355,850 | -0.28% | 0.89% | $1,402,049 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.1% | 323,672 | +8.1% | 0% | $1,275,268 |
| Kovack Advisors, Inc. | 2.8% | 285,481 | +6.5% | 0.05% | $1,107,666 |
| DIMENSIONAL FUND ADVISORS LP | 1.4% | 140,679 | 0% | 0% | $554,276 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1% | 115,057 | +32% | 0% | $453,420 |
| ACADIAN ASSET MANAGEMENT LLC | 1% | 108,582 | -13% | 0% | $427,000 |
| CITADEL ADVISORS LLC | 0.84% | 86,869 | 0% | $342,264 | |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 0.72% | 74,558 | -0.11% | 0.04% | $293,759 |
| VANGUARD FIDUCIARY TRUST CO | 0.57% | 58,643 | +28% | 0% | $231,053 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.47% | 48,548 | +81% | 0% | $191,279 |
| Steward Partners Investment Advisory, LLC | 0.42% | 43,472 | 0% | 0% | $171,280 |
| THOMPSON DAVIS & CO., INC. | 0.23% | 23,533 | 0.06% | $92,720 | |
| JAMES INVESTMENT RESEARCH, INC. | 0.22% | 22,402 | 0% | 0.01% | $88,264 |
| NewEdge Advisors, LLC | 0.22% | 22,402 | 0% | 0% | $88,264 |
| NORTHERN TRUST CORP | 0.21% | 21,827 | +62% | 0% | $85,998 |
| LPL Financial LLC | 0.2% | 21,000 | -6.9% | 0% | $82,740 |
| JANE STREET GROUP, LLC | 0.17% | 17,727 | 0% | $69,844 | |
| Legato Capital Management LLC | 0.17% | 17,550 | 0% | 0.01% | $69,147 |
| BlackRock, Inc. | 0.16% | 17,015 | 0% | 0% | $67,039 |
| STATE STREET CORP | 0.16% | 16,170 | 0% | 0% | $63,710 |
| XTX Topco Ltd | 0.15% | 15,284 | 0% | $60,219 | |
| HRT FINANCIAL LP | 0.11% | 11,288 | 0% | $44,000 | |
| CITIGROUP INC | 0.07% | 7,176 | 0% | $28,273 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 3,107,594 | $12,205,956 | +$955,048 | $3.94 | 35 |
| 2026 Q1 | 2,869,815 | $7,216,791 | -$243,798 | $2.53 | 28 |
| 2025 Q4 | 2,954,928 | $8,437,277 | -$769,403 | $3.17 | 25 |
| 2025 Q3 | 3,191,255 | $10,670,616 | -$71,807 | $3.34 | 25 |
| 2025 Q2 | 3,214,683 | $9,925,095 | +$472,848 | $3.10 | 26 |
| 2025 Q1 | 3,065,390 | $7,508,872 | -$197,843 | $2.45 | 26 |
| 2024 Q4 | 3,137,498 | $8,689,633 | -$61,863 | $2.77 | 29 |
| 2024 Q3 | 3,165,684 | $8,135,386 | -$293,772 | $2.57 | 28 |
| 2024 Q2 | 3,283,498 | $9,061,247 | -$195,452 | $2.76 | 30 |
| 2024 Q1 | 3,353,666 | $11,803,495 | +$1,760,101 | $3.52 | 31 |
| 2023 Q4 | 2,853,608 | $8,386,497 | -$1,522,372 | $2.94 | 29 |
| 2023 Q3 | 3,366,189 | $12,823,685 | -$26,972 | $3.81 | 29 |
| 2023 Q2 | 3,354,304 | $14,389,215 | +$368,710 | $4.29 | 28 |
| 2023 Q1 | 3,287,639 | $16,343,591 | +$2,507,149 | $4.97 | 30 |
| 2022 Q4 | 2,762,237 | $10,962,571 | -$1,359,122 | $3.97 | 29 |
| 2022 Q3 | 3,204,718 | $8,940,502 | -$425,465 | $2.79 | 24 |
| 2022 Q2 | 3,357,503 | $10,305,366 | +$154,333 | $3.07 | 24 |
| 2022 Q1 | 3,306,975 | $14,049,845 | +$380,201 | $4.25 | 25 |
| 2021 Q4 | 3,216,116 | $14,823,855 | -$2,918,941 | $4.61 | 27 |
| 2021 Q3 | 3,582,648 | $23,382,000 | -$276,203 | $6.53 | 30 |
| 2021 Q2 | 3,605,835 | $24,555,000 | +$1,393,223 | $6.81 | 26 |
| 2021 Q1 | 3,423,528 | $18,553,000 | +$762,966 | $5.42 | 27 |
| 2020 Q4 | 3,328,064 | $13,712,260 | -$1,140,252 | $4.12 | 26 |
| 2020 Q3 | 3,418,500 | $10,871,561 | +$18,088 | $3.18 | 22 |
| 2020 Q2 | 3,409,662 | $11,517,112 | +$2,225,160 | $3.38 | 26 |