DOSSIER · 13F Holders · Q2 2026
DAIO

DATA I O CORP

34 institutions still hold DATA I O CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 237690102·34 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$13M
visible holders
Holders
34
filers reporting
Concentration
25.78%
Kanen Wealth Management LLC #1
top holder share
AI Holders Summary · Q2 2026

34 institutions reported DAIO in Q2 2026. Kanen Wealth Management LLC leads at 25.8% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Kanen Wealth Management LLC
CIK 0001681614
$3M839K0.80%Q2 2026
02
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$2M392K0.00%Q2 2026
03
Penbrook Management LLC
CIK 0001381055
$1M356K0.89%Q2 2026
04
CITADEL ADVISORS LLC
CIK 0001423053
$1M427K0.00%Q4 2025
05
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$1M324K0.00%Q2 2026
06
Kovack Advisors, Inc.
CIK 0001728321
$1M285K0.05%Q2 2026
07
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$554K141K0.00%Q2 2026
08
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$453K115K0.00%Q2 2026
09
ACADIAN ASSET MANAGEMENT LLC
CIK 0000916542
$313K124K0.00%Q1 2026
10
ESSEX INVESTMENT MANAGEMENT CO LLC
CIK 0000201772
$294K75K0.04%Q2 2026
11
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$231K59K0.00%Q2 2026
12
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$191K49K0.00%Q2 2026
13
Steward Partners Investment Advisory, LLC
CIK 0001723397
$171K43K0.00%Q2 2026
14
THOMPSON DAVIS & CO., INC.
CIK 0001017284
$93K24K0.06%Q2 2026
15
NewEdge Advisors, LLC
CIK 0001633516
$88K22K0.00%Q2 2026
16
JAMES INVESTMENT RESEARCH, INC.
CIK 0000810384
$88K22K0.01%Q2 2026
17
NORTHERN TRUST CORP
CIK 0000073124· Index
$86K22K0.00%Q2 2026
18
LPL Financial LLC
CIK 0001403438
$83K21K0.00%Q2 2026
19
Legato Capital Management LLC
CIK 0001442641
$69K18K0.01%Q2 2026
20
BlackRock, Inc.
CIK 0002012383
$67K17K0.00%Q2 2026
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14 more holders available. Log in →
Insiders at DATA I O CORP
Larson Garrett RileyWaszak Steven MWashlow Sally A.Smith Edward JWentworth William O.Dibona Charles JosephBrown Douglas WellsNg Gerald Yat