Data I DAIO Insider Ownership

NASDAQ DAIO

$2.84 +0.04 (+1.43%)

As of: Sep 9, 2026 · 11:07 AM EDT

Insider Holdings by Owner

3.46Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

0.164%

■0% pp QoQ

Shares Held by Insiders

15.40K

filed for Sep 2026

■0.00% QoQ

Shares Outstanding

9.39Mn

9,389,000 shares

Direct Holdings

15.40K

Indirect: 0

Net Shares Traded (QoQ)

no net change in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

DAIO's three largest insider shareholders as of September 09, 2026 are Anthony Ambrose (President, 476.53K shares), Anthony Ambrose (President, 471.05K shares), Anthony Ambrose (President, 442.42K shares).

A detailed ownership breakdown for Data I is not available at this time.
Per Business Quant data, insider ownership at Data I represents 16.09% of total outstanding shares, amounting to 15.40K shares out of 9.57Mn outstanding.
Data I's count of insider shares amounted to 15.40K as of September 09, 2026.
Among insider personnel at Data I, Edward J Smith (Director) bought the most shares, adding 32.52K shares in the 90-day window ending September 09, 2026.
On the selling side, Charles Joseph Dibona (Vice President Cfo) led at Data I with 10.35K shares sold during the same 90-day period ending September 09, 2026.

Form 4 Holdings

Insiders Holding DAIO

Insiders 13

Shares held 3.46Mn

Of outstanding 36.84%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	Anthony Ambrose	President	1,389,992	1,389,992	40.2%	03 Jun, 2024
2	Rajeev Gulati	Vice President Cto	473,729	473,729	13.7%	03 May, 2024
3	Michael R Tidwell	Vp Mktg Corp Bus Dev	431,168	431,168	12.5%	03 May, 2024
4	Joel S Hatlen	Vice President Cfo Coo	368,640	368,640	10.7%	02 Jun, 2023
5	Gerald Yat Ng	Vice President Cfo	168,750	168,750	4.9%	03 May, 2024
6	Douglas Wells Brown	Director	166,118	166,118	4.8%	19 May, 2025
7	Sally A. Washlow	Director	127,162	127,162	3.7%	10 Jul, 2026
8	Edward J Smith	Director	103,090	103,090	3.0%	10 Jul, 2026
9	Charles Joseph Dibona	Vice President Cfo	89,655	89,655	2.6%	03 Sep, 2026
10	William O. Wentworth	President	53,972	53,972	1.6%	05 Dec, 2025
11	Garrett Riley Larson	Director	46,832	46,832	1.4%	10 Jul, 2026
12	Steven M Waszak	Director	24,210	24,210	0.7%	10 Jul, 2026
13	Cheemin Bo-Linn	Director	15,401	15,401	0.4%	20 May, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,505 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
08 Jul, 2026	Garrett Riley Larson	Director	Acquired A	16,260	$3.56	$57.80K	46,832	Direct
08 Jul, 2026	Sally A. Washlow	Director	Acquired A	16,260	$3.56	$57.80K	88,911	Direct
08 Jul, 2026	Edward J Smith	Director	Acquired A	16,260	$3.56	$57.80K	79,375	Direct
08 Jul, 2026	Steven M Waszak	Director	Acquired A	16,260	$3.56	$57.80K	24,210	Direct
02 Dec, 2025	William O. Wentworth	President	Acquired A	7,455	$2.78	$20.75K	52,872	Direct
03 Dec, 2025	William O. Wentworth	President	Acquired A	1,100	$2.80	$3.08K	53,972	Direct
02 Dec, 2025	William O. Wentworth	President	Acquired A	7,455	$2.78	$20.75K	52,872	Direct
02 Dec, 2025	William O. Wentworth	President	Acquired A	7,455	$2.78	$20.75K	52,872	Direct
03 Dec, 2025	William O. Wentworth	President	Acquired A	1,100	$2.80	$3.08K	53,972	Direct
02 Dec, 2025	William O. Wentworth	President	Acquired A	7,455	$2.78	$20.75K	52,872	Direct
03 Dec, 2025	William O. Wentworth	President	Acquired A	1,100	$2.80	$3.08K	53,972	Direct
03 Dec, 2025	William O. Wentworth	President	Acquired A	1,100	$2.80	$3.08K	53,972	Direct
03 Dec, 2025	Steven M Waszak	Director	Acquired A	7,950	$2.79	$22.19K	7,950	Direct
03 Dec, 2025	Steven M Waszak	Director	Acquired A	7,950	$2.79	$22.19K	7,950	Direct
03 Dec, 2025	Steven M Waszak	Director	Acquired A	7,950	$2.79	$22.19K	7,950	Direct
03 Dec, 2025	Steven M Waszak	Director	Acquired A	7,950	$2.79	$22.19K	7,950	Direct
01 Sep, 2025	Charles Joseph Dibona	Vice President Cfo	Acquired A	100,000	$3.15	$315.43K	100,000	Direct
01 Sep, 2025	Charles Joseph Dibona	Vice President Cfo	Acquired A	100,000	$3.15	$315.43K	100,000	Direct
01 Sep, 2025	Charles Joseph Dibona	Vice President Cfo	Acquired A	100,000	$3.15	$315.43K	100,000	Direct
01 Sep, 2025	Charles Joseph Dibona	Vice President Cfo	Acquired A	100,000	$3.15	$315.43K	100,000	Direct

Showing 1 to 20 of 1,505 transactions