Data I/O Corp (DAIO)

Data I/O Corp experienced significant insider trading activity recently, with Red Oak Partners, LLC acquiring shares valued at approximately $1 million on October 20, 2026. This follows a period where the stock price declined 16.4% over the last quarter, preceding the upcoming earnings report scheduled for late October.
Ticker: DAIO Exchange: NAS


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Data I/O Corp. Upgrade to see score, net flow, insiders and the full signal context.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
3.5
Red Oak Partners, LLC Large shareholder
Transaction date
Purchase
Price
442.85
Quantity 22,151 -3.3%
Value US$2,922,946
3.5
Red Oak Partners, LLC Large shareholder
Transaction date
Purchase
Price
282.54
Quantity 11,434 -28.5%
Value US$3,591,774
3.9
SMITH EDWARD J Non-Executive Director
Transaction date
Purchase
Price
22.13
Quantity 89,570 +37.7%
Value US$2,726,983
3.2
Wentworth William O. President Executive Director
Transaction date
Purchase
Price
2.42
Quantity 10,332 +29.4%
Value US$24,998
2.3
Brown Douglas Wells Non-Executive Director
Transaction date
Purchase
Price
2.66
Quantity 3,000 +3.8%
Value US$7,980
3.8
Ambrose Anthony President Executive Director
Transaction date
Planned sale
Price
5.31
Quantity 10,553 -2.7%
Value US$55,997
3.8
Ambrose Anthony President Executive Director
Transaction date
Planned sale
Price
6.24
Quantity 5,214 -1.3%
Value US$32,553
3.8
Ambrose Anthony President Executive Director
Transaction date
Planned sale
Price
6.42
Quantity 2,701 -0.7%
Value US$17,329
1.7
Gulati Rajeev Vice President CTO Officer
Transaction date
Sale
Price
6.56
Quantity 5,559 -4.0%
Value US$36,471
1.7
Gulati Rajeev Vice President CTO Officer
Transaction date
Sale
Price
7.01
Quantity 300 -0.2%
Value US$2,104
1.7
Gulati Rajeev Vice President CTO Officer
Transaction date
Sale
Price
7.02
Quantity 1,700 -1.2%
Value US$11,930
3.8
Ambrose Anthony President Executive Director
Transaction date
Planned sale
Price
5.66
Quantity 9,670 -2.4%
Value US$54,691
3.8
Ambrose Anthony President Executive Director
Transaction date
Planned sale
Price
5.64
Quantity 17,298 -4.1%
Value US$97,607
3.3
HATLEN JOEL S Vice President CFO COO Officer
Transaction date
Planned sale
Price
6.00
Quantity 1,900 -1.0%
Value US$11,400
3.3
HATLEN JOEL S Vice President CFO COO Officer
Transaction date
Planned sale
Price
6.01
Quantity 1,663 -0.9%
Value US$9,996
2.3
Brown Douglas Wells Non-Executive Director
Transaction date
Sale
Price
6.09
Quantity 15,714 -20.6%
Value US$95,687
2.3
Brown Douglas Wells Non-Executive Director
Transaction date
Sale
Price
6.26
Quantity 2,900 -3.7%
Value US$18,166
3.8
Ambrose Anthony President Executive Director
Transaction date
Planned sale
Price
5.59
Quantity 16,824 -3.9%
Value US$93,979
3.8
Ambrose Anthony President Executive Director
Transaction date
Planned sale
Price
5.51
Quantity 10,087 -2.3%
Value US$55,563
3.8
Ambrose Anthony President
Transaction date
Purchase
Price
2.74
Quantity 10,000 +2.8%
Value US$27,395
Transaction date
Purchase
Price
3.70
Quantity 62,208 +9.6%
Value US$230,188
Transaction date
