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DAIO DATA I O CORP

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COM (common), issuer CIK 351998

33 managers (35 13F filers) reported a position in DAIO shares at 2026-06-30, 3,107,594 shares in all. 9 filers opened a position and 3 filers sold out during the quarter.

Managers
33
13F filers
35
New
9
Added
9
Reduced
6
Sold out
3
Shares held by filers
3,107,594

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 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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$3.29M0.8%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC392,443$1.55M<0.01%-15,20013F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding387,439$1.53M+37,065Timeline
Penbrook Management LLC355,850$1.4M0.89%-1,00013F-HRTimeline
Kovack Advisors, Inc.285,481$1.11M0.05%+17,50013F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP140,679$554K<0.01%013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC115,057$453K<0.01%+28,19013F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC108,582$427K<0.01%-15,53713F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC86,869$342K<0.01%new13F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC74,558$294K0.04%-8313F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…48,548$191K<0.01%+21,71113F-HRTimelineGroup
Steward Partners Investment Advisory, L…43,472$171K<0.01%013F-HRTimeline
THOMPSON DAVIS & CO., INC.23,533$92.7K0.06%new13F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.22,402$88.3K0.01%013F-HRTimeline
NewEdge Advisors, LLC22,402$88.3K<0.01%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP21,827$86K<0.01%+8,35113F-HRTimelineGroup
LPL Financial LLC21,000$82.7K<0.01%-1,54513F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC17,727$69.8K<0.01%new13F-HRTimelineGroup
Legato Capital Management LLC17,550$69.1K0.01%013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.17,015$67K<0.01%013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP16,170$63.7K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd15,284$60.2K<0.01%new13F-HRTimelineGroup
HRT FINANCIAL LP11,288$44K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC7,176$28.3K<0.01%new13F-HRTimelineGroup
GROUP ONE TRADING LLC6,450$25.4K<0.01%+6,35013F-HRTimeline
SIMPLEX TRADING, LLC4,279$16.9K<0.01%+1,52013F-HRTimeline
UBS Group AGin group UBS Group AG4,222$16.6K<0.01%+3,28113F-HRTimelineGroup
Point Nemo Capital, LLC500$1.97K<0.01%new13F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…314$1.24K<0.01%-1,36713F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC50$197<0.01%new13F-HRTimelineGroup
Caitong International Asset Management …4$16<0.01%new13F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK1$4<0.01%013F-HRTimelineGroup
SBI Securities Co., Ltd.1$4<0.01%013F-HRTimeline