Corning (GLW) SVP Gullo converts RSUs; 331 shares withheld for taxes

Rhea-AI Filing Summary

Corning Incorporated senior vice president and CHRO Michelle L. Gullo reported several equity transactions dated February 9, 2026. She exercised 918 restricted stock units into an equal number of common shares at an exercise price of $0 and had 331 common shares withheld at $131.39 per share to satisfy tax obligations, leaving her with 36,587 directly held common shares.

Her spouse separately received 76 common shares from restricted stock unit conversion and had 32 shares withheld at $131