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CIK 0000351998 · Non-accelerated filer<br>Smaller reporting company

DATA I/O CORP

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Ticker
DAIO
Exchange
Nasdaq
Industry
Instruments For Meas & Testing of Electricity & Elec Signals
FY end
Dec 11
Incorporated
WA
Entity type
operating
EIN
910864123
Phone
4258676922
Business address
6645 185TH AVE NE, SUITE 100, REDMOND, WA, 98052
Open-market buys, last 90 days
$999,996
in 1 filing
Open-market sales, last 90 days
$0
in 0 filings

Net +$999,996. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Red Oak Partners, LLC +$1000K 10% owner 1 filing

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-10-20 Red Oak Partners, LLC 10% owner Purchase +242,934 $2.68 $651K 242,934
2026-10-20 Red Oak Partners, LLC 10% owner Purchase +130,199 $2.68 $349K 130,199
2026-10-20 Red Oak Partners, LLC 10% owner Purchase · 5% Convertible Debenture +0 $1,953,192.04 $0
2026-10-20 Red Oak Partners, LLC 10% owner Purchase · 5% Convertible Debenture +0 $1,046,808.00 $0
2026-09-01 DiBona Charles Joseph Vice President & CFO Shares withheld for taxes −10,345 $2.89 $30K 89,655
2026-07-08 Larson Garrett Riley Director Grant or award +16,260 $3.56 $58K 46,832
2026-07-08 SMITH EDWARD J Director Grant or award +16,260 $3.56 $58K 79,375
2026-07-08 Washlow Sally A. Director Grant or award +16,260 $3.56 $58K 88,911
2026-07-08 WASZAK STEVEN M Director Grant or award +16,260 $3.56 $58K 24,210
2025-12-03 Wentworth William O. President Grant or award +1,100 $2.80 $3K 53,972
2025-12-03 WASZAK STEVEN M Director Grant or award +7,950 $2.79 $22K 7,950
2025-12-02 Wentworth William O. President Grant or award +7,455 $2.78 $21K 52,872
2025-09-01 DiBona Charles Joseph Vice President & CFO Grant or award +100,000 $3.15 $315K 100,000
2025-05-15 SMITH EDWARD J Director Grant or award +20,300 $2.48 $50K 63,115
2025-05-15 Larson Garrett Riley Director Grant or award +20,300 $2.48 $50K 30,572
2025-05-15 Brown Douglas Wells Director Grant or award +20,300 $2.48 $50K 101,759
2025-05-15 Washlow Sally A. Director Grant or award +20,300 $2.48 $50K 72,651
2025-05-07 SMITH EDWARD J Director Purchase +5,000 $2.46 $12K 42,815
2025-05-06 Wentworth William O. President Purchase +10,332 $2.42 $25K 45,417
2025-05-02 Wentworth William O. President Grant or award +10,585 $2.36 $25K 35,085

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