X0508 4 2026-02-04 0000024741 CORNING INC /NY GLW 0001206158 WEEKS WENDELL P ONE RIVERFRONT PLAZA CORNING NY 14831 1 1 Chairman, CEO and President 0 Common Stock 2026-02-04 4 M 0 5410 0 A 747779 D Common Stock 2026-02-04 4 M 0 2209 0 A 749988 D Common Stock 2026-02-04 4 M 0 2854 0 A 752842 D Common Stock 2026-02-04 4 F 0 10473 109.69 D 742369 D Common Stock 9200 I Held by Spouse Common Stock 7120.5432 I Held By Spouse - Emp. Ben. Plan Common Stock 11737.587 I Trustee U/employee Benefit Plan Performance Share Unit Common Stock 5733 5733 D Performance Share Unit 2026-02-04 4 A 0 120365 0 A Common Stock 120365 241020 D Performance Share Unit 2026-02-04 4 A 0 80500 0 A Common Stock 80500 181340 D Performance Share Unit 2026-02-04 4 A 0 62315 0 A Common Stock 62315 62315 D Performance Share Unit 2026-02-04 4 M 0 5410 0 D Common Stock 5410 235610 D Performance Share Unit 2026-02-04 4 M 0 2209 0 D Common Stock 2209 60106 D Performance Share Unit 2026-02-04 4 M 0 2854 0 D Common Stock 2854 178486 D Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock. The reporting person disclaims beneficial ownership of all securities held by spouse. Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of January 31, 2026. 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. Performance share units (PSUs) were earned February 4, 2026 per Compensation Committee decision that performance criteria were satisfied for fiscal year 2025 pursuant to the 2023 agreement. Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement. Performance share units (PSUs) were earned February 4, 2026 per Compensation Committee decision that performance criteria were satisfied for fiscal year 2025 pursuant to the 2024 agreement. Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement. Performance share units (PSUs) were earned February 4, 2026 per Compensation Committee decision that performance criteria were satisfied for fiscal year 2025 pursuant to the 2025 agreement. Earned PSUs remain restricted until April 14, 2028, when they vest and convert to common stock, subject to service-based vesting requirement. Vesting to satisfy tax requirement pursuant to the 2023 agreement. Vesting to satisfy tax requirements pursuant to the 2025 agreement. Vesting to satisfy tax requirement pursuant to the 2024 agreement. Melissa J. Gambol, Power of Attorney 2026-02-06