[Form 4] Corning Incorporated Insider Trading Activity

Rhea-AI Filing Summary

Steverson Lewis A, Vice Chairman, EVP and CLAO of Corning Incorporated (GLW), reported insider transactions dated 08/08/2025. He received 1,958 shares through conversion of performance share units at no cash cost, which the filing shows increased his direct common stock holdings to 41,717 shares. On the same date he sold 1,000 shares at $65.77, recorded as a disposal that left 40,717 shares beneficially owned. The filing also discloses substantial remaining restricted performance share units of 36,243 (vesting and converting April 15, 2026) and 30,292 (vesting and converting April 15, 2027). The report includes standard vesting schedule details for previously earned PSUs.

Positive

• 1,958 performance share units converted into common stock at no cash cost, increasing reported direct holdings to 41,717 shares
• Substantial remaining restricted PSUs: 36,243 (vesting April 15, 2026) and 30,292 (vesting April 15, 2027), which align insider compensation with long-term performance

Negative

• Disposition of 1,000 shares at $65.77, reducing direct holdings to 40,717 (represents a modest liquidation of stock)
• No additional disclosure in the filing about the purpose of the sale beyond the transaction code provided

Insights

Securities Analyst

Insider converted PSUs and sold a small tranche; transactions look routine and not materially informative for valuation.

The reporting shows a conversion of 1,958 performance share units into common shares at no cash price and a contemporaneous sale of 1,000 shares at $65.77. The conversion increased direct holdings to 41,717 before the sale and the sale reduced holdings to 40,717. Relative to the total beneficial ownership reported, the sale represents a small percentage and appears consistent with compensation vesting and routine liquidity actions rather than a significant change in insider conviction.

Corporate Governance Expert

Transactions reflect compensation vesting mechanics; remaining restricted PSUs maintain long-term alignment.

The Form 4 details earned performance share units that remain restricted until April 15, 2026 and April 15, 2027, indicating multi-year service-based vesting. Conversion of PSUs into shares at $0 is a normal outcome of earned equity compensation and increases the insider's direct stake. The separate sale of 1,000 shares appears modest compared with the insider's total reported holdings and does not itself indicate governance or disclosure concerns based on the filing.

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^*

STEVERSON LEWIS 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)
	Vice Chairman, EVP and CLAO

3. Date of Earliest Transaction (Month/Day/Year)
08/08/2025

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	08/08/2025		M		1,958	A	$0	41,717	D
Common Stock	08/08/2025		F		1,000	D	$65.77	40,717	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
Performance Share Unit	(1)							(2)	(2)	Common Stock	36,243		36,243	D
Performance Share Unit	(1)							(3)	(3)	Common Stock	30,292		30,292	D
Performance Share Unit	(1)	08/08/2025		M			1,958	(4)	(4)	Common Stock	1,958	$0	1,958	D

Explanation of Responses:

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

2. Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement.

3. Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement.

4. 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.

	Melissa J. Gambol, Power of Attorney	08/12/2025
	** 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).
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FAQ

What insider transactions did Corning (GLW) report on the Form 4?

The filing reports conversion of 1,958 performance share units into common stock and a sale of 1,000 shares at $65.77 on 08/08/2025.

How many shares does Steverson Lewis A beneficially own after the reported transactions?

After the reported transactions the filing shows 40,717 shares beneficially owned directly.

What performance share units remain outstanding for this reporting person?

The Form 4 discloses 36,243 PSUs that vest/convert on April 15, 2026 and 30,292 PSUs that vest/convert on April 15, 2027.

At what price were the sold shares transacted?

The sale of 1,000 shares was reported at a price of $65.77 per share.

Do the converted performance share units require additional service-based vesting?

The filing states earned PSUs remain subject to specified vesting schedules; earned PSUs from prior awards vest over time per the described schedule.