X0202 SCHEDULE 13G 0001105806 XXXXXXXX LIVE Common Stock 06/17/2026 0000351998 DATA I/O CORP 237690102 6645 185TH AVE NE, SUITE 100 REDMOND WA 98052 Rule 13d-1(c) LYTTON LAURENCE W X1 145540.00 880884.00 145540.00 880884.00 1026424.00 N 9.9 IN The shares of the Common Stock reported herein consist of (a) 1,016,163 shares of Common Stock, (b) warrants to purchase 1,080,000 shares of Common Stock and (c) 6,825 shares of Common Stock issuable on conversion of convertible notes beneficially owned by the reporting person. The warrants and convertible notes are each subject to a 9.99% beneficial ownership limitation. Percentage calculated based on 9,394,422 shares of Common Stock outstanding as of April 30, 2026, as reported in the Form 10-Q filed by the Issuer for the quarter ended March 31, 2026, and 1,016,163 shares issued by the Issuer in a private placement to the reporting persons. Lytton-Kambara Foundation X1 0.00 590374.00 0.00 590374.00 590374.00 N 5.8 IN The shares of the Common Stock reported herein consist of (a) 580,676 shares of Common Stock, (b) warrants to purchase 720,000 shares of Common Stock and (c) 4,550 shares of Common Stock issuable on conversion of convertible notes beneficially owned by the reporting person. The warrants and convertible notes are each subject to a 9.99% beneficial ownership limitation. Percentage calculated based on 9,394,422 shares of Common Stock outstanding as of April 30, 2026, as reported in the Form 10-Q filed by the Issuer for the quarter ended March 31, 2026, and 1,016,163 shares issued by the Issuer in a private placement to the reporting persons. AWL Family LLC X1 0.00 300208.00 0.00 300208.00 300208.00 N 2.9 IN The shares of the Common Stock reported herein consist of (a) 289,947 shares of Common Stock, (b) warrants to purchase 360,000 shares of Common Stock and (c) 2,275 shares of Common Stock issuable on conversion of convertible notes beneficially owned by the reporting person. The warrants and convertible notes are each subject to a 9.99% beneficial ownership limitation. Percentage calculated based on 9,394,422 shares of Common Stock outstanding as of April 30, 2026, as reported in the Form 10-Q filed by the Issuer for the quarter ended March 31, 2026, and 1,016,163 shares issued by the Issuer in a private placement to the reporting persons. DATA I/O CORP 6645 185th Ave NE, Suite 100, Redmond, Washington 98052 Laurence W. Lytton Lytton-Kambara Foundation ("Foundation") AWL Family LLC ("AWL") 467 Central Park West New York, NY 10025 USA Y Lytton: 1,026,424 Foundation: 590,374 AWL: 300,208 Lytton: 9.9% Foundation: 5.8% AWL: 2.9% Lytton: 145,540 Foundation: 0 AWL: 0 Lytton: 880,884 Foundation: 590,374 AWL: 300,208 Lytton: 145,540 Foundation: 0 AWL: 0 Lytton: 880,884 Foundation: 590,374 AWL: 300,208 Y Y Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. LYTTON LAURENCE W /s/ Laurence W Lytton 06/23/2026 Lytton-Kambara Foundation /s/ Laurence W. Lytton 06/23/2026 AWL Family LLC /s/ Laurence W. Lytton 06/23/2026 EXHIBIT 99.1 - AGREEMENT REGARDING JOINT FILING OF STATEMENT ON SCHEDULE 13D OR 13G