Red Oak Partners, LLC (Sandberg David) purchased $1,000K of DAIO (indirect holdings)
Red Oak Partners, LLC purchased 373,133 indirectly-held shares of DATA I/O CORP (DAIO) at $2.68 ($1.00M total) across 2 trades on 2026-10-20. Filed jointly with Red Oak Fund, LP (10% owner), Red Oak Long Fund, LP (10% owner) and Sandberg David (10% owner).
How this was made
The 30-second read
Why it matters
The insider purchase may be viewed positively by investors, but the modest size limits its market impact.
Market read
Primary insider purchase filing with limited material impact; relevance mainly to DAIO shareholders.
What to watch
The transaction size is under $1 M and may not move the market for a low‑float micro‑cap.
Background
Form 4 filings provide the first public disclosure of insider transactions. Red Oak Partners, a 10% owner, increased its holding in Data I/O Corp.
Ticker impact
Red Oak Partners, LLC disclosed a $1M open‑market purchase of 373,133 shares of Data I/O Corp, increasing its stake to 130,199 shares.
modest upside as the market prices in the insider purchase
The purchase is a primary Form 4 filing, but the amount is modest for a micro‑cap; the signal is positive but limited in scale.
Market effects
Minimal; the filing does not materially affect the broader technology sector.
None; the news is company‑specific.
Low; limited to Data I/O Corp investors.
Counterpoint
The purchase could be a routine portfolio rebalancing rather than a strong endorsement.
Key entities
- companyData I/O Corp
US‑listed semiconductor test equipment provider (NASDAQ: DAIO).
- investment_firmRed Oak Partners, LLC
Private investment firm and 10% owner of Data I/O Corp.