// company-profile

Data I/o Corp Insider Trading

DAIO

Every SEC Form 4 insider trading filing for Data I/o Corp (DAIO) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.

ExchangeNasdaqSectorInstruments For Meas & Testing of Electricity & Elec SignalsInc.WAFilings50Insiders12
// api This Data I/o Corp insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
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// activity-summary

No insider transactions in the last 30 days.

// 90-day insight

Over the last 90 days, Data I/o Corp insiders bought $231K across 4 transactions with no open-market sales.

  • Most active insider: WASZAK STEVEN M with 1 transaction totaling $58K.
  • Largest single purchase: $58K by WASZAK STEVEN M on Jul 8, 2026.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Data I/o Corp as of 2026-06-30

— stable
Total reported AUM
$3.1M
QoQ change
Reporting period
2026-06-30
#1
Penbrook Management LLC
CIK 1381055
$1.4M
356K shares
#2
Kovack Advisors, Inc.
CIK 1728321
$1.1M
285K shares
#3
ESSEX INVESTMENT MANAGEMENT CO LLC
CIK 201772
$293,759
75K shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jul 8, 2026WASZAK STEVEN MDAIO
Award
16,260$3.56$58K
Jul 8, 2026Larson Garrett RileyDAIO
Award
16,260$3.56$58K
Jul 8, 2026SMITH EDWARD JDAIO
Award
16,260$3.56$58K
Jul 8, 2026Washlow Sally A.DAIO
Award
16,260$3.56$58K
Dec 3, 2025WASZAK STEVEN MDAIO
Award
7,950$2.79$22K

45 more transactions hidden

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