CORNING INC /NY — Director's Dealing 2026

Feb 27, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CORNING INC /NY (GLW)
CIK: 0000024741
Period of Report: 2026-02-26

Reporting Person: WEEKS WENDELL P (Director, Chairman, CEO and President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-26	Common Stock	M	137514	$27.00	Acquired	888099	Direct
2026-02-26	Common Stock	S	137514	$155.3721	Disposed	750585	Direct
2026-02-26	Common Stock	G	16694	—	Disposed	733891	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-26	Stock Options (Right to Buy)	$27.00	M	137514	Disposed	2027-03-31	Common Stock (137514)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	9200	Indirect
Common Stock	7120.5432	Indirect
Common Stock	11737.587	Indirect

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $154.45 to $157.17, 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 January 31, 2026.

F4: The options vested 100% at the end of three years from grant date.