Purchase
Price
3.71
Quantity 10,292 +1.6%
Value US$38,144
Transaction date
Purchase
Price
3.51
Quantity 55,946 +9.6%
Value US$196,175
Brown Douglas Wells
Transaction date
Sale
Price
13.09
Quantity 7,040 -18.1%
Value US$92,164
3.8
Ambrose Anthony President
Transaction date
Sale
Price
15.97
Quantity 20,000 -6.3%
Value US$319,320
Transaction date
Sale
Price
16.11
Quantity 15,000 -35.8%
Value US$241,682
Transaction date
Sale
Price
11.50
Quantity 12,332 -36.0%
Value US$141,818
3.8
Ambrose Anthony President
Transaction date
Sale
Price
12.73
Quantity 8,400 -2.6%
Value US$106,932
3.3
HATLEN JOEL S Vice President CFO
Transaction date
Sale
Price
12.74
Quantity 100,000 -38.9%
Value US$1,274,370
1.7
Gulati Rajeev Vice President CTO
Transaction date
Planned sale
Price
9.59
Quantity 5,972 -7.4%
Value US$57,295
1.7
Gulati Rajeev Vice President CTO
Transaction date
Planned sale
Price
9.79
Quantity 5,000 -5.9%
Value US$48,928
1.7
Gulati Rajeev Vice President CTO
Transaction date
Planned sale
Price
9.77
Quantity 5,000 -5.5%
Value US$48,846
1.7
Gulati Rajeev Vice President CTO
Transaction date
Planned sale
Price
8.92
Quantity 4,028 -4.3%
Value US$35,918
1.7
Gulati Rajeev Vice President CTO
Transaction date
Planned sale
Price
8.86
Quantity 5,000 -5.0%
Value US$44,290
1.7
Gulati Rajeev Vice President CTO
Transaction date
Sale
Price
8.42
Quantity 6,452 -8.0%
Value US$54,310
1.7
Gulati Rajeev Vice President CTO
Transaction date
Sale
Price
8.27
Quantity 7,000 -8.0%
Value US$57,876
3.7
Howe Alan B Non-Executive Director
Transaction date
Purchase
Price
2.32
Quantity 5,000 +35.5%
Value US$11,581
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
3.33
Quantity 1,200 +5.5%
Value US$3,996
1.6
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
3.25
Quantity 404 +1.9%
Value US$1,313
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
2.66
Quantity 3,000 +16.3%
Value US$7,992
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
2.49
Quantity 4,000 +40.8%
Value US$9,951
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
2.00
Quantity 2,000 +25.6%
Value US$3,998
Brown Douglas Wells Non-Executive Director
Transaction date
Purchase
Price
1.69
Quantity 5,000 +43.9%
Value US$8,441
Brown Douglas Wells Non-Executive Director
Transaction date
Purchase
Price
1.60
Quantity 1,000 +9.6%
Value US$1,602
Myer Kenneth Brian Non-Executive Director
Transaction date
Purchase
Price
1.50
Quantity 3,700 +46.8%
Value US$5,550
3.8
Ambrose Anthony President Executive Director
Transaction date
Purchase
Price
1.50
Quantity 6,800 +8.0%
Value US$10,200
3.8
Ambrose Anthony President Executive Director
Transaction date
Purchase
Price
1.71
Quantity 5,000 +6.2%
Value US$8,545
3.8
Ambrose Anthony President Executive Director
Transaction date
Purchase
Price
1.75
Quantity 5,000 +6.7%
Value US$8,730
1.6
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
2.55
Quantity 856 +74.8%
Value US$2,183
1.6
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
2.49
Quantity 144 +14.4%
Value US$359
1.6
CROWLEY BRIAN Non-Executive Director
Transaction date
Purchase
Price
2.50
Quantity 1,000 +inf%
Value US$2,500
