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DAIO DATA I O CORP

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COM (common), issuer CIK 351998

26 managers (26 13F filers) reported a position in DAIO shares at 2025-09-30, 3,191,269 shares in all. 2 filers opened a position and 2 filers sold out during the quarter.

Managers
26
13F filers
26
New
2
Added
6
Reduced
6
Sold out
2
Shares held by filers
3,191,269

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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$2.82M0.94%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC476,834$1.59M<0.01%+49113F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC358,458$1.2M<0.01%013F-HRTimelineGroup
Penbrook Management LLC352,750$1.18M0.82%+3,00013F-HRTimeline
Kovack Advisors, Inc.263,231$879K0.08%-6,20013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP261,125$872K<0.01%-8,98513F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC133,221$444K<0.01%013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp116,751$390K<0.01%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC101,615$339K<0.01%+4,01613F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC74,641$249K0.04%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC41,572$139K<0.01%-79713F-HRTimelineGroup
Steward Partners Investment Advisory, L…34,917$117K<0.01%+14,00013F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.22,402$74.8K0.01%013F-HRTimeline
NewEdge Advisors, LLC22,402$74.8K<0.01%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP19,106$63.8K<0.01%+82913F-HRTimelineGroup
Legato Capital Management LLC17,550$58.6K0.01%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.17,015$56.8K<0.01%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP16,170$54K<0.01%013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…15,428$51.5K<0.01%-7,28013F-HRTimelineGroup
UBS Group AGin group UBS Group AG2,716$9.07K<0.01%new13F-HRTimelineGroup
SIMPLEX TRADING, LLC2,812$9K<0.01%-2,36913F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,031$3.44K<0.01%-11313F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/85$284<0.01%+213F-HR/ATimelineGroup
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$3<0.01%013F-HRTimelineGroup
SBI Securities Co., Ltd.1$3<0.01%013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA14$00%new13F-HRTimelineGroupValue filed as zero, left out of ratios.