[Form 4] Corning Incorporated Insider Trading Activity

Rhea-AI Filing Summary

Eric S. Musser, identified as President and a director of Corning Incorporated (ticker: GLW), reported the sale of 20,000 shares of Corning common stock on 09/04/2025 at a weighted-average price of $70.2312 per share. The filing states the sale occurred in multiple transactions at prices ranging from $70.06 to $70.345; the reporting person offers to provide a breakdown of shares sold at each price upon request. After the reported sale, the filing shows 144,670 shares beneficially owned by the reporting person. The Form 4 was filed by one reporting person and was signed by a power of attorney, Melissa J. Gambol, on 09/04/2025.

Insights

Financial Analyst

TL;DR: Officer sold 20,000 GLW shares at a weighted average of $70.2312, retaining 144,670 shares—transaction appears routine.

The Form 4 discloses a direct sale of 20,000 shares by Eric S. Musser, identified as President and a director. The sale price is a weighted average of multiple transactions between $70.06 and $70.345. The filing confirms continued substantial ownership of 144,670 shares after the sale. From an investor-materiality perspective, the filing reports factual insider activity but provides no context such as tax-related sales, trading plans, or company developments. The disclosure meets Section 16 reporting requirements but does not, by itself, convey a change in company fundamentals.

Corporate Governance Expert

TL;DR: Reported sale by a named officer/director complies with disclosure rules; ownership level remains material.

The Form 4 shows compliance with disclosure obligations: transaction date, nature (sale), number of shares, weighted-average price, and post-transaction beneficial ownership are all reported. The signature block indicates the filing was executed by a power of attorney. There is no indication in the filing of a Rule 10b5-1 plan or other characterization of the sale. The retained ownership of 144,670 shares is explicitly stated, which is relevant for assessing ongoing insider alignment with shareholders.

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^*

Musser Eric 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
X	Officer (give title below)		Other (specify below)
	President

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		S		20,000	D	$70.2312(1)	144,670	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:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $70.06 to $70.345, inclusive. The reporting person undertakes to provide to Corning Incorporated, any security holder of Corning Incorporated, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth previously in this footnote.

	Melissa J. Gambol, Power of Attorney	09/04/2025
	** 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 did Eric S. Musser (GLW) report on Form 4?

The Form 4 reports that Eric S. Musser sold 20,000 shares of Corning (GLW) on 09/04/2025 at a weighted-average price of $70.2312 and retains 144,670 shares.

What price range were the shares sold at in the GLW Form 4?

The filing states the shares were sold in multiple transactions at prices ranging from $70.06 to $70.345.

Who signed the Form 4 for Eric S. Musser?

The Form 4 was signed by Melissa J. Gambol as Power of Attorney on 09/04/2025.

Does the Form 4 indicate a trading plan (Rule 10b5-1)?

The Form 4 does not state that the sale was made pursuant to a Rule 10b5-1 trading plan.

How many reporting persons filed this Form 4?

The filing indicates it was submitted by one reporting person.