Data I/O Corporation shares owned by Penbrook Managment
Quarter-by-quarter ownership of Data I/O Corporation (DAIO) shares owned by Penbrook Managment
from 13F filings
Historical chart of Penbrook Managment investment in Data I/O Corporation
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Quarterly reported holdings in Data I/O Corporation by Penbrook Managment
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $1.2M | 353k | 3.34 |
| 2025-06-30 | $660k | 270k | 2.45 |
| 2025-03-31 | $660k | 270k | 2.45 |
| 2024-12-31 | $752k | 272k | 2.77 |
| 2024-09-30 | $698k | 272k | 2.57 |
| 2024-06-30 | $861k | 312k | 2.76 |
| 2024-03-31 | $1.1M | 312k | 3.52 |
| 2023-12-31 | $1.0M | 342k | 2.94 |
| 2023-09-30 | $1.3M | 344k | 3.81 |
| 2023-06-30 | $1.5M | 347k | 4.29 |
| 2023-03-31 | $1.7M | 347k | 4.97 |
| 2022-12-31 | $1.4M | 350k | 3.97 |
| 2022-09-30 | $979k | 351k | 2.79 |
| 2022-06-30 | $1.1M | 351k | 3.07 |
| 2022-03-31 | $1.5M | 351k | 4.25 |
| 2021-12-31 | $1.6M | 351k | 4.61 |
| 2021-09-30 | $2.3M | 349k | 6.53 |
| 2021-06-30 | $2.4M | 350k | 6.81 |
| 2021-03-31 | $955k | 340k | 2.81 |
| 2020-12-31 | $1.5M | 360k | 4.12 |
| 2020-09-30 | $1.2M | 365k | 3.18 |
| 2020-06-30 | $1.0M | 308k | 3.38 |
| 2020-03-31 | $849k | 302k | 2.81 |
| 2019-12-31 | $1.3M | 308k | 4.25 |
| 2019-09-30 | $1.1M | 292k | 3.90 |
| 2019-06-30 | $1.3M | 294k | 4.50 |
| 2019-03-31 | $1.6M | 293k | 5.55 |
| 2018-12-31 | $1.5M | 307k | 5.00 |
| 2018-09-30 | $1.6M | 307k | 5.23 |
| 2018-06-30 | $2.0M | 323k | 6.35 |
| 2018-03-31 | $2.4M | 323k | 7.44 |
| 2017-12-31 | $5.4M | 448k | 12.04 |
| 2016-09-30 | $1.6M | 465k | 3.52 |
| 2016-06-30 | $1.1M | 465k | 2.35 |
| 2016-03-31 | $1.3M | 477k | 2.62 |
| 2015-12-31 | $1.2M | 479k | 2.52 |
| 2015-09-30 | $1.1M | 487k | 2.33 |
| 2015-06-30 | $1.7M | 491k | 3.42 |
| 2015-03-31 | $1.8M | 491k | 3.70 |
| 2014-12-31 | $1.8M | 524k | 3.38 |
| 2014-09-30 | $1.8M | 535k | 3.29 |
| 2014-06-30 | $1.6M | 534k | 3.01 |
| 2014-03-31 | $1.4M | 537k | 2.57 |
| 2013-12-31 | $1.4M | 537k | 2.57 |
| 2012-06-30 | $1.7M | 604k | 2.85 |
| 2012-03-31 | $2.4M | 607k | 3.92 |
| 2011-12-31 | $2.3M | 610k | 3.84 |