Ask OQRO is part of OQRO Pro. Everything else on OQRO is free.
Cookies
Only to see which pages are hard to use, so we can fix them. Nothing is used for ads, and what you type stays hidden (Microsoft Clarity, PostHog). Privacy Policy
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell.
View the official recordSEC Form 4 — Statement of Changes in Beneficial OwnershipAll the details
Dates, kept separate
Transaction date
Oct 20, 2026
Reporting period
Not applicable
Filed with the SEC
Oct 27, 2026
10% ownerIndirect holdingOther
Context
Classification
other
Code P in the derivative table; not an open-market share purchase
Planned / mechanical clue
None found in footnotes
Only flagged when a footnote says so; never inferred
Source receipt
Record ID
0001325533-26-000012
Filed / recorded
Oct 27, 2026, 9:32 PM UTC
Added to OQRO
Oct 27, 2026, 9:32 PM UTC
Parser
form4-xml-v2
Data quality
Read from the record; company matched by name
Issuer
DATA I/O CORP
Issuer CIK
351998
Ticker
DAIO
Reporting person
Red Oak Partners, LLC
Relationship
10% owner
Security
5% Convertible Debenture
Table
Derivative (Table II)
Transaction date
Oct 20, 2026
Transaction code
P
Shares / units
Not reported in the filing
Acquired / disposed
Acquired (A)
Shares owned after
—
Ownership form
Indirect — By The Red Oak Fund, LP directly
Amendment
No
Footnotes from the filing
The reporting persons purchased the 5% Convertible Debenture at 100% of its principal amount in a private placement pursuant to aa agreement dated October 20, 2026
Immediately exercisable.
Red Oak Partners, LLC ("ROP") serves as the general partner of The Red Oak Fund, LP, a Delaware limited partnership (the "Fund"), the direct owner of the subject securities. David Sandberg is the managing member of ROP and the Fund's portfolio manager.
Each Reporting Person disclaims beneficial ownership of all securities reported herein, except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities and Exchange Act of 1934 or for any other purpose.
A Schedule 13G is filed by holders above 5% who say they will not try to influence the company. Index funds and large asset managers file most of them.
Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.
