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3 ·Filed Oct 27, 2026

DAIO

DATA I/O CORP
NEUTRAL
Impact 2/10
Horizonimmediate Processed4d 22h ago SEC0001325533-26-000011
Form 3, initial insider ownership statement
Actionable Insight • Neutral

Monitor future filings (Forms 4 or 13D) for any actual transactions or changes in stake by the Red Oak group, which could signal activist or investment intent.

DirectionNeutral
Confidencehigh
Horizonimmediate
Latest settled: T+1d ⚠ clustered
DAIO ▼ -3.97% at T+1d
NEUTRAL call -3.97% · α vs SPY -3.59% · entry $2.52 → $2.42
Next anchor: T+5d tomorrow
Entry = T+0 close
Oct 27, 2026
via day close
T+1d
-3.97%
call -3.97% · α -3.59%
$2.42
settled 4d ago
T+5d
Pending
tomorrow
T+20d
Pending
in 23d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Red Oak Partners, LLC, Red Oak Fund, LP, Red Oak Long Fund, LP, and David Sandberg filed a Form 3 initial statement of beneficial ownership for Data I/O Corp (DAIO), disclosing indirect ownership of an undisclosed number of common shares. This is a routine initial filing required upon becoming a 10% holder or insider, with no transaction or change in position reported.

Key Facts

  • Form 3 filed by Red Oak Partners, LLC, Red Oak Fund, LP, Red Oak Long Fund, LP, and David Sandberg for Data I/O Corp (DAIO).
  • Reporting persons disclaim beneficial ownership except for pecuniary interest.
  • No specific number of shares owned is disclosed in the filing.
  • Red Oak Fund, LP and Red Oak Long Fund, LP are the direct owners of the securities; Red Oak Partners, LLC is the general partner; David Sandberg is the managing member and portfolio manager.

Financial Impact

No financial impact; no transaction or change in ownership reported.

Risk Factors

  • No ownership amount disclosed, so the size of the stake is unknown.
  • The filing may indicate the group has become a 10% holder, which could precede activist engagement.

Market Snapshot

Exchange
Nasdaq
Sector
Instruments For Meas & Testing of Electricity & Elec Signals
Analyst Consensus
88% bullish (8 analysts)

Investment Themes

Software & IT

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
3 Filing (Primary)0001325533-26-000011
Document: 0001325533-26-000011-index.html0001325533-26-000011
Document: 0001325533-26-000011.txt0001325533-26-000011
18 reports for DAIO
Performance horizon
75% Hit rate @ T+20 3 of 4 directional calls Went positive at some point 5 of 5 best @ T+20▲ +13.98%Aug 12, 2026
Filters
Rows
Reports for DAIO, sortable and filterable
TypeNow
Oct 29, 2026
2d ago
8-K
NEUTRAL ★ 4/10
$2.46awaiting T+20awaiting T+20$2.36 (−4.07%)
Oct 27, 2026
4d ago
3
NEUTRAL ★ 2/10
$2.52awaiting T+20awaiting T+20$2.36 (−6.35%)
Oct 27, 2026
4d ago
SC 13G
NEUTRAL ★ 4/10
$2.52awaiting T+20awaiting T+20$2.36 (−6.35%)
Oct 22, 2026
9d ago
8-K
MIXED ★ 7/10
$2.49awaiting T+20awaiting T+20$2.36 (−5.22%)
Oct 19, 2026
13d ago
8-K
MIXED ★ 6/10
$2.52awaiting T+20awaiting T+20$2.36 (−6.35%)
Oct 19, 2026
13d ago
Press Release
MIXED ★ 6/10
$2.52awaiting T+20awaiting T+20$2.36 (−6.35%)
Oct 19, 2026
13d ago
Press Release
BEARISH ★ 6/10
$2.52awaiting T+20awaiting T+20$2.36 (+6.35%)
Aug 13, 2026
11w ago
EFFECT
BEARISH ★ 5/10
$3.22 $2.77▲ +13.98%▲ +12.23%$2.36 (+26.71%)
Aug 12, 2026
11w ago
Press Release
BEARISH ★ 6/10
$3.22 $2.77▲ +13.98%▲ +12.23%$2.36 (+26.71%)
Aug 11, 2026
11w ago
S-1/A
BEARISH ★ 5/10
$2.92 $2.78▲ +4.79%▲ +3.74%$2.36 (+19.18%)
Showing 10 of 18

US Market Status

Market Closed · Opens Mon (18h 34m)

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Report published Oct 27, 2026