William O. Wentworth

Companies

• Data I/OPresident Sep 4, 2024 to now¹
• Data I/OBoard member May 19, 2023 to now²

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Data I/O DAIO53,972 shares³$136.2K at $2.52Dec 3, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Dec 3, 2025Granted 1,100 shares at $2.80 of Data I/O³
• Dec 2, 2025Granted 7,455 shares at $2.78 of Data I/O⁴
• May 6, 2025Bought 10,332 shares at $2.42 of Data I/O⁵
• May 2, 2025Granted 10,585 shares at $2.36 of Data I/O⁶
• May 1, 2025Bought 10,585 shares at $2.36 of Data I/O⁷
• May 16, 2024Granted 14,100 shares at $2.93 of Data I/O⁸
• May 18, 2023Granted 10,400 shares at $4.45 of Data I/O⁹