DATA I/O CORP (DAIO) Institutional Ownership Changes & 13F Activity

DATA I/O CORP (DAIO). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Citadel Advisors Llc, Geode Capital Management, Llc, Vanguard Capital Management Llc, Thompson Davis & Co., Inc., and Susquehanna International Group, Llp.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcBuy+173,738—173,738$684.53KQ2 2026Sep 02, 2026
Susquehanna International Group, LlpBuy+21,711+80.9%48,548$191.28KQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+17,727—17,727$69.84KQ2 2026Aug 14, 2026
Xtx Topco LtdBuy+15,284—15,284$60.22KQ2 2026Aug 14, 2026
Hrt Financial LpBuy+11,288—11,288$44.00KQ2 2026Aug 14, 2026
Group One Trading LlcBuy+6,350+6350.0%6,450$25.41KQ2 2026Aug 14, 2026
Barclays PlcBuy+50—50$197.00Q2 2026Aug 14, 2026
Vanguard Capital Management LlcBuy+24,275+8.1%323,672$1.28MQ2 2026Aug 13, 2026
Acadian Asset Management LlcSell-15,537-12.5%108,582$427.00KQ2 2026Aug 13, 2026
Renaissance Technologies LLCSell-15,200-3.7%392,443$1.55MQ2 2026Aug 13, 2026
Vanguard Fiduciary Trust CoBuy+12,790+27.9%58,643$231.05KQ2 2026Aug 13, 2026
Northern Trust CorpBuy+8,351+62.0%21,827$86.00KQ2 2026Aug 13, 2026
Ubs Group AgBuy+3,281+348.7%4,222$16.64KQ2 2026Aug 13, 2026
Geode Capital Management, LlcBuy+28,190+32.5%115,057$453.42KQ2 2026Aug 12, 2026
Simplex Trading, LlcBuy+1,520+55.1%4,279$16.86KQ2 2026Aug 12, 2026
Tower Research Capital Llc (Trc)Sell-1,367-81.3%314$1.24KQ2 2026Aug 11, 2026
Lpl Financial LlcSell-1,545-6.9%21,000$82.74KQ2 2026Aug 07, 2026
Point Nemo Capital, LlcBuy+500—500$1.97KQ2 2026Aug 07, 2026
Essex Investment Management Co LlcSell-83-0.1%74,558$293.76KQ2 2026Aug 06, 2026
Caitong International Asset Management Co., LtdBuy+4—4$16.00Q2 2026Aug 05, 2026
Citigroup IncBuy+7,176—7,176$28.27KQ2 2026Aug 03, 2026
Thompson Davis & Co., Inc.Buy+23,533—23,533$92.72KQ2 2026Jul 29, 2026
Kovack Advisors, Inc.Buy+17,500+6.5%285,481$1.11MQ2 2026Jul 29, 2026
Penbrook Management LlcSell-1,000-0.3%355,850$1.40MQ2 2026Jul 23, 2026
Goldman Sachs Group IncSell-13,788-100.0%0$0.00Q2 2026May 15, 2026
Royal Bank Of CanadaSell-136-100.0%0$0.00Q2 2026May 15, 2026
Bard Associates IncSell-100-100.0%0$0.00Q2 2026May 08, 2026
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Frequently asked questions about DAIO activity

  • Which institutional owners are buying DAIO?

    Institutional owners buying DAIO include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in DAIO activity?

    "Buy" means an investor increased their reported position in DAIO compared to the prior reporting period. This reflects growing exposure to DATA I/O CORP (DAIO) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in DAIO increasing?

    Institutional interest in DAIO can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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