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DAIO DATA I O CORP

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COM (common), issuer CIK 351998

27 managers (27 13F filers) reported a position in DAIO shares at 2025-06-30, 3,214,683 shares in all. 3 filers opened a position and 3 filers sold out during the quarter.

Managers
27
13F filers
27
New
3
Added
10
Reduced
6
Sold out
3
Shares held by filers
3,214,683

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Kanen Wealth Management LLC839,421$2.59M0.99%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC476,343$1.48M<0.01%-3,27213F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC358,458$1.1M<0.01%013F-HRTimelineGroup
Penbrook Management LLC349,750$1.08M0.82%+80,30013F-HR/ATimeline
Kovack Advisors, Inc.269,431$835K0.08%-12,57513F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP270,110$829K<0.01%+12,75813F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC133,221$408K<0.01%-13,31913F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp116,751$362K<0.01%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC97,599$300K<0.01%-13513F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC74,641$231K0.04%+30,95013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC42,369$130K<0.01%+1,14813F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…22,708$69.7K<0.01%new13F-HRTimelineGroup
JAMES INVESTMENT RESEARCH, INC.22,402$69.4K0.01%+7,00013F-HRTimeline
NewEdge Advisors, LLC22,402$69.4K<0.01%+7,00013F-HRTimeline
BARD ASSOCIATES INC21,738$66.7K0.02%-45013F-HRTimeline
Steward Partners Investment Advisory, L…20,917$64.8K<0.01%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP18,277$56.7K<0.01%+2,25313F-HRTimelineGroup
Legato Capital Management LLC17,550$54.4K0.01%+6,87413F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.17,015$52.7K<0.01%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP16,170$49.6K<0.01%013F-HRTimelineGroup
SIMPLEX TRADING, LLC5,181$16K<0.01%+2,98713F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,144$3.55K<0.01%-46313F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC1,000$3.1K<0.01%new13F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/83$258<0.01%+1313F-HRTimelineGroup
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$3<0.01%013F-HRTimelineGroup
SBI Securities Co., Ltd.1$3<0.01%013F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.