Myer Kenneth Brian Non-Executive Director
Transaction date
Purchase
Price
2.79
Quantity 3,700 +88.1%
Value US$10,323
Brown Douglas Wells Non-Executive Director
Transaction date
Purchase
Price
2.77
Quantity 6,400 +inf%
Value US$17,728
3.3
HATLEN JOEL S CHIEF FINANCIAL OFFICER Officer
Transaction date
Sale
Price
5.92
Quantity 100 -0.1%
Value US$592
Bluechel Gordon Blaire Vice President Officer
Transaction date
Sale
Price
5.72
Quantity 1,001 -19.1%
Value US$5,726
1.8
GARY PAUL A Non-Executive Director
Transaction date
Planned sale
Price
5.60
Quantity 7,500 -9.7%
Value US$42,000
Bluechel Gordon Blaire VICE PRESIDENT, OPS AND ADMIN. Officer
Transaction date
Sale
Price
4.49
Quantity 500 -15.8%
Value US$2,245
3.3
HATLEN JOEL S CHIEF FINANCIAL OFFICER Officer
Transaction date
Sale
Price
4.33
Quantity 2,803 -2.0%
Value US$12,123
1.8
GARY PAUL A Non-Executive Director
Transaction date
Planned sale
Price
4.70
Quantity 7,469 -9.7%
Value US$35,104
1.8
GARY PAUL A Non-Executive Director
Transaction date
Planned sale
Price
4.70
Quantity 31 -0.0%
Value US$146
LEVITICUS PARTNERS L P Large shareholder
Transaction date
Purchase
Price
2.05
Quantity 10,312 +1.0%
Value US$21,140
LEVITICUS PARTNERS L P Large shareholder
Transaction date
Purchase
Price
2.05
Quantity 10,000 +1.0%
Value US$20,499
LEVITICUS PARTNERS L P Large shareholder
Transaction date
Purchase
Price
2.69
Quantity 35,362 +3.8%
Value US$95,294
LEVITICUS PARTNERS L P Large shareholder
Transaction date
Purchase
Price
2.75
Quantity 153,388 +23.0%
Value US$421,817
HUME FREDERICK R President and CEO Executive Director
Transaction date
Planned sale
Price
6.24
Quantity 5,000 -3.7%
Value US$31,200
1.8
GARY PAUL A Non-Executive Director
Transaction date
Sale
Price
5.54
Quantity 1,000 -1.5%
Value US$5,540
1.8
GARY PAUL A Non-Executive Director
Transaction date
Sale
Price
5.60
Quantity 600 -0.9%
Value US$3,360
1.8
GARY PAUL A Non-Executive Director
Transaction date
Sale
Price
5.61
Quantity 2,000 -2.9%
Value US$11,220
1.8
GARY PAUL A Non-Executive Director
Transaction date
Sale
Price
5.62
Quantity 1,400 -2.0%
Value US$7,868
1.9
QUIST STEVEN M Non-Executive Director
Transaction date
Sale
Price
4.55
Quantity 100 -0.9%
Value US$455
1.9
QUIST STEVEN M Non-Executive Director
Transaction date
Sale
Price
4.50
Quantity 7,400 -41.1%
Value US$33,300
1.8
GARY PAUL A Non-Executive Director
Transaction date
Planned sale
Price
6.25
Quantity 2,500 -3.6%
Value US$15,625
3.3
HATLEN JOEL S Chief Financial Officer Officer
Transaction date
Sale
Price
5.98
Quantity 900 -0.8%
Value US$5,378
3.3
HATLEN JOEL S Chief Financial Officer Officer
Transaction date
Sale
Price
5.96
Quantity 2,800 -2.4%
Value US$16,688
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-10-27 2026-10-20 B Purchase Large shareholder
22,151 -3.3%
442.85
US$2,922,946
22,151 -3.3% 442.85 US$2,922,946
2026-10-27 2026-10-20 B Purchase Large shareholder
11,434 -28.5%
282.54
US$3,591,774
11,434 -28.5% 282.54 US$3,591,774
2025-05-08 2025-05-07 B Purchase Non-Executive Director
89,570 +37.7%
22.13
US$2,726,983
89,570 +37.7% 22.13 US$2,726,983
2025-05-07 2025-05-06 B Purchase

President

Executive Director
10,332 +29.4%
2.42
US$24,998
10,332 +29.4% 2.42 US$24,998
2024-08-29 2024-08-26 B Purchase Non-Executive Director
3,000 +3.8%
2.66
US$7,980
3,000 +3.8% 2.66 US$7,980
2021-11-01 2021-11-01 PlS Planned sale

President

Executive Director
10,553 -2.7%
5.31
US$55,997
10,553 -2.7% 5.31 US$55,997
2021-10-04 2021-10-04 PlS Planned sale

President

Executive Director
5,214 -1.3%
6.24
US$32,553
5,214 -1.3% 6.24 US$32,553
2021-10-04 2021-10-01 PlS Planned sale

President

Executive Director
2,701 -0.7%
6.42
US$17,329
2,701 -0.7% 6.42 US$17,329
2021-09-14 2021-09-14 S Sale

Vice President CTO

Officer
5,559 -4.0%
6.56
US$36,471
5,559 -4.0% 6.56 US$36,471
2021-09-14 2021-09-13 S Sale

Vice President CTO

Officer
300 -0.2%
7.01
US$2,104
300 -0.2% 7.01 US$2,104
2021-09-14 2021-09-10 S Sale

Vice President CTO

Officer
1,700 -1.2%
7.02
US$11,930
1,700 -1.2% 7.02 US$11,930
2021-09-02 2021-09-02 PlS Planned sale

President

Executive Director
9,670 -2.4%
5.66
US$54,691
9,670 -2.4% 5.66 US$54,691
2021-09-02 2021-09-01 PlS Planned sale

President

Executive Director
17,298 -4.1%
5.64
US$97,607
17,298 -4.1% 5.64 US$97,607
2021-07-13 2021-07-13 PlS Planned sale

Vice President CFO COO

Officer
1,900 -1.0%
6.00
US$11,400
1,900 -1.0% 6.00 US$11,400
2021-07-13 2021-07-09 PlS Planned sale

Vice President CFO COO

Officer
1,663 -0.9%
6.01
US$9,996
1,663 -0.9% 6.01 US$9,996
2021-06-08 2021-06-07 S Sale Non-Executive Director
15,714 -20.6%
6.09
US$95,687
15,714 -20.6% 6.09 US$95,687
2021-06-08 2021-06-04 S Sale Non-Executive Director
2,900 -3.7%
6.26
US$18,166
2,900 -3.7% 6.26 US$18,166
2021-04-07 2021-04-06 PlS Planned sale

President

Executive Director
16,824 -3.9%
5.59
US$93,979
16,824 -3.9% 5.59 US$93,979
2021-04-07 2021-04-05 PlS Planned sale

President

Executive Director
10,087 -2.3%
5.51
US$55,563
10,087 -2.3% 5.51 US$55,563
2020-03-12 2020-03-12 B Purchase

President

10,000 +2.8%
2.74
US$27,395
10,000 +2.8% 2.74 US$27,395
2019-11-08 2019-11-08 B Purchase
62,208 +9.6%
3.70
US$230,188
62,208 +9.6% 3.70 US$230,188
2019-11-08 2019-11-07 B Purchase
10,292 +1.6%
3.71
US$38,144
10,292 +1.6% 3.71 US$38,144
2019-11-08 2019-11-06 B Purchase
55,946 +9.6%
3.51
US$196,175
55,946 +9.6% 3.51 US$196,175
2017-12-01 2017-11-29 S Sale Brown Douglas Wells
7,040 -18.1%
13.09
US$92,164
7,040 -18.1% 13.09 US$92,164
2017-11-29 2017-11-27 S Sale

President

20,000 -6.3%
15.97
US$319,320
20,000 -6.3% 15.97 US$319,320
2017-11-27 2017-11-27 S Sale
15,000 -35.8%
16.11
US$241,682
15,000 -35.8% 16.11 US$241,682
2017-11-14 2017-11-13 S Sale
12,332 -36.0%
11.50
US$141,818
12,332 -36.0% 11.50 US$141,818
2017-11-14 2017-11-10 S Sale
704 -2.0%
11.50
US$8,096
704 -2.0% 11.50 US$8,096
2017-11-03 2017-11-01 S Sale

President

8,400 -2.6%
12.73
US$106,932
8,400 -2.6% 12.73 US$106,932
2017-11-02 2017-10-31 S Sale

Vice President CFO

100,000 -38.9%
12.74
US$1,274,370
100,000 -38.9% 12.74 US$1,274,370
2017-10-13 2017-10-13 PlS Planned sale

