DAIO
DATA I/O CORP
Instruments For Meas & Testing of Electricity & Elec SignalsNasdaqNon-accelerated filer<br>Smaller reporting company
Total Trades
3
Buys
3
Sells
0
Largest Trade
$15K–$50K
Insiders
3
Institutional Funds
21
Inst. Value
$1M+
Activist Filings
7
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| SMITH EDWARD J | Director | BUY | $1K–$15K | 5K | $2.46 | May 8, 2025 |
| Wentworth William O. | President | BUY | $15K–$50K | 10K | $2.42 | May 7, 2025 |
| Brown Douglas Wells | Director | BUY | $1K–$15K | 3K | $2.66 | Aug 29, 2024 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 21 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Kanen Wealth Management LLC | 839K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 438K | $1M+ | SH |
| Penbrook Management LLC | 357K | $1M+ | SH |
| Kovack Advisors, Inc. | 269K | $500K+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 177K | $500K+ | SH |
| ACADIAN ASSET MANAGEMENT LLC | 125K | $100K–$500K | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 91K | $100K–$500K | SH |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 75K | $100K–$500K | SH |
| Steward Partners Investment Advisory, LLC | 43K | $100K–$500K | SH |
| NewEdge Advisors, LLC | 22K | $50K–$100K | SH |
| JAMES INVESTMENT RESEARCH, INC. | 22K | $50K–$100K | SH |
| Legato Capital Management LLC | 18K | $50K–$100K | SH |
| BlackRock, Inc. | 17K | $50K–$100K | SH |
| STATE STREET CORP | 16K | $50K–$100K | SH |
| DRW Securities, LLC | 12K | $15K–$50K | SH |
| VANGUARD GROUP INC | 5K | $15K–$50K | SH |
| SIMPLEX TRADING, LLC | 2K | $1K–$15K | SH |
| Capital Analysts, LLC | 159 | $1K–$15K | SH |
| BARD ASSOCIATES INC | 100 | <$1K | SH |
| HUNTINGTON NATIONAL BANK | 1 | <$1K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 12, 2026
4.7%
438K shares
SC 13G/A · May 22, 2025
5.3%
487K shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 13, 2024
6.0%
543K shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 13, 2023
6.2%
545K shares
SC 13G/A · Jan 11, 2023
5.4%
47.9M shares
SC 13G/A · Dec 13, 2022
0.5%
4.4M shares
Renaissance Technologies LLC 26-0385758
SC 13G/A · Feb 11, 2022
7.5%
646K shares