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Data I/O Corp

DAIO
Exchange
Nasdaq
Industry
Instruments For Meas & Testing of Electricity & Elec Signals
SEC CIK
0000351998

No open-market purchases or sales by Data I/O Corp insiders were filed in the last 90 days; 35 institutions reported holding it in 13F filings for Q2 2026, worth $12.2M in total; no superinvestor holds it.

13F holders, Q1 2025

Institutional positions in Data I/O Corp as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
26
−3 vs. Q4 2024
Shares held
3.07M
−72.1K (−2.3%) vs. Q4 2024
Total value
$7.51M
−$1.18M (−13.6%) vs. Q4 2024
New holders
1
6 more added
Sold out
4
5 more reduced

Compare with Q4 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting DAIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2025: 26 institutions
Q1 2021: 30 institutionsQ2 2021: 30 institutionsQ3 2021: 32 institutionsQ4 2021: 29 institutionsQ1 2022: 29 institutionsQ2 2022: 28 institutionsQ3 2022: 28 institutionsQ4 2022: 30 institutionsQ1 2023: 30 institutionsQ2 2023: 29 institutionsQ3 2023: 29 institutionsQ4 2023: 30 institutionsQ1 2024: 32 institutionsQ2 2024: 32 institutionsQ3 2024: 29 institutionsQ4 2024: 29 institutionsQ1 2025: 26 institutionsQ2 2025: 26 institutionsQ3 2025: 26 institutionsQ4 2025: 27 institutionsQ1 2026: 29 institutionsQ2 2026: 35 institutions
Value heldQ1 2025: $7.51M
Q1 2021: $18.6MQ2 2021: $24.7MQ3 2021: $23.4MQ4 2021: $14.8MQ1 2022: $14.0MQ2 2022: $10.3MQ3 2022: $8.94MQ4 2022: $11.1MQ1 2023: $16.2MQ2 2023: $14.4MQ3 2023: $12.8MQ4 2023: $8.39MQ1 2024: $11.8MQ2 2024: $9.06MQ3 2024: $8.14MQ4 2024: $8.69MQ1 2025: $7.51MQ2 2025: $9.93MQ3 2025: $10.7MQ4 2025: $8.44MQ1 2026: $7.22MQ2 2026: $12.2M
Institutions holding DAIO and their total value by quarter
QuarterHoldersValue
Q2 202635$12.2M
Q1 202629$7.22M
Q4 202527$8.44M
Q3 202526$10.7M
Q2 202526$9.93M
Q1 202526$7.51M
Q4 202429$8.69M
Q3 202429$8.14M
Q2 202432$9.06M
Q1 202432$11.8M
Q4 202330$8.39M
Q3 202329$12.8M
Q2 202329$14.4M
Q1 202330$16.2M
Q4 202230$11.1M
Q3 202228$8.94M
Q2 202228$10.3M
Q1 202229$14.0M
Q4 202129$14.8M
Q3 202132$23.4M
Q2 202130$24.7M
Q1 202130$18.6M

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Data I/O Corp; share changes are against Q4 2024.

Institutions holding DAIO in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Huntington National Bank1$20.00%00.0%Unchanged
SBI Securities Co., Ltd.1$20.00%00.0%Unchanged
JPMorgan Chase & Co17$420.00%−2−10.5%Reduced
Bank of America Corp70$1720.00%+3+4.5%Added
Caldwell Sutter Capital, Inc.588$1.44K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)1,607$3.94K0.00%−76−4.5%Reduced
Simplex Trading, LLC2,194$5.00K0.00%+2,194New
Legato Capital Management LLC10,676$26.2K0.00%00.0%Unchanged
James Investment Research Inc15,402$37.7K0.00%00.0%Unchanged
GWM Advisors LLC15,402$37.7K0.00%00.0%Unchanged
Salem Investment Counselors Inc15,796$38.7K0.00%00.0%Unchanged
Northern Trust Corp16,024$39.3K0.00%00.0%Unchanged
State Street Corp16,170$39.6K0.00%00.0%Unchanged
BlackRock, Inc.17,015$41.7K0.00%00.0%Unchanged
Bard Associates Inc22,188$54.4K0.02%00.0%Unchanged
Citadel Advisors LLC41,221$101.0K0.00%+3,115+8.2%Added
Essex Investment Management Co LLC43,691$107.0K0.02%+4,628+11.8%Added
Geode Capital Management, LLC97,734$239.5K0.00%+1,222+1.3%Added
Bank of New York Mellon Corp116,751$286.0K0.00%00.0%Unchanged
Acadian Asset Management LLC146,540$358.0K0.00%00.0%Unchanged
Dimensional Fund Advisors LP257,352$630.5K0.00%+8,381+3.4%Added
Penbrook Management LLC269,450$660.2K0.50%−2,000−0.7%Reduced
Kovack Advisors, Inc.282,006$690.9K0.07%+2,200+0.8%Added
Vanguard Group Inc358,458$878.2K0.00%−1,496−0.4%Reduced
Renaissance Technologies LLC479,615$1.18M0.00%−24,028−4.8%Reduced
Kanen Wealth Management LLC839,421$2.06M0.83%00.0%Unchanged
Susquehanna International Group, LLP0$00.00%−37,355−100.0%Sold out
UBS Group AG0$00.00%−15,294−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−13,500−100.0%Sold out
Morgan Stanley0$00.00%−100−100.0%Sold out