Other3

DATA I/O CORP

Total Value

$NaN

Filing Date

Oct 27, 2026

1 transactions

Trade Summary

On Oct 20, 2026, Red Oak Partners, LLC, 10% Owner, reported $NaN of DATA I/O CORP (DAIO) across 1 transactions. The filing covers company securities and reflects balanced net activity of $NaN. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Red Oak Partners, LLC
Role: 10% Owner
Location: BOCA RATON, FL

Filing Details

Filing Date: Oct 27, 2026
Transaction Date: Oct 20, 2026
Accession Number: 0001325533-26-000011
Form Type: 3

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Footnotes

(F1)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.
(F2)ROP serves as the general partner of The Red Oak Long Fund, LP, a Delaware limited partnership (the "Long Fund"), the direct owner of the subject securities. David Sandberg is the managing member of ROP and the Long Fund's portfolio manager.
(F3)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.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Red Oak Partners, LLC

(Last)

(First)

(Middle)

40 SE 5TH STREET

SUITE 502

(Street)

BOCA RATON

33432

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/20/2026

3. Issuer Name and Ticker or Trading Symbol
DATA I/O CORP [ DAIO ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

Director	X	10% Owner
Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	0	I	By The Red Oak Fund, LP directly⁽¹⁾⁽³⁾
Common Stock	0	I	By The Red Oak Long Fund, LP directly⁽²⁾⁽³⁾

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)

1. Name and Address of Reporting Person^*

Red Oak Partners, LLC

(Last)

(First)

(Middle)

40 SE 5TH STREET

SUITE 502

(Street)

BOCA RATON

33432

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Red Oak Fund, LP

(Last)

(First)

(Middle)

40 SE 5TH STREET

SUITE 502

(Street)

BOCA RATON

33432

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Red Oak Long Fund, LP

(Last)

(First)

(Middle)

40 SE 5TH STREET

SUITE 502

(Street)

BOCA RATON

33432

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Sandberg David

(Last)

(First)

(Middle)

40 SE 5TH STREET

SUITE 502

(Street)

BOCA RATON

33432

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

Explanation of Responses:

1. 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.

2. ROP serves as the general partner of The Red Oak Long Fund, LP, a Delaware limited partnership (the "Long Fund"), the direct owner of the subject securities. David Sandberg is the managing member of ROP and the Long Fund's portfolio manager.

3. 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.

	David Sandberg	10/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 3 as rendered by the SEC from accession 0001325533-26-000011.

DATA I/O CORP

Trade Summary

Company Information

Insider Information

Filing Details

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Footnotes

SEC Form 3

SEC Filing

SEC Form 3