Data I/ODAIO
13F holders, Q4 2024 (December 31)At the end of Q4 2024, 29 institutions reported holding Data I/O Corp. (DAIO) in their 13F filings, unchanged from Q3 2024. 3 opened new positions and 4 sold out. The largest holders were Kanen Wealth Management LLC ($2.3M), Renaissance Technologies ($1.4M) and Vanguard Group Inc. ($997K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Data I/O Corp.
- CUSIP
- 237690102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 3 | $175K |
| Exits | 4 | $204K |
All 13F filers, Q3 2024 → Q4 2024: 77,706 shares bought and 105,894 shares sold, net −28,188 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 29 holders
| Kanen Wealth Management LLC | 0.87% | No change | 839,421 | $2.3M |
| Renaissance Technologies | 0.00% | Add +0.7% | 503,643 | $1.4M |
| Vanguard Group Inc. | 0.00% | Reduce -0.5% | 359,954 | $997K |
| Kovack Advisors, Inc. | 0.08% | Reduce -7.1% | 279,806 | $775K |
| Penbrook Management LLC | 0.51% | No change | 271,450 | $752K |
| Dimensional Fund Advisors LP | 0.00% | No change | 248,971 | $690K |
| Acadian Asset Management LLC | 0.00% | No change | 146,540 | $405K |
| Bank of New York Mellon Corp | 0.00% | No change | 116,751 | $323K |
| Geode Capital Management, LLC | 0.00% | No change | 96,512 | $267K |
| Essex Investment Management Co. LLC | 0.02% | Add +37.6% | 39,063 | $108K |
| Citadel Advisors | 0.00% | Reduce -6.0% | 38,106 | $106K |
| Susquehanna International Group, LLP | 0.00% | New | 37,355 | $103K |
| Bard Associates Inc. | 0.02% | Reduce -1.8% | 22,188 | $61K |
| BlackRock, Inc. | 0.00% | No change | 17,015 | $47K |
| State Street Corp. | 0.00% | No change | 16,170 | $45K |
| Northern Trust Corp. | 0.00% | No change | 16,024 | $44K |
| Salem Investment Counselors Inc. | 0.00% | No change | 15,796 | $44K |
| James Investment Research, Inc. | 0.01% | No change | 15,402 | $43K |
| NewEdge Advisors, LLC | 0.00% | No change | 15,402 | $43K |
| UBS Group AG | 0.00% | New | 15,294 | $42K |
| Janney Montgomery Scott LLC | 0.00% | Add +0.4% | 13,500 | $37K |
| Legato Capital Management LLC | 0.00% | New | 10,676 | $30K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -9.6% | 1,683 | $5K |
| Caldwell Sutter Capital, Inc. | 0.00% | No change | 588 | $2K |
| Morgan Stanley | 0.00% | No change | 100 | $277 |
| Bank of America Corp. | 0.00% | No change | 67 | $186 |
| JPMorgan Chase & Co. | 0.00% | No change | 19 | $53 |
| Huntington National Bank | 0.00% | No change | 1 | $3 |
| SBI Securities Co., Ltd. | 0.00% | — | 1 | $3 |
"% of holder's portfolio" is DAIO's weight in each manager's 13F, not the share of Data I/O Corp. the manager owns.