X0609 4/A 2025-08-17 2025-08-19 0 0000817720 SYNAPTICS Inc SYNA 0002014632 Song Esther false 1109 MCKAY DRIVE SAN JOSE CA 95131 0 1 0 0 See Remarks 0 Common Stock 21591 D This amendment corrects the Amount of Securities Beneficially Owned as shown on the Form 4 filed by the reporting person on August 19, 2025 and subsequent filings to remove 776 performance stock units that were inadvertently included due to an administrative error. The performance stock units were not earned because the applicable performance goals were not achieved. The reporting person is Vice President and Corporate Controller. /s/ Pamela Fields, as attorney-in-fact 2026-08-19