Data I/O Corp

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Data I/O Corp
TickerDAIO
CIK #0000351998
CUSIP237690102
SectorLife Sciences - Instruments For Meas & Testing Of Electricity & Elec Signals
Address6464 185th Ave Ne, Suite 101, Redmond, WA 98052
Source [EDGAR]
CIK Filing 2011 - 2025
[0000351998] 10-K
[0000351998] 10-Q
[0000351998] 3
[0000351998] 4
[0000351998] 8-K
[0000351998] SC 13D
[0000351998] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Philotimo Fund LP Data I/O Corp [2024-01-05] 5.3
Philotimo Fund LP Data I/O Corp [2021-11-16] 6.9
Select Equity Group LP Data I/O Corp [2020-10-30] 8.5
Select Equity Group LP Data I/O Corp [2020-07-10] 8.7
DH Partners LLC Data I/O Corp [2019-11-12] 11.0
Dimensional Fund Advisors LP Data I/O Corp [2019-02-08] 5.12
DH Partners LLC Data I/O Corp [2018-11-09] 5.9
Renaissance Technologies LLC Data I/O Corp [2018-02-14] 7.99
Kanen Wealth Management LLC Data I/O Corp [2016-08-08] 19.21
Howe Kevin C Data I/O Corp [2014-04-14] 5.12
[2012-10-01] None
Form 3/4/5 Filer 2011 - 2025
Washlow Sally A.
Data I/O Corp
Brown Douglas Wells
Larson Garrett Riley
Smith Edward J
Wentworth William O.
Ng Gerald Yat
Gulati Rajeev
Tidwell Michael R
Ambrose Anthony
Hatlen Joel S
Bo-Linn Cheemin
Gallenberger Mark J
Delafield John D
Howe Alan B
Crowley Brian
Kanen David
Kanen Wealth Management LLC
Bluechel Gordon Blaire
Myer Kenneth Brian
Hume Frederick R
Walker William R
Quist Steven M
Form 13F Holdings
Firm Period DFND Voting Shares
Kanen Wealth Management LLC [2025-06-30] SOLE 839,421 839,421
Penbrook Management LLC [2025-06-30] SOLE 0 619,200
Renaissance Technologies LLC [2025-06-30] SOLE 476,343 476,343
Vanguard Group Inc [2025-06-30] SOLE 0 353,334
Kovack Advisors Inc [2025-06-30] SOLE 0 269,431
Dimensional Fund Advisors LP [2025-06-30] SOLE 256,102 267,037
Acadian Asset Management LLC [2025-06-30] DFND 133,221 133,221
Bank of New York Mellon Corp [2025-06-30] DFND 116,751 116,751
Geode Capital Management LLC [2025-06-30] DFND 97,599 97,599
Essex Investment Management Co LLC [2025-06-30] SOLE 74,641 74,641
Citadel Advisors LLC [2025-06-30] DFND 42,369 42,369
Susquehanna International Group LLP [2025-06-30] OTR 22,708 22,708
Newedge Advisors LLC [2025-06-30] SOLE 22,402 22,402
James Investment Research Inc [2025-06-30] SOLE 22,402 22,402
Bard Associates Inc [2025-06-30] SOLE 0 21,738
Steward Partners Investment Advisory LLC [2025-06-30] SOLE 0 20,917
Northern Trust Corp [2025-06-30] DFND 18,277 18,277
Legato Capital Management LLC [2025-06-30] OTR 0 17,550
BlackRock, Inc. [2025-06-30] SOLE 17,015 17,015
State Street Corp [2025-06-30] DFND 16,170 16,170
Simplex Trading LLC [2025-06-30] SOLE 5,181 5,181
Vanguard Group Inc [2025-06-30] DFND 0 5,124
Dimensional Fund Advisors LP [2025-06-30] DFND 0 3,073
Tower Research Capital LLC (TRC) [2025-06-30] DFND 1,144 1,144
Raymond James Financial Inc [2025-06-30] DFND 0 1,000
Bank of America Corp /DE/ [2025-06-30] DFND 0 83
SBI Securities Co., Ltd. [2025-06-30] DFND 1 1
Huntington National Bank [2025-06-30] DFND 0 1
Concourse Financial Group Securities Inc [2025-06-30] SOLE 0 0
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