Security key
237690102
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 2,954,928
- Total 13F value
- $8,437,277
- Share change
- -236,327
- Put/Call ratio
- 0%
- SEC-reported price per share
- $3.17
- Number of holders
- 25
- Value change
- -$769,403
- Number of buys
- 9
- Number of sells
- 9
- Shares outstanding
- 13,326,214
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
25
Top holders
10
DAIO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
DATA I/O CORP SEC filings
DATA I/O CORP company facts
Broader feeds
Reporting periods
Holder history for CUSIP 237690102
Recent filing periods:
Ownership snapshot
Top reported holders of DAIO - DATA I/O CORP - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Philotimo Fund, LP
Disclosed value leader
Kanen Wealth Management LLC
Comparable rows
2/15
Latest evidence
30 Sep 2025
13D/G
13F
3/4/5
Lead comparable stake: 9.1%
13 rows are not safely comparable across share classes.
13D/G row: Philotimo Fund, LP
Showing 1-6 of 15 holder rows.
Quick read
Philotimo Fund, LP leads the comparable SEC ownership view at 9.1%.
2 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Philotimo Fund, LP's linked filing trail.
Comparable ownership
Top 2
Philotimo Fund, LP
9.1%
RENAISSANCE TECHNOLOGIES LLC
4.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Philotimo Fund, LP |
13D/G
Kanen David
|
9.1%
Reported 13D/G
· 22 May 2025
|
$1,939,063
839,421 shares
|
$0 | 22 May 2025 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
13D/G
Company
|
4.7%
Reported 13D/G
· 31 Dec 2025
|
$1,592,626
476,834 shares
|
— | 30 Sep 2025 |
| Kanen Wealth Management LLC |
13F
Company
|
—
denominator unverified
|
$2,816,762
839,421 shares
|
— | 30 Sep 2025 |
| Anthony Ambrose |
3/4/5
President, Director
|
—
denominator unverified
|
$1,351,908
471,048 shares
|
— | 01 Jun 2024 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$1,197,250
358,458 shares
|
— | 30 Sep 2025 |
| Penbrook Management LLC |
13F
Company
|
—
denominator unverified
|
$1,178,185
352,750 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
25
Shares
2,954,928
Rows available
25
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
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 change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend