CORNING INC /NY — Director's Dealing 2025

Apr 17, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CORNING INC /NY (GLW)
CIK: 0000024741
Period of Report: 2025-04-15

Reporting Person: Nelson Avery H III (SVP&GM Auto., Life Sc. & Solar)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-15	Common Stock	M	20742	—	Acquired	82873	Direct
2025-04-15	Common Stock	M	13777	—	Acquired	96650	Direct
2025-04-15	Common Stock	F	16812	$41.78	Disposed	79838	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-15	Performance Share Unit	$	M	20742	Disposed		Common Stock (20742)	Direct
2025-04-15	Restricted Stock Unit	$	M	13777	Disposed		Common Stock (13777)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3794.2947	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Performance Share Unit	$		Common Stock (20983)	20983	Direct
Performance Share Unit	$		Common Stock (19530)	19530	Direct
Restricted Stock Unit	$		Common Stock (4952)	4952	Direct
Restricted Stock Unit	$		Common Stock (17838)	17838	Direct
Restricted Stock Unit	$		Common Stock (21442)	21442	Direct
Restricted Stock Unit	$		Common Stock (24374)	24374	Direct

Footnotes

F1: Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of March 31, 2025.

F2: Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock.

F3: Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement.

F4: Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement.

F5: Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.

F6: The restricted stock units (RSUs) granted on February 8, 2023 vest 1/3 after 1 year from the grant date and 1/6 every 6 months thereafter until fully vested on the third anniversary of the grant date.

F7: 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.

F8: 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.

F9: 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.

F10: The performance share units (PSUs) vested 100% on April 15, 2025.

F11: The restricted stock units (RSUs) vested 100% on April 15, 2025.