[Form 4] Corning Incorporated Insider Trading Activity

Rhea-AI Filing Summary

Edward A. Schlesinger, Executive Vice President and Chief Financial Officer of Corning Incorporated (GLW), reported insider transactions affecting his direct holdings of common stock and his performance share units (PSUs). On 08/08/2025 he acquired 1,415 shares (transaction code M) at $0 and sold 723 shares (transaction code F) at $65.77, leaving reported beneficial ownership of 79,008 shares following the transactions and a prior reported level of 79,731 after the acquisition line. The filing also lists derivative holdings comprising PSUs representing 22,412 and 19,929 shares, plus an additional 1,415 PSUs converted to common stock; the PSUs have staggered vesting with restrictions remaining until April 15, 2026 and April 15, 2027, and a stated vesting schedule for PSUs earned February 7, 2024 that vests in portions through the third anniversary of the grant date.

Insights

Corporate Governance Expert

TL;DR: CFO reported routine compensation vesting and a small sale, resulting in a net increase of 692 shares and continued PSU-based deferred equity.

The report shows a 1,415-share acquisition (code M) and a 723-share sale at $65.77, which mathematically results in a net increase of 692 shares for the reporting period. The executive retains substantial PSU awards—22,412 and 19,929 units—with stated restrictions and staggered vesting through 2026 and 2027. From a governance perspective, these entries are consistent with routine equity compensation and scheduled vesting, and they reaffirm an ongoing equity incentive alignment between management and shareholders.

Securities Analyst

TL;DR: Reported trades reflect compensation-related vesting events and a small open-market disposition; immediate market impact is likely limited.

Details in the form indicate both direct stock movement and derivative holdings converting to common shares. The combination of a $0 acquisition line and PSU conversions suggests issuance/vesting activity rather than an open-market purchase. The reported sale of 723 shares at $65.77 is explicit and reduces holdings from the post-acquisition count to 79,008 shares. Given the presence of large PSU balances with later vesting dates, these items are material to the officer's ownership profile but represent planned compensation mechanics rather than an unscheduled change in strategy.

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

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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^*

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)
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		1,415	A	$0	79,731	D
Common Stock	08/08/2025		F		723	D	$65.77	79,008	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	22,412		22,412	D
Performance Share Unit	(1)							(3)	(3)	Common Stock	19,929		19,929	D
Performance Share Unit	(1)	08/08/2025		M			1,415	(4)	(4)	Common Stock	1,415	$0	1,415	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
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