Corning (GLW)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-09 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CORNING INC /NY (GLW) CIK: 0000024741 --- Reporting Owner --- Name: WEEKS WENDELL P CIK: 0001206158 Role: Director, Officer (Chairman, CEO and President) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-09 | Code: M (Exercise of derivative) Shares: +100,000 | Price: $27.03 Total Value: $2,703,000.00 Shares Owned After: 1,008,353 | Ownership: D (Direct) [Transaction #2] Security: Common Stock Date: 2026-06-09 | Code: S (Open market sale) Shares: -100,000 | Price: $186.46 Total Value: $18,646,070.00 Shares Owned After: 908,353 | Ownership: D (Direct) Footnotes: [F1] The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.83 to $190.005, 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. --- Derivative Transactions --- [Transaction #1] Security: Stock Options (Right to Buy) Date: 2026-06-09 | Code: M (Exercise of derivative) Shares: -100,000 | Price: $0.00 Exercisable: N/A | Expires: 2028-04-02 Shares Owned After: 49,849 | Ownership: D (Direct) Footnotes: [F4] The options vested 100% at the end of three years from grant date. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) Footnotes: [F2] The reporting person disclaims beneficial ownership of all securities held by spouse. [Holding #2] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of May 29, 2026. [F2] The reporting person disclaims beneficial ownership of all securities held by spouse. [Holding #3] Security: Common Stock Ownership: I (Indirect) Footnotes: [F3] Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of May 29, 2026. --- Footnotes (Complete Index) --- F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.83 to $190.005, 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. F2: The reporting person disclaims beneficial ownership of all securities held by spouse. F3: Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of May 29, 2026. F4: The options vested 100% at the end of three years from grant date. --- Signature --- /s/ Melissa J. Gambol, Power of Attorney (2026-06-09)