DAIO

DATA I/O CORP · Technology · Market cap $26.9M

DATA I/O CORP (DAIO) has 8 SEC Form 4 filings (8 transaction rows) in the rolling window, disclosed by 0 distinct insiders. Most recent filing: Sep 3, 2026.

  • Industry:Hardware, Equipment & Parts
  • CEO:William O. Wentworth
  • Employees:94
  • HQ:Redmond, WA, US
  • IPO:1989-01-03

No open-market insider trades for DAIO (DATA I/O CORP) in the last 365 days.

Why this page may be quiet. Tracefour displays Form 4 open-market purchases (P) and sales (S): the two transaction codes that signal directional conviction. Restricted stock grants, option exercises, gifts, and tax-withholding sales are filed but intentionally not shown: they're disclosure mechanics, not buy/sell decisions.

Many large-cap executives trade through pre-scheduled 10b5-1 plans set months in advance and batch-disclosed each quarter, so the latest filing on EDGAR for a mega-cap can be weeks old without any insider actually choosing to trade in that window.

See all Form 4 filings on SEC EDGAR ↗

Frequently asked questions

How many SEC Form 4 insider filings does DAIO have?

DATA I/O CORP (DAIO) has 8 SEC Form 4 filings (8 transaction rows) in the rolling 365-day window, disclosed by 0 distinct insiders. Most recent filing: Sep 3, 2026.

When was the most recent SEC Form 4 filing for DAIO?

The most recent Form 4 filing for DAIO on Tracefour is dated Sep 3, 2026.

Can I get alerts for DAIO insider trading?

Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at DATA I/O CORP (DAIO). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.

Related companies

DATA I/O CORP is in the Technology sector.