Security key
237690102
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 2,869,815
- Total 13F value
- $7,216,791
- Share change
- -85,113
- Put/Call ratio
- 105%
- SEC-reported price per share
- $2.53
- Number of holders
- 28
- Value change
- -$243,798
- Number of buys
- 6
- Number of sells
- 9
- Shares outstanding
- 10,367,919
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
Q1 2026
Institutions
28
Top holders
10
DAIO full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 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:
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
Philotimo Fund, LP
Comparable rows
15/15
Latest evidence
31 Dec 2025
13D/G
13F
3/4/5
Lead comparable stake: 9.1%
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%.
15 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 5
Philotimo Fund, LP
9.1%
RENAISSANCE TECHNOLOGIES LLC
4.7%
Douglas Wells Brown
0.98%
Charles Joesph DiBona
0.96%
Sally A. Washlow
0.7%
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%
|
$1,939,063
839,421 shares
|
$0 | 22 May 2025 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
13D/G
Company
|
4.7%
from 13D/G
|
$1,387,309
437,637 shares
|
— | 31 Dec 2025 |
| Douglas Wells Brown |
3/4/5
Director
|
0.98%
|
$252,362
101,759 shares
|
— | 15 May 2025 |
| Charles Joesph DiBona |
3/4/5
Vice President & CFO
|
0.96%
|
$315,430
100,000 shares
|
— | 01 Sep 2025 |
| Sally A. Washlow |
3/4/5
Director
|
0.7%
|
$180,174
72,651 shares
|
— | 15 May 2025 |
| Edward J. Smith |
3/4/5
Director
|
0.61%
|
$156,525
63,115 shares
|
— | 15 May 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 Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
28
Shares
2,869,815
Rows available
28
| 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 Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
25
Q1 2026 holders
28
Holder diff
3
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend