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DATA I/O CORP

DAIO Net selling

CIK 0000351998 #4902 in the set updated 22 Sep 2026

Bought (120 mo)

$537.18K

out of their own pocket, the only kind of buying there is

Sold (120 mo)

$3.66M

$0.00 on a plan · $54.31K straight out of an exercise

Sold at will

$3.61M

37 of 38 sales

Net

−$3.12M

−$3.07M against sales at will

By person

17 insiders · 57 transactions

Insider

Role

Bought

Sold

Net

Holding

Worth

Change

HATLEN JOEL S

Vice President CFO COO

—

$1.55M (9)

−$1.55M

178,119

$438.17K

−26.9%

Ambrose Anthony

President

$27.40K (1)

$988.11K (11)

−$960.72K

471,048

$1.16M

+117.0%

DELAFIELD JOHN D

Director

$464.51K (3)

—

+$464.51K

2,041,878

$5.02M

+8.5%

Gulati Rajeev

Vice President CTO

—

$397.97K (10)

−$397.97K

167,897

$413.03K

+203.3%

Brown Douglas Wells

Director

$7.98K (1)

$328.02K (5)

−$320.04K

101,759

$250.33K

+181.9%

Howe Alan B

Director

—

$241.68K (1)

−$241.68K

65,832

$161.95K

+168.7%

GALLENBERGER MARK J

Director

—

$149.91K (2)

−$149.91K

69,509

$170.99K

+256.5%

Wentworth William O.

President

$25.00K (1)

—

+$25.00K

53,972

$132.77K

—

SMITH EDWARD J

Director

$12.30K (1)

—

+$12.30K

79,375

$195.26K

—

Ng Gerald Yat

Vice President CFO

—

181,941

$447.57K

+94.1%

Tidwell Michael R

VP Mktg & Corp Bus Dev

—

147,774

$363.52K

—

DiBona Charles Joseph

Vice President & CFO

—

89,655

$220.55K

—

Washlow Sally A.

Director

—

88,911

$218.72K

—

CROWLEY BRIAN

Director

—

50,556

$124.37K

+57.5%

Larson Garrett Riley

Director

—

46,832

$115.21K

+836.6%

WASZAK STEVEN M

Director

—

24,210

$59.56K

—

Bo-Linn Cheemin

Director

—

15,401

$37.89K

—

No percentages here. These insiders hold more than one class of share between them, and the share count on file covers one of them rather than all. Dividing the two would compare different things.

Individual transactions

Insider

Date

Role

Action

Price

Amount

SMITH EDWARD J

7 May 2025

Director

Buy

5,000

$2.46

$12.30K

Wentworth William O.

6 May 2025

President

Buy

10,332

$2.42

$25.00K

Brown Douglas Wells

26 Aug 2024

Director

Buy

3,000

$2.66

$7.98K

Ambrose Anthony

12 Mar 2020

President

Buy

10,000

$2.74

$27.40K

DELAFIELD JOHN D

8 Nov 2019

Director

Buy indirect

62,208

$3.70

$230.19K

DELAFIELD JOHN D

7 Nov 2019

Director

Buy indirect

10,292

$3.71

$38.14K

DELAFIELD JOHN D

6 Nov 2019

Director

Buy indirect

55,946

$3.51

$196.17K

Show all 57 transactions →

What was left out

Form 4 filings counted 177

Amendments (4/A) skipped 2

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 1

Sales at will 37

Transactions with no price 0

Shares from compensation/vesting 2,728,789

Sales filed before the plan box existed 37

History held since 27 Oct 2016