Corning (GLW)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-06-30 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CORNING INC /NY (GLW) CIK: 0000024741 --- Reporting Owner --- Name: Martin Kevin J CIK: 0001567046 Role: Director --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Unit Date: 2026-06-30 | Code: A (Grant or award) Shares: +137 | Price: $255.43 Shares Owned After: 20,234 | Ownership: D (Direct) Footnotes: [F4] Represents restricted stock units (RSUs) granted under the Non-Employee Directors' Deferred Compensation Plan. Each RSU represents a contingent right to receive one share of Corning Incorporated common stock. [F5] Conversion of restricted stock units to the Company's common stock and distribution of such stock under the Non-Employee Directors' Deferred Compensation Plan is deferred until a specific date as elected by the participant or termination of service as a Corning director. [F5] Conversion of restricted stock units to the Company's common stock and distribution of such stock under the Non-Employee Directors' Deferred Compensation Plan is deferred until a specific date as elected by the participant or termination of service as a Corning director. --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) [Holding #2] Security: Restricted Stock Unit Ownership: D (Direct) Footnotes: [F1] Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock. [F2] Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director. [F2] Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director. [Holding #3] Security: Restricted Stock Unit Ownership: D (Direct) Footnotes: [F1] Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock. [F2] Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director. [F2] Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director. [Holding #4] Security: Restricted Stock Unit Ownership: D (Direct) Footnotes: [F3] Represents annual equity retainer in the form of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Corning Incorporated common stock. [F2] Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director. [F2] Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director. --- Footnotes (Complete Index) --- F1: Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock. F2: Conversion of restricted stock units to the Company's common stock and distribution of such stock is deferred until a specific date as elected by the participant or termination of service as a Corning director. F3: Represents annual equity retainer in the form of restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Corning Incorporated common stock. F4: Represents restricted stock units (RSUs) granted under the Non-Employee Directors' Deferred Compensation Plan. Each RSU represents a contingent right to receive one share of Corning Incorporated common stock. F5: Conversion of restricted stock units to the Company's common stock and distribution of such stock under the Non-Employee Directors' Deferred Compensation Plan is deferred until a specific date as elected by the participant or termination of service as a Corning director. --- Signature --- /s/ Melissa J. Gambol, Power of Attorney (2026-07-01)