Data I DAIO Insider Ownership

NASDAQ DAIO

$2.51 +0.06 (+2.41%)

As of: Nov 10, 2026 · 12:40 PM EST

Insider Holdings by Owner

3.64Mn Shares

Anthony Ambrose1.39Mn38.2%

Rajeev Gulati473.73K13.0%

Michael R Tidwell431.17K11.8%

Oak Partners, Llc Red373.13K10.2%

Joel S Hatlen178.12K4.9%

Other insiders (9)795.19K21.8%

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

5.56%

▲+0.526% pp QoQ

Shares Held by Insiders

578.46K

filed for Sep 2026

▲+10.44% QoQ

Shares Outstanding

10.40Mn

10,395,627 shares

Direct Holdings

578.46K

Indirect: 0

Net Open-Market Trades

no open-market trades 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 —

Open-Market Insider Trades

Bought Sold

Latest quarter —

Net over range —

Net-buying quarters —

Insider Ownership Summary

Updated Oct 28, 2026

In the last 12 months, insiders at Data I made open-market purchases of $999,996 (373.13K shares) and sold no shares on the open market.

Among Data I's insiders, the largest open-market purchases in the past 12 months were by Red Oak Partners, LLC (10% owner), totaling $999,996 (373.13K shares), most recently on October 20, 2026.
Outside the open market, Data I insiders received 32.77K shares in stock awards and gave up 10.35K shares to cover taxes or exercise prices over the past 12 months.
Business Quant data shows Data I insiders holding 951.6K shares in total in their latest Form 4 filings, up 81.68% from 523.77K shares at the end of Q2 2026.
Indirect holdings, through trusts, partnerships, family members and other entities, make up 39.21% (373.13K shares) of Data I's insider total, with the other 60.79% (578.46K shares) held directly.
The insider holdings in Data I belong to 9 insiders who have reported on Form 4 within the past two years.
Data I's three largest insider shareholders, based on their latest Form 4 filings, are Red Oak Partners, LLC (10% owner, 373.13K shares), Douglas Wells Brown (Director, 101.76K shares) and Gerald Yat Ng (Vice President CFO, 93.75K shares).
The largest insider, Red Oak Partners, LLC, holds 39.21% of DAIO's insider total.
Institutions accounted for 29.89% of DAIO's outstanding shares in Q2 2026, insiders about 9.15% per their latest Form 4 filings, and other investors, including the public, about 60.96%.
In the past year, 7 insiders of Data I submitted 9 Form 4 filings reporting trades, awards or other transactions.
These insider figures for Data I are based on Form 4 filings through October 27, 2026.

Form 4 Holdings

Insiders Holding DAIO

Insiders 14

Shares held 3.64Mn

Of outstanding 35.03%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Anthony Ambrose	President	1,389,992	0	1,389,992	38.2%	03 Jun, 2024
2	Rajeev Gulati	Vice President Cto	473,729	0	473,729	13.0%	03 May, 2024
3	Michael R Tidwell	Vp Mktg Corp Bus Dev	431,168	0	431,168	11.8%	03 May, 2024
4	Oak Partners, Llc Red	TenPercentOwner	0	373,133	373,133	10.2%	27 Oct, 2026
5	Joel S Hatlen	Vice President Cfo Coo	178,119	0	178,119	4.9%	02 Jun, 2023
6	Gerald Yat Ng	Vice President Cfo	168,750	0	168,750	4.6%	03 May, 2024
7	Douglas Wells Brown	Director	166,118	0	166,118	4.6%	19 May, 2025
8	Sally A. Washlow	Director	127,162	0	127,162	3.5%	10 Jul, 2026
9	Edward J Smith	Director	103,090	0	103,090	2.8%	10 Jul, 2026
10	Charles Joseph Dibona	Vice President Cfo	89,655	0	89,655	2.5%	03 Sep, 2026
11	William O. Wentworth	President	53,972	0	53,972	1.5%	05 Dec, 2025
12	Garrett Riley Larson	Director	46,832	0	46,832	1.3%	10 Jul, 2026
13	Steven M Waszak	Director	24,210	0	24,210	0.7%	10 Jul, 2026
14	Cheemin Bo-Linn	Director	15,401	0	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

577 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
20 Oct, 2026	Oak Partners, Llc Red	TenPercentOwner	Acquired P	242,934	$2.68	$651.06K	242,934	Indirect
20 Oct, 2026	Oak Partners, Llc Red	TenPercentOwner	Acquired P	130,199	$2.68	$348.93K	130,199	Indirect
01 Sep, 2026	Charles Joseph Dibona	Vice President Cfo	Disposed F	10,345	$2.89	$29.85K	89,655	Direct
08 Jul, 2026	Garrett Riley Larson	Director	Acquired A	16,260	$3.56	$57.80K	46,832	Direct
08 Jul, 2026	Steven M Waszak	Director	Acquired A	16,260	$3.56	$57.80K	24,210	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
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	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
15 May, 2025	Garrett Riley Larson	Director	Acquired A	20,300	$2.48	$50.34K	30,572	Direct
15 May, 2025	Douglas Wells Brown	Director	Acquired A	20,300	$2.48	$50.34K	101,759	Direct
15 May, 2025	Sally A. Washlow	Director	Acquired A	20,300	$2.48	$50.34K	72,651	Direct
15 May, 2025	Edward J Smith	Director	Acquired A	20,300	$2.48	$50.34K	63,115	Direct
07 May, 2025	Edward J Smith	Director	Acquired P	5,000	$2.46	$12.30K	42,815	Direct
01 May, 2025	William O. Wentworth	President	Acquired P	10,585	$2.36	$24.98K	35,085	Direct
06 May, 2025	William O. Wentworth	President	Acquired P	10,332	$2.42	$25.00K	45,417	Direct
02 May, 2025	William O. Wentworth	President	Acquired A	10,585	$2.36	$24.98K	35,085	Direct
23 Jan, 2025	Garrett Riley Larson	Director	Acquired A	5,272	$2.91	$15.34K	5,272	Direct

Showing 1 to 20 of 577 transactions