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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.

Insider
Date
Role
Action
Shares
Price
Amount
Ambrose Anthony
1 Nov 2021
President
Sell
10,553
$5.31
$56.00K
Ambrose Anthony
4 Oct 2021
President
Sell
5,214
$6.24
$32.55K
Ambrose Anthony
1 Oct 2021
President
Sell
2,701
$6.42
$17.33K
Gulati Rajeev
14 Sep 2021
Vice President CTO
Sell
5,559
$6.56
$36.47K
Gulati Rajeev
13 Sep 2021
Vice President CTO
Sell
300
$7.01
$2.10K
Gulati Rajeev
10 Sep 2021
Vice President CTO
Sell
1,700
$7.02
$11.93K
HATLEN JOEL S
9 Sep 2021
Vice President CFO COO
Sell
2,500
$7.50
$18.75K
Brown Douglas Wells
9 Sep 2021
Director
Sell
12,000
$7.28
$87.33K
HATLEN JOEL S
8 Sep 2021
Vice President CFO COO
Sell
13,708
$7.01
$96.06K
HATLEN JOEL S
7 Sep 2021
Vice President CFO COO
Sell
2,000
$7.01
$14.02K
Ambrose Anthony
2 Sep 2021
President
Sell
9,670
$5.66
$54.69K
Ambrose Anthony
1 Sep 2021
President
Sell
17,298
$5.64
$97.61K
Brown Douglas Wells
4 Aug 2021
Director
Sell
5,360
$6.47
$34.67K
HATLEN JOEL S
13 Jul 2021
Vice President CFO COO
Sell
1,900
$6.00
$11.40K
HATLEN JOEL S
9 Jul 2021
Vice President CFO COO
Sell
1,663
$6.01
$10.00K
HATLEN JOEL S
8 Jul 2021
Vice President CFO COO
Sell
800
$6.06
$4.84K
HATLEN JOEL S
7 Jul 2021
Vice President CFO COO
Sell
1,672
$6.10
$10.20K
HATLEN JOEL S
6 Jul 2021
Vice President CFO COO
Sell
18,379
$6.28
$115.34K
Brown Douglas Wells
7 Jun 2021
Director
Sell
15,714
$6.09
$95.69K
Brown Douglas Wells
4 Jun 2021
Director
Sell
2,900
$6.26
$18.17K
Ambrose Anthony
3 Jun 2021
President
Sell
12,432
$6.25
$77.65K
Ambrose Anthony
2 Jun 2021
President
Sell
12,539
$6.10
$76.49K
Ambrose Anthony
6 Apr 2021
President
Sell
16,824
$5.59
$93.98K
Ambrose Anthony
5 Apr 2021
President
Sell
10,087
$5.51
$55.56K
Brown Douglas Wells
29 Nov 2017
Director
Sell
7,040
$13.09
$92.16K
Howe Alan B
27 Nov 2017
Director
Sell
15,000
$16.11
$241.68K
Ambrose Anthony
27 Nov 2017
President
Sell
20,000
$15.97
$319.32K
GALLENBERGER MARK J
13 Nov 2017
Director
Sell
12,332
$11.50
$141.82K
GALLENBERGER MARK J
10 Nov 2017
Director
Sell
704
$11.50
$8.10K
Ambrose Anthony
1 Nov 2017
President
Sell
8,400
$12.73
$106.93K
HATLEN JOEL S
31 Oct 2017
Vice President CFO
Sell
100,000
$12.74
$1.27M
Gulati Rajeev
13 Oct 2017
Vice President CTO
Sell
5,972
$9.59
$57.30K
Gulati Rajeev
12 Oct 2017
Vice President CTO
Sell
5,000
$9.79
$48.93K
Gulati Rajeev
11 Oct 2017
Vice President CTO
Sell
5,000
$9.77
$48.85K
Gulati Rajeev
10 Oct 2017
Vice President CTO
Sell
4,028
$8.92
$35.92K
Gulati Rajeev
9 Oct 2017
Vice President CTO
Sell
5,000
$8.86
$44.29K
Gulati Rajeev
11 Sep 2017
Vice President CTO
Sell
7,000
$8.27
$57.88K

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