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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 2025-12-31, 2,955,197 shares in all. 3 filers opened a position and 2 filers sold out during the quarter.

Managers
27
13F filers
27
New
3
Added
8
Reduced
7
Sold out
2
Shares held by filers
2,955,197

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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$1.73M0.53%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC437,637$1.39M<0.01%-39,19713F-HRTimeline
Penbrook Management LLC356,850$1.13M0.78%+4,10013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC350,374$1.11M<0.01%-8,08413F-HRTimelineGroup
Kovack Advisors, Inc.268,906$852K0.04%+5,67513F-HR/ATimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP180,249$571K<0.01%-80,87613F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC125,219$396K<0.01%-8,00213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC104,582$332K<0.01%+2,96713F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC74,641$237K0.04%013F-HRTimeline
Steward Partners Investment Advisory, L…43,472$138K<0.01%+8,55513F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC32,882$104K<0.01%-8,69013F-HRTimelineGroup
JAMES INVESTMENT RESEARCH, INC.22,402$71K0.01%013F-HRTimeline
NewEdge Advisors, LLC22,402$71K<0.01%013F-HRTimeline
Legato Capital Management LLC17,550$55.6K<0.01%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.17,015$53.9K<0.01%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP16,170$51.3K<0.01%013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…15,697$49.8K<0.01%+26913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP13,476$42.7K<0.01%-5,63013F-HRTimelineGroup
DRW Securities, LLC11,731$37.2K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,131$6.75K<0.01%+1,10013F-HRTimelineGroup
SIMPLEX TRADING, LLC1,932$6.12K<0.01%-88013F-HRTimeline
Capital Analysts, LLCin group Capital Analysts, LLC159$1K<0.01%new13F-HR/ATimelineGroup
BARD ASSOCIATES INC100$317<0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/87$275<0.01%+213F-HRTimelineGroup
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 CANADA110$00%+9613F-HRTimelineGroupValue filed as zero, left out of ratios.