X0508 4 2025-08-08 0000024741 CORNING INC /NY GLW 0001323968 Musser Eric S ONE RIVERFRONT PLAZA CORNING NY 14831 1 President 0 Common Stock 2025-08-08 4 M 0 3147 0 A 166277 D Common Stock 2025-08-08 4 F 0 1607 65.77 D 164670 D Common Stock 2025-08-11 4 M 0 18850 19.65 A 183520 D Common Stock 2025-08-11 4 S 0 18850 65.3148 D 164670 D Performance Share Unit Common Stock 45305 45305 D Performance Share Unit Common Stock 37864 37864 D Performance Share Unit 2025-08-08 4 M 0 3147 0 D Common Stock 3147 3147 D Stock Options (Right to Buy) 19.65 2025-08-11 4 M 0 18850 0 D 2030-05-15 Common Stock 18850 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.31 to $65.35, inclusive. The reporting person undertakes to provide to Corning Incorporated, any security holder of Corning Incorporated, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth previously in this footnote. Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock. Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement. Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement. The performance share units (PSUs) earned February 7, 2024 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. On December 2, 2020, the Compensation Committee approved the early vesting of one half of the stock options granted on May 15, 2020. The remaining stock options vested ratably over three years from the grand date. Melissa J. Gambol, Power of Attorney 2025-08-12