Security key
237690102
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 9,391,352
- Total 13F shares
- 2,954,928
- Share change
- -236,327
- Total reported value
- $8,437,277
- Put/Call ratio
- 0%
- Price per share
- $3.17
- Number of holders
- 25
- Value change
- -$769,403
- Number of buys
- 9
- Number of sells
- 9
Report period
Q4 2025
Institutions
25
Top holders
10
DAIO full security history
Newer quarter: Q1 2026
Previous quarter: Q3 2025
DATA I/O CORP SEC filings
DATA I/O CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 237690102
Recent filing periods:
Top shareholders of DAIO - DATA I/O CORP - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Philotimo Fund, LP |
13D/G
|
Kanen David |
9.1%
|
839,421
|
$1,939,063 | $0 | 22 May 2025 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
13D/G
|
Company |
4.7%
from 13D/G
|
476,834
|
$1,592,626 | — | 30 Sep 2025 | |
| Douglas Wells Brown |
3/4/5
|
Director |
1.1%
|
101,759
|
$252,362 | — | 15 May 2025 | |
| Charles Joesph DiBona |
3/4/5
|
Vice President & CFO |
1.1%
|
100,000
|
$315,430 | — | 01 Sep 2025 | |
| Sally A. Washlow |
3/4/5
|
Director |
0.77%
|
72,651
|
$180,174 | — | 15 May 2025 | |
| Edward J. Smith |
3/4/5
|
Director |
0.67%
|
63,115
|
$156,525 | — | 15 May 2025 | |
| Wentworth William O |
3/4/5
|
President, Director |
0.56%
|
52,872
|
$147,195 | — | 03 Dec 2025 | |
| Garrett Riley Larson |
3/4/5
|
Director |
0.33%
|
30,572
|
$75,818 | — | 15 May 2025 | |
| Steven M. Waszak |
3/4/5
|
Director |
0.08%
|
7,950
|
$22,192 | — | 03 Dec 2025 | |
| Kanen Wealth Management LLC |
13F
|
Company |
8.9%
|
839,421
|
$2,816,762 | — | 30 Sep 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
3.8%
|
358,458
|
$1,197,250 | — | 30 Sep 2025 | |
| Penbrook Management LLC |
13F
|
Company |
3.8%
|
352,750
|
$1,178,185 | — | 30 Sep 2025 | |
| Kovack Advisors, Inc. |
13F
|
Company |
2.8%
|
263,231
|
$879,192 | — | 30 Sep 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2.8%
|
261,125
|
$872,158 | — | 30 Sep 2025 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
1.4%
|
133,221
|
$444,000 | — | 30 Sep 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
1.2%
|
116,751
|
$389,949 | — | 30 Sep 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.1%
|
101,615
|
$339,470 | — | 30 Sep 2025 | |
| ESSEX INVESTMENT MANAGEMENT CO LLC |
13F
|
Company |
0.79%
|
74,641
|
$249,301 | — | 30 Sep 2025 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.44%
|
41,572
|
$138,850 | — | 30 Sep 2025 | |
| Steward Partners Investment Advisory, LLC |
13F
|
Company |
0.37%
|
34,917
|
$116,623 | — | 30 Sep 2025 | |
| JAMES INVESTMENT RESEARCH, INC. |
13F
|
Company |
0.24%
|
22,402
|
$74,823 | — | 30 Sep 2025 | |
| NewEdge Advisors, LLC |
13F
|
Company |
0.24%
|
22,402
|
$74,823 | — | 30 Sep 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.2%
|
19,106
|
$63,814 | — | 30 Sep 2025 | |
| Legato Capital Management LLC |
13F
|
Company |
0.19%
|
17,550
|
$58,617 | — | 30 Sep 2025 | |
| BlackRock, Inc. |
13F
|
Company |
0.18%
|
17,015
|
$56,830 | — | 30 Sep 2025 | |
| STATE STREET CORP |
13F
|
Company |
0.17%
|
16,170
|
$54,008 | — | 30 Sep 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.16%
|
15,428
|
$51,530 | — | 30 Sep 2025 | |
| SIMPLEX TRADING, LLC |
13F
|
Company |
0.03%
|
2,812
|
$9,000 | — | 30 Sep 2025 | |
| UBS Group AG |
13F
|
Company |
0.03%
|
2,716
|
$9,071 | — | 30 Sep 2025 | |
| Tower Research Capital LLC (TRC) |
13F
|
Company |
0.01%
|
1,031
|
$3,444 | — | 30 Sep 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0%
|
85
|
$284 | — | 30 Sep 2025 | |
| HUNTINGTON NATIONAL BANK |
13F
|
Company |
0%
|
1
|
$3 | — | 30 Sep 2025 | |
| SBI Securities Co., Ltd. |
13F
|
Company |
0%
|
1
|
$3 | — | 30 Sep 2025 | |
| Anthony Ambrose |
3/4/5
|
President, Director |
—
class O/S missing
|
471,048
|
$1,351,908 | — | 01 Jun 2024 | |
| Joel S. Hatlen |
3/4/5
|
Vice President CFO COO |
—
class O/S missing
|
178,119
|
$774,818 | — | 01 Jun 2023 | |
| Rajeev Gulati |
3/4/5
|
Vice President CTO |
—
class O/S missing
|
167,897
|
$481,864 | — | 01 Jun 2024 | |
| Michael R. Tidwell |
3/4/5
|
VP Mktg & Corp Bus Dev |
—
class O/S missing
|
147,774
|
$424,111 | — | 01 Jun 2024 | |
| Mark J. Gallenberger |
3/4/5
|
Director |
—
class O/S missing
|
69,509
|
$302,364 | — | 20 May 2021 | |
| Gerald Yat Ng |
3/4/5
|
Vice President CFO |
—
class O/S missing
|
88,191
|
$246,053 | — | 03 Jul 2024 | |
| Cheemin Bo-Linn |
3/4/5
|
Director |
—
class O/S missing
|
15,401
|
$66,994 | — | 19 May 2022 |
Institutional Holders of DATA I/O CORP - Common Stock (DAIO) as of Q4 2025
As of 31 Dec 2025,
DATA I/O CORP - Common Stock (DAIO) was held by
25 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
2,954,928 shares.
The largest 10 holders included
Kanen Wealth Management LLC, RENAISSANCE TECHNOLOGIES LLC, Penbrook Management LLC, VANGUARD GROUP INC, Kovack Advisors, Inc., DIMENSIONAL FUND ADVISORS LP, ACADIAN ASSET MANAGEMENT LLC, GEODE CAPITAL MANAGEMENT, LLC, ESSEX INVESTMENT MANAGEMENT CO LLC, and Steward Partners Investment Advisory, LLC.
This page lists
25
institutional shareholders reporting positions in this security
for the Q4 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
25
Q4 2025 holders
25
Holder diff
0
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 Value $ | Q4 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.