X0202 SCHEDULE 13D/A 0000944075-25-000049 0002073198 XXXXXXXX LIVE 2 Common Stock, $0.001 par value per share 08/10/2026 false 0000944075 83368E200 SOCKET MOBILE, INC.

40675 ENCYCLOPEDIA CIRCLE FREMONT CA 94538-2475

Enrico Kevin Mills 85230018846 Room 1601, 16/F Wing On Centre 111 Connaught Road Central Central K3 - 0002073198 N Mills Enrico Kevin PF N V8 426304.00 0.00 426304.00 0.00 426304.00 N 4.9 IN Consists of 10 shares held directly and 426,294 shares issuable upon conversion of the 2024 Note and the 2025 Note, as described in Item 5(a). Common Stock, $0.001 par value per share SOCKET MOBILE, INC. 40675 ENCYCLOPEDIA CIRCLE FREMONT CA 94538-2475 This Amendment No. 2 amends and supplements the Schedule 13D filed June 12, 2025, as amended by Amendment No. 1 filed August 6, 2026 (as so amended, the 'Original Schedule 13D'). Capitalized terms used but not defined herein have the meanings given in the Original Schedule 13D. Except as set forth herein, the disclosure in the Original Schedule 13D is unchanged. On August 10, 2026, the Reporting Person sold in open market transactions all shares of Common Stock previously reported as held directly and in custodial accounts, as described in Item 5(c), and subsequently purchased 10 shares of Common Stock. The Reporting Person continues to hold the 2024 Note and the 2025 Note, which remain subject to the redemption request delivered August 6, 2026 and remain convertible until repayment. Upon repayment of the Notes, the Reporting Person's beneficial ownership will consist of 10 shares of Common Stock. The Reporting Person is the beneficial owner of 426,304 shares of Common Stock, consisting of (i) 10 shares of Common Stock held directly, (ii) up to 262,743 shares of Common Stock issuable upon conversion of the 2024 Note, and (iii) up to 163,551 shares of Common Stock issuable upon conversion of the 2025 Note. Such shares represent approximately 4.9% of the 8,667,252 shares of Common Stock deemed outstanding pursuant to Rule 13d-3(d)(1), based on 8,240,958 shares of Common Stock outstanding as of May 8, 2026, as reported on the cover page of the Issuer's Quarterly Report on Form 10-Q for the quarter ended March 31, 2026, plus the 426,294 shares issuable upon conversion of the Notes. On August 10, 2026, the Reporting Person sold an aggregate of 316,199 shares of Common Stock (265,784 held directly and 50,415 held in custodial accounts) in open market transactions at a weighted average price of $2.09 per share (prices ranging from $1.80 to $2.30). On August 10, 2026, the Reporting Person purchased 10 shares of Common Stock in an open market transaction at $1.69 per share. The forfeiture disclosed in Amendment No. 1 is incorporated by reference. On August 10, 2026, the Reporting Person ceased to be the beneficial owner of more than five percent of the Common Stock. Mills Enrico Kevin /s/ Enrico Kevin Mills 08/10/2026