Data I/O Corp (DAIO) Institutional Ownership

Ownership Summary

Data I/O Corp (NASDAQ:DAIO) has 27 institutional investors with active 13F positions as of December 2025.

• They owned 34.3% of outstanding stock in December 2025, up from 34.0% the prior quarter.
• They increased total shares held in Data I by 4.96% from the prior quarter, while the number of investors in DAIO decreased 6.9% year over year.
• Activity in DAIO broke down as 10 buyers, 8 sellers, and 9 unchanged among 27 total holders.
• Institutional investors collectively held 3.22Mn shares in Data I as of December 2025, up by 152.22K shares quarter on quarter, and up 101.91K shares year over year.
• As of December 31, 2025, Kanen Wealth Management LLC held the largest stake in Data I with 839.42K shares, accounting for 8.94% of total shares outstanding.
• The biggest buyers of Data I for the quarter ending December 2025 included Kovack Advisors, Inc. (274.58K), DRW Securities, LLC (11.73K), Steward Partners Investment Advisory, LLC (8.56K), Penbrook Management LLC (4.1K), GEODE CAPITAL MANAGEMENT, LLC (2.97K).
• Top sellers of DAIO stock for the quarter ending December 2025 included DIMENSIONAL FUND ADVISORS LP (80.88K), RENAISSANCE TECHNOLOGIES LLC (39.2K), CITADEL ADVISORS LLC (8.69K), VANGUARD GROUP INC (8.08K), ACADIAN ASSET MANAGEMENT LLC (8.0K).
• Per Business Quant, the top 10 investors in DAIO for the quarter ending December 2025 include Kanen Wealth Management LLC (839.42K), Kovack Advisors, Inc. (537.81K), RENAISSANCE TECHNOLOGIES LLC (437.64K), Penbrook Management LLC (356.85K), VANGUARD GROUP INC (350.37K), DIMENSIONAL FUND ADVISORS LP (180.25K), ACADIAN ASSET MANAGEMENT LLC (125.22K), GEODE CAPITAL MANAGEMENT, LLC (104.58K), ESSEX INVESTMENT MANAGEMENT CO LLC (74.64K), Steward Partners Investment Advisory, LLC (43.47K).