GLW Form 4: CFO option exercise at $33.92, sale at $91.25

Rhea-AI Filing Summary

Corning (GLW) disclosed insider activity by its Executive Vice President and CFO. On 10/31/2025, the officer exercised 8,844 stock options at $33.92 per share (code M), acquiring the same number of common shares. The filing also reports a sale of 20,893 shares at $91.25 per share (code S). Following these transactions, the officer directly owns 66,959 shares.

The exercised options were granted on 04/01/2022 and expire on 04/01/2029; they vested 100% at the end of three years from the grant date.

Insider Trade Summary

Net Seller: 20,893 shares ($1,906,486)

Net Sell 3 txns

Insider Schlesinger Edward A

Role Exec. Vice President and CFO

Sold 20,893 shs ($1.91M)

Type	Security	Shares	Price	Value
Exercise	Stock Options (Right to Buy)	8,844	$0.00	--
Exercise	Common Stock	8,844	$33.92	$300K
Sale	Common Stock	20,893	$91.25	$1.91M

Holdings After Transaction: Stock Options (Right to Buy) — 0 shares (Direct); Common Stock — 87,852 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Schlesinger Edward A

(Last) (First) (Middle)

ONE RIVERFRONT PLAZA

(Street)

CORNING NY 14831

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
CORNING INC /NY [ GLW ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Exec. Vice President and CFO

3. Date of Earliest Transaction (Month/Day/Year)
10/31/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/31/2025		M		8,844	A	$33.92	87,852	D
Common Stock	10/31/2025		S		20,893	D	$91.25	66,959	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Options (Right to Buy)	$33.92	10/31/2025		M			8,844	04/01/2022(1)	04/01/2029	Common Stock	8,844	$0	0	D

Explanation of Responses:

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

	Melissa J. Gambol, Power of Attorney	11/03/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did GLW report?

On 10/31/2025, the CFO exercised 8,844 options at $33.92 and sold 20,893 shares at $91.25.

How many Corning (GLW) shares does the CFO own after the transactions?

The officer directly owns 66,959 shares following the reported transactions.

What were the prices involved in the GLW CFO’s transactions?

Option exercise price was $33.92 per share; sale price was $91.25 per share.

What derivative security was involved in the GLW Form 4?

A stock option (right to buy) for 8,844 shares, granted 04/01/2022 and expiring 04/01/2029.

What is the GLW reporting person’s role?

The reporting person is Corning’s Executive Vice President and CFO.

When did the options in the GLW filing vest?

They vested 100% at the end of three years from the grant date.