X0508 4 2026-01-22 0 0001463101 Enphase Energy, Inc. ENPH 0002022111 Erginsoy Mary 47281 BAYSIDE PARKWAY FREMONT CA 94538 0 1 0 0 VP, Chief Accounting Officer 0 Common Stock 2026-01-22 4 A 0 10560 0 A 28619 D Common Stock 9669 I By Trust Represents shares earned as a result of the achievement of certain performance criteria, pursuant to a performance-based stock unit award originally granted on January 14, 2025 under the Issuer's2021 Equity Incentive Plan, and certified by the Issuer's Compensation Committee of the Board of Directors on January 22, 2026. The shares are scheduled to vest on March 1, 2026, subject to Ms. Erginsoy's continuous service through such date. Balance includes a non-reportable acquisition of 420 shares purchased through the Company's 2011 Employee Stock Purchase Plan on May 15, 2025 Shares are held in the Erginsoy Family Trust, in which the Reporting Person is a trustee. Lisan Hung, Attorney-in-Fact for Mary Erginsoy 2026-01-23