Institutional Ownership
Data I O Corp
CUSIP 237690102COMDAIOQ1 2026
13D / 13G Filings
16
Schedule 13D/13G on record
Beneficial Filers
6
Distinct reporting persons
Largest Stake
9.1%
Max % of class reported
Institutional Holders
26
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
16 filings · latest Feb 12, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 12, 2026 | Renaissance Technologies LLC | 13G/A | 4.7% | 437.6K | SEC |
| 2 | May 22, 2025 | Philotimo Fund, LP | 13G/A | 9.1% | 839.4K | SEC |
| 3 | Feb 13, 2024 | Renaissance Technologies LLC | 13G/A | 6.0% | 542.6K | SEC |
| 4 | Feb 13, 2023 | Renaissance Technologies LLC | 13G/A | 6.2% | 544.6K | SEC |
| 5 | Jan 11, 2023 | Philotimo Fund, LP | 13G/A | 5.4% | 479.1K | SEC |
| 6 | Dec 13, 2022 | Philotimo Fund, LP | 13G/A | 0.5% | 44.4K | SEC |
| 7 | Feb 11, 2022 | Renaissance Technologies LLC | 13G/A | 7.5% | 646.2K | SEC |
| 8 | Nov 16, 2021 | Philotimo Fund, LP | 13G | 6.9% | 593.5K | SEC |
| 9 | Feb 12, 2021 | Select Equity Group, L.P. | 13G/A | 2.2% | 185.5K | SEC |
| 10 | Feb 12, 2021 | Dimensional Fund Advisors LP | 13G/A | 4.2% | 357.4K | SEC |
6 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Data I O Corp.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Kanen Wealth Management LLC | 839.4K | $2.12M |
| 2 | Renaissance Technologies LLC | 407.6K | $1.03M |
| 3 | Penbrook Management LLC | 356.9K | $902.8K |
| 4 | Kovack Advisors, Inc. | 268.0K | $635.1K |
| 5 | Dimensional Fund Advisors LP | 140.7K | $355.9K |
| 6 | Geode Capital Management, LLC | 86.9K | $219.8K |
| 7 | Essex Investment Management Co LLC | 74.6K | $188.8K |
| 8 | Steward Partners Investment Advisory, LLC | 43.5K | $110.0K |
| 9 | Susquehanna International Group, LLP | 26.8K | $67.9K |
| 10 | Lpl Financial LLC | 22.5K | $57.0K |