X0508 4 2024-04-01 0000024741 CORNING INC /NY GLW 0001658538 Schlesinger Edward A ONE RIVERFRONT PLAZA CORNING NY 14831 1 Exec. Vice President and CFO 0 Common Stock 69073 D Performance Share Unit Common Stock 5660 5660 D Restricted Stock Unit Common Stock 925 925 D Restricted Stock Unit Common Stock 5856 5856 D Restricted Stock Unit Common Stock 15614 15614 D Restricted Stock Unit Common Stock 19088 19088 D Restricted Stock Unit 2024-04-01 4 A 0 22957 0 A Common Stock 22957 22957 D Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock. Performance share units (PSUs) were earned February 7, 2024 per Compensation Committee decision that performance criteria were satisfied for fiscal year 2023 pursuant to the 2023 agreement. Earned PSUs remain restricted until vesting. The earned units will vest 1/3 after 1 year from the February 8, 2023 grant date and 1/6 every 6 months thereafter until fully vested on the third anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock. The restricted stock units (RSUs) granted on February 8, 2023 will vest 2/3 after 1 year and 1/3 after 18 months from the grant date. The restricted stock units (RSUs) vest 100% on April 15, 2024. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date. The restricted stock units (RSUs) vest 100% on April 15, 2025. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date. The restricted stock units (RSUs) vest 100% on April 15, 2026. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date. The restricted stock units (RSUs) vest 100% on April 15, 2027. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date. Linda E. Jolly, Power of Attorney 2024-04-03