Vice President CTO

5,972 -7.4%
9.59
US$57,295
5,972 -7.4% 9.59 US$57,295
2017-10-13 2017-10-12 PlS Planned sale

Vice President CTO

5,000 -5.9%
9.79
US$48,928
5,000 -5.9% 9.79 US$48,928
2017-10-11 2017-10-11 PlS Planned sale

Vice President CTO

5,000 -5.5%
9.77
US$48,846
5,000 -5.5% 9.77 US$48,846
2017-10-11 2017-10-10 PlS Planned sale

Vice President CTO

4,028 -4.3%
8.92
US$35,918
4,028 -4.3% 8.92 US$35,918
2017-10-11 2017-10-09 PlS Planned sale

Vice President CTO

5,000 -5.0%
8.86
US$44,290
5,000 -5.0% 8.86 US$44,290
2017-09-13 2017-09-12 S Sale

Vice President CTO

6,452 -8.0%
8.42
US$54,310
6,452 -8.0% 8.42 US$54,310
2017-09-13 2017-09-11 S Sale

Vice President CTO

7,000 -8.0%
8.27
US$57,876
7,000 -8.0% 8.27 US$57,876
2016-03-09 2016-03-09 B Purchase Non-Executive Director
5,000 +35.5%
2.32
US$11,581
5,000 +35.5% 2.32 US$11,581
2015-03-17 2015-03-17 B Purchase CROWLEY BRIAN Non-Executive Director
1,200 +5.5%
3.33
US$3,996
1,200 +5.5% 3.33 US$3,996
2015-03-17 2015-03-13 B Purchase Non-Executive Director
404 +1.9%
3.25
US$1,313
404 +1.9% 3.25 US$1,313
2014-05-30 2014-05-30 B Purchase CROWLEY BRIAN Non-Executive Director
3,000 +16.3%
2.66
US$7,992
3,000 +16.3% 2.66 US$7,992
2014-03-04 2014-03-04 B Purchase CROWLEY BRIAN Non-Executive Director
4,000 +40.8%
2.49
US$9,951
4,000 +40.8% 2.49 US$9,951
2013-05-29 2013-05-29 B Purchase CROWLEY BRIAN Non-Executive Director
2,000 +25.6%
2.00
US$3,998
2,000 +25.6% 2.00 US$3,998
2012-12-18 2012-12-14 B Purchase Brown Douglas Wells Non-Executive Director
5,000 +43.9%
1.69
US$8,441
5,000 +43.9% 1.69 US$8,441
2012-12-18 2012-12-14 B Purchase Brown Douglas Wells Non-Executive Director
1,000 +9.6%
1.60
US$1,602
1,000 +9.6% 1.60 US$1,602
2012-12-12 2012-12-11 B Purchase Myer Kenneth Brian Non-Executive Director
3,700 +46.8%
1.50
US$5,550
3,700 +46.8% 1.50 US$5,550
2012-11-27 2012-11-21 B Purchase

President

Executive Director
6,800 +8.0%
1.50
US$10,200
6,800 +8.0% 1.50 US$10,200
2012-11-14 2012-11-12 B Purchase

President

Executive Director
5,000 +6.2%
1.71
US$8,545
5,000 +6.2% 1.71 US$8,545
2012-11-14 2012-11-12 B Purchase

President

Executive Director
5,000 +6.7%
1.75
US$8,730
5,000 +6.7% 1.75 US$8,730
2012-08-16 2012-08-16 B Purchase Non-Executive Director
856 +74.8%
2.55
US$2,183
856 +74.8% 2.55 US$2,183
2012-08-16 2012-08-15 B Purchase Non-Executive Director
144 +14.4%
2.49
US$359
144 +14.4% 2.49 US$359
2012-08-16 2012-08-15 B Purchase Non-Executive Director
1,000 +inf%
2.50
US$2,500
1,000 +inf% 2.50 US$2,500
2012-05-21 2012-05-17 B Purchase Myer Kenneth Brian Non-Executive Director
3,700 +88.1%
2.79
US$10,323
3,700 +88.1% 2.79 US$10,323
2012-05-10 2012-05-10 B Purchase Brown Douglas Wells Non-Executive Director
6,400 +inf%
2.77
US$17,728
6,400 +inf% 2.77 US$17,728
2011-08-12 2011-08-10 S Sale

