Wendell P. Weeks - 02 Jan 2026 Form 4 Insider Report for CORNING INC /NY (GLW)

Role: Chairman, CEO and President, Director
Signature: Melissa J. Gambol, Power of Attorney
Issuer symbol: GLW
Transactions as of: 02 Jan 2026
Net transactions value: -$298,032
Form type: 4
Filing time: 06 Jan 2026, 16:07:46 UTC
Previous filing: 09 Dec 2025
Next filing: 06 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
WEEKS WENDELL P	Chairman, CEO and President, Director	ONE RIVERFRONT PLAZA, CORNING	Melissa J. Gambol, Power of Attorney	06 Jan 2026	0001206158

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GLW	Common Stock	Options Exercise	$0	+3,287	+0.44%	$0.000000	751,066	02 Jan 2026	Direct
transaction	GLW	Common Stock	Tax liability	$298,032	-3,287	-0.44%	$90.67	747,779	02 Jan 2026	Direct
holding	GLW	Common Stock						9,200	02 Jan 2026	Held by Spouse	F1
holding	GLW	Common Stock						7,121	02 Jan 2026	Held By Spouse - Emp. Ben. Plan	F1, F2
holding	GLW	Common Stock						11,738	02 Jan 2026	Trustee U/employee Benefit Plan	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GLW	Restricted Stock Unit	Options Exercise	$0	-3,287	-3.7%	$0.000000	86,634	02 Jan 2026	Common Stock	3,287		Direct	F3, F6
holding	GLW	Restricted Stock Unit						111,863	02 Jan 2026	Common Stock	111,863		Direct	F3, F4
holding	GLW	Restricted Stock Unit						104,474	02 Jan 2026	Common Stock	104,474		Direct	F3, F5

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The reporting person disclaims beneficial ownership of all securities held by spouse.
F2	Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of December 31, 2025.
F3	Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.
F4	The restricted stock units (RSUs) vest 100% on April 15, 2027. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date.
F5	The restricted stock units (RSUs) vest 100% on April 15, 2026. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date.
F6	The restricted stock units (RSUs) vest 100% on April 14, 2028. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date.