Avery H. Nelson III - 02 Jan 2026 Form 4 Insider Report for CORNING INC /NY (GLW)

Role: Executive Vice President & COO
Signature: Melissa J. Gambol, Power of Attorney
Issuer symbol: GLW
Transactions as of: 02 Jan 2026
Net transactions value: -$91,123
Form type: 4
Filing time: 06 Jan 2026, 16:01:17 UTC
Previous filing: 12 Aug 2025
Next filing: 06 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Nelson Avery H III	Executive Vice President & COO	ONE RIVERFRONT PLAZA, CORNING	Melissa J. Gambol, Power of Attorney	06 Jan 2026	0001824828

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GLW	Common Stock	Options Exercise	$0	+1,005	+1.5%	$0.000000	67,055	02 Jan 2026	Direct
transaction	GLW	Common Stock	Tax liability	$91,123	-1,005	-1.5%	$90.67	66,050	02 Jan 2026	Direct
holding	GLW	Common Stock						3,840	02 Jan 2026	Trustee u/Employee Benefit Plan	F1

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	-1,005	-4.1%	$0.000000	23,369	02 Jan 2026	Common Stock	1,005		Direct	F2, F6
holding	GLW	Restricted Stock Unit						2,476	02 Jan 2026	Common Stock	2,476		Direct	F2, F3
holding	GLW	Restricted Stock Unit						21,442	02 Jan 2026	Common Stock	21,442		Direct	F2, F4
holding	GLW	Restricted Stock Unit						17,838	02 Jan 2026	Common Stock	17,838		Direct	F2, F5

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

Explanation of Responses:

Id	Content
F1	Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of December 31, 2025.
F2	Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.
F3	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.
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.