X0508 4 2026-01-22 0 0001463101 Enphase Energy, Inc. ENPH 0001645551 Yang Mandy C/O ENPHASE ENERGY, INC. 47281 BAYSIDE PARKWAY FREMONT CA 94538 0 1 0 0 EVP, Chief Financial Officer 0 Common Stock 2026-01-22 4 A 0 21120 0 A 90107 D Common Stock 25000 I By GRAT 1 Common Stock 25000 I By GRAT 2 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's 2021 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. Yang's continuous service through such date. Represents shares previously owned directly by the reporting person that were contributed to grantor retained annuity trust ("GRAT 1"). Represents shares previously owned directly by the reporting person that were contributed to grantor retained annuity trust ("GRAT 2"). /s/ Lisan Hung, Attorney-in-Fact for Mandy Yang 2026-01-23