Security Snapshot

DATA I/O CORP - Common Stock (DAIO) Institutional Ownership

CUSIP: 237690102

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

25

Shares (Excl. Options)

2,954,928

Price

$3.17

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Type / Class
Equity / Common Stock
Symbol
DAIO on Nasdaq
Shares outstanding
9,391,352
Price per share
$2.53
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
2,954,928
Total reported value
$8,437,277
% of total 13F portfolios
0%
Share change
-236,327
Value change
-$769,403
Number of holders
25
Price from insider filings
$2.53
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Quick Takeaways

  • DAIO - DATA I/O CORP - Common Stock is tracked under CUSIP 237690102.
  • 25 institutions reported positions in Q4 2025.
  • 2 significant owners is listed from Schedule 13D/13G reporting.

What Changed

  • Holder count moved from 25 to 1 between Q4 2025 and Q1 2026.
  • Reported value moved from $8,437,277 to $902,830.

Why This Matters

  • 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.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 25 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 237690102?
CUSIP 237690102 identifies DAIO - DATA I/O CORP - Common Stock in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

Significant Owners of DATA I/O CORP - Common Stock (DAIO) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
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 31 Dec 2025, 25 institutional investors reported holding 2,954,928 shares of DATA I/O CORP - Common Stock (DAIO). This represents 31% of the company’s total 9,391,352 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of DATA I/O CORP - Common Stock (DAIO) together control 31% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Kanen Wealth Management LLC 8.9% 839,421 0% 0.54% $1,732,000
RENAISSANCE TECHNOLOGIES LLC 4.7% 437,637 -8.2% 0% $1,387,309
Penbrook Management LLC 3.8% 356,850 +1.2% 0.78% $1,131,215
VANGUARD GROUP INC 3.7% 350,374 -2.3% 0% $1,110,685
Kovack Advisors, Inc. 2.9% 268,906 +2.2% 0.04% $852,432
DIMENSIONAL FUND ADVISORS LP 1.9% 180,249 -31% 0% $571,389
ACADIAN ASSET MANAGEMENT LLC 1.3% 125,219 -6% 0% $396,000
GEODE CAPITAL MANAGEMENT, LLC 1.1% 104,582 +2.9% 0% $331,593
ESSEX INVESTMENT MANAGEMENT CO LLC 0.79% 74,641 0% 0.04% $236,612
Steward Partners Investment Advisory, LLC 0.46% 43,472 +25% 0% $137,806
CITADEL ADVISORS LLC 0.35% 32,882 -21% 0% $104,236
NewEdge Advisors, LLC 0.24% 22,402 0% 0% $71,014
JAMES INVESTMENT RESEARCH, INC. 0.24% 22,402 0% 0.01% $71,014
Legato Capital Management LLC 0.19% 17,550 0% 0% $55,633
BlackRock, Inc. 0.18% 17,015 0% 0% $53,938
STATE STREET CORP 0.17% 16,170 0% 0% $51,259
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.17% 15,697 +1.7% 0% $49,759
NORTHERN TRUST CORP 0.14% 13,476 -29% 0% $42,719
DRW Securities, LLC 0.12% 11,731 0% $37,187
Tower Research Capital LLC (TRC) 0.02% 2,131 +107% 0% $6,755
SIMPLEX TRADING, LLC 0.02% 1,932 -31% 0% $6,124
BARD ASSOCIATES INC 0% 100 0% $317
BANK OF AMERICA CORP /DE/ 0% 87 +2.4% 0% $275
HUNTINGTON NATIONAL BANK 0% 1 0% 0% $3
SBI Securities Co., Ltd. 0% 1 0% 0% $3

Institutional Holders of DATA I/O CORP - Common Stock (DAIO) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 356,850 $902,830 $2.53 1
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
2020 Q1 2,502,327 $7,030,567 -$206,788 $2.81 24
2019 Q4 2,761,729 $11,667,208 +$801,679 $4.21 28
2019 Q3 2,562,572 $9,973,723 -$229,396 $3.89 29
2019 Q2 2,616,100 $11,771,731 -$1,679,524 $4.50 29
2019 Q1 2,930,745 $16,267,507 +$145,805 $5.55 40
2018 Q4 2,890,867 $14,456,000 -$3,194,603 $5.00 33
2018 Q3 3,498,358 $18,280,000 -$293,422 $5.23 39
2018 Q2 3,537,543 $22,454,000 -$761,974 $6.35 41
2018 Q1 3,617,725 $26,911,000 -$3,044,092 $7.44 42
2017 Q4 3,638,949 $43,822,000 +$12,465,436 $12.04 40
2017 Q3 2,080,092 $20,718,000 +$1,485,018 $9.96 28
2017 Q2 2,018,257 $16,035,000 +$4,363,788 $7.94 32
2017 Q1 1,484,192 $7,403,000 +$872,050 $4.99 21
2016 Q4 1,322,458 $5,526,000 +$164,452 $4.18 20
2016 Q3 1,747,122 $6,132,000 +$203,903 $3.52 19
2016 Q2 1,690,104 $3,971,000 +$121,788 $2.35 17
2016 Q1 1,637,302 $4,265,000 -$421,404 $2.62 14
2015 Q4 1,804,782 $4,547,000 -$324,086 $2.52 15
2015 Q3 1,933,283 $4,504,000 +$67,674 $2.33 14
2015 Q2 1,904,061 $6,511,000 +$944,095 $3.42 14
2015 Q1 1,628,126 $6,008,000 +$523,258 $3.70 16
2014 Q4 1,486,766 $5,035,000 -$5,086 $3.38 12
2014 Q3 1,488,771 $4,898,000 +$138,419 $3.29 14
2014 Q2 1,446,481 $4,354,000 +$28,042 $3.01 13
2014 Q1 1,441,574 $4,253,000 +$96,956 $2.40 13