Data I DAIO Insider Ownership

NASDAQ DAIO
$2.52 -0.06 (-2.33%)
At close: Oct 19, 2026 · 4:00 PM EDT

Insider Holdings by Owner

3.27Mn Shares

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 Shares Traded (QoQ)
+54.70K
net buying in Sep 2026
Insiders Holding Shares
13
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

In the last 12 months, insiders at Data I neither bought nor sold shares on the open market.

Form 4 Holdings

Insiders Holding DAIO

Insiders 13
Shares held 3.27Mn
Of outstanding 31.44%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Anthony Ambrose President 1,389,992 0 1,389,992 42.5% 03 Jun, 2024
2 Rajeev Gulati Vice President Cto 473,729 0 473,729 14.5% 03 May, 2024
3 Michael R Tidwell Vp Mktg Corp Bus Dev 431,168 0 431,168 13.2% 03 May, 2024
4 Joel S Hatlen Vice President Cfo Coo 178,119 0 178,119 5.5% 02 Jun, 2023
5 Gerald Yat Ng Vice President Cfo 168,750 0 168,750 5.2% 03 May, 2024
6 Douglas Wells Brown Director 166,118 0 166,118 5.1% 19 May, 2025
7 Sally A. Washlow Director 127,162 0 127,162 3.9% 10 Jul, 2026
8 Edward J Smith Director 103,090 0 103,090 3.2% 10 Jul, 2026
9 Charles Joseph Dibona Vice President Cfo 89,655 0 89,655 2.7% 03 Sep, 2026
10 William O. Wentworth President 53,972 0 53,972 1.7% 05 Dec, 2025
11 Garrett Riley Larson Director 46,832 0 46,832 1.4% 10 Jul, 2026
12 Steven M Waszak Director 24,210 0 24,210 0.7% 10 Jul, 2026
13 Cheemin Bo-Linn Director 15,401 0 15,401 0.5% 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

575 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
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 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
08 Jul, 2026 Sally A. Washlow Director Acquired A 16,260 $3.56 $57.80K 88,911 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
03 Sep, 2024 William O. Wentworth President Acquired A 200,000 $2.39 $478.46K 200,000 Direct
26 Aug, 2024 Douglas Wells Brown Director Acquired P 3,000 $2.66 $7.98K 81,459 Direct