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: Musser Eric S (President and COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-15	Common Stock	M	56390	—	Acquired	211346	Direct
2025-04-15	Common Stock	M	37518	—	Acquired	248864	Direct
2025-04-15	Common Stock	F	45734	$41.78	Disposed	203130	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-15	Performance Share Unit	$	M	56390	Disposed		Common Stock (56390)	Direct
2025-04-15	Restricted Stock Unit	$	M	37518	Disposed		Common Stock (37518)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Performance Share Unit	$		Common Stock (6294)	6294	Direct
Performance Share Unit	$		Common Stock (45305)	45305	Direct
Performance Share Unit	$		Common Stock (37864)	37864	Direct
Restricted Stock Unit	$		Common Stock (38983)	38983	Direct
Restricted Stock Unit	$		Common Stock (41835)	41835	Direct
Restricted Stock Unit	$		Common Stock (32938)	32938	Direct

Footnotes

F1: Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock.

F2: The performance share units (PSUs) earned February 7, 2024 will vest 1/3 after 1 year from the February 8, 2023 grant date and 1/6 every 6 months thereafter until fully vested on the third anniversary of the grant date.

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) 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.

F7: 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.

F8: 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.

F9: The performance share units (PSUs) vested 100% on April 15, 2025.

F10: The restricted stock units (RSUs) vested 100% on April 15, 2025.