[Form 4] Corning Incorporated Insider Trading Activity

Rhea-AI Filing Summary

Mark S. Wrighton, an officer of Corning Incorporated (GLW), reported a non-derivative disposition of 4,467 shares of Corning common stock on 09/04/2025. Following the reported transaction the reporting person beneficially owned 61,621 shares. The Form 4 indicates the filing was made individually and lists Melissa J. Gambol as holding power of attorney on 09/08/2025.

Positive

• Transparent disclosure of insider transaction under Section 16
• Remaining beneficial ownership reported (61,621 shares) providing clarity on insider stake

Negative

• Disposition of 4,467 shares reduced the reporting person’s direct holdings

Insights

Financial Analyst

TL;DR: A small insider sale reduced holdings modestly; not likely material to Corning's overall capitalization.

The Form 4 documents a 4,467-share disposition by an officer, leaving 61,621 shares beneficially owned. The disclosure is routine and provides transparency about insider ownership changes. The absolute size of the sale is small relative to the company’s market capitalization, so the transaction itself is unlikely to have a material impact on GLW’s financial position or valuation.

Corporate Governance Expert

TL;DR: Timely Form 4 filing shows compliance with Section 16 reporting; the trade appears to be a standard insider disclosure.

The report identifies the reporting person as an officer and indicates a single non-derivative sale of 4,467 shares with resulting beneficial ownership of 61,621 shares. The form is filed individually and includes a power-of-attorney signature, consistent with standard insider reporting procedures. There is no additional information in the filing that suggests governance or compliance concerns.

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
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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^*

WRIGHTON MARK S

(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
	Officer (give title below)	X	Other (specify below)
			Retired Director

3. Date of Earliest Transaction (Month/Day/Year)
09/04/2025

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	09/04/2025		G		4,467	D	$0	61,621	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

Explanation of Responses:

	Melissa J. Gambol, Power of Attorney	09/08/2025
	** 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 transaction did GLW insider Mark S. Wrighton report?

The Form 4 reports a disposition of 4,467 shares of Corning common stock on 09/04/2025.

How many Corning (GLW) shares does the reporting person own after the sale?

After the reported transaction the reporting person beneficially owned 61,621 shares.

Was the Form 4 filed individually or jointly for GLW?

The form indicates it was filed by one reporting person (individual filing).

Who signed or executed the filing on behalf of the reporting person?

The filing lists Melissa J. Gambol as holding power of attorney and dated 09/08/2025.

What is the transaction code listed on the Form 4?

The Form 4 lists transaction code 'G' for the reported disposition.