CHIEF FINANCIAL OFFICER

Officer
100 -0.1%
5.92
US$592
100 -0.1% 5.92 US$592
2011-06-08 2011-06-06 S Sale Bluechel Gordon Blaire

Vice President

Officer
1,001 -19.1%
5.72
US$5,726
1,001 -19.1% 5.72 US$5,726
2010-10-19 2010-10-19 PlS Planned sale Non-Executive Director
7,500 -9.7%
5.60
US$42,000
7,500 -9.7% 5.60 US$42,000
2010-06-07 2010-06-07 S Sale Bluechel Gordon Blaire

VICE PRESIDENT, OPS AND ADMIN.

Officer
500 -15.8%
4.49
US$2,245
500 -15.8% 4.49 US$2,245
2010-06-04 2010-06-04 S Sale

CHIEF FINANCIAL OFFICER

Officer
2,803 -2.0%
4.33
US$12,123
2,803 -2.0% 4.33 US$12,123
2010-04-21 2010-04-21 PlS Planned sale Non-Executive Director
7,469 -9.7%
4.70
US$35,104
7,469 -9.7% 4.70 US$35,104
2010-03-19 2010-03-17 PlS Planned sale Non-Executive Director
31 -0.0%
4.70
US$146
31 -0.0% 4.70 US$146
2008-11-25 2008-11-24 B Purchase LEVITICUS PARTNERS L P Large shareholder
10,312 +1.0%
2.05
US$21,140
10,312 +1.0% 2.05 US$21,140
2008-11-25 2008-11-21 B Purchase LEVITICUS PARTNERS L P Large shareholder
10,000 +1.0%
2.05
US$20,499
10,000 +1.0% 2.05 US$20,499
2008-11-25 2008-11-19 B Purchase LEVITICUS PARTNERS L P Large shareholder
35,362 +3.8%
2.69
US$95,294
35,362 +3.8% 2.69 US$95,294
2008-11-25 2008-11-18 B Purchase LEVITICUS PARTNERS L P Large shareholder
153,388 +23.0%
2.75
US$421,817
153,388 +23.0% 2.75 US$421,817
2008-07-28 2008-07-25 PlS Planned sale

President and CEO

Executive Director
5,000 -3.7%
6.24
US$31,200
5,000 -3.7% 6.24 US$31,200
2008-05-07 2008-05-06 S Sale Non-Executive Director
1,000 -1.5%
5.54
US$5,540
1,000 -1.5% 5.54 US$5,540
2008-05-07 2008-05-06 S Sale Non-Executive Director
600 -0.9%
5.60
US$3,360
600 -0.9% 5.60 US$3,360
2008-05-07 2008-05-06 S Sale Non-Executive Director
2,000 -2.9%
5.61
US$11,220
2,000 -2.9% 5.61 US$11,220
2008-05-07 2008-05-06 S Sale Non-Executive Director
1,400 -2.0%
5.62
US$7,868
1,400 -2.0% 5.62 US$7,868
2008-02-28 2008-02-27 S Sale Non-Executive Director
100 -0.9%
4.55
US$455
100 -0.9% 4.55 US$455
2008-02-28 2008-02-27 S Sale Non-Executive Director
7,400 -41.1%
4.50
US$33,300
7,400 -41.1% 4.50 US$33,300
2007-12-26 2007-12-21 PlS Planned sale Non-Executive Director
2,500 -3.6%
6.25
US$15,625
2,500 -3.6% 6.25 US$15,625
2007-12-14 2007-12-13 S Sale

Chief Financial Officer

Officer
900 -0.8%
5.98
US$5,378
900 -0.8% 5.98 US$5,378
2007-12-14 2007-12-13 S Sale

Chief Financial Officer

Officer
2,800 -2.4%
5.96
US$16,688
2,800 -2.4% 5.96 US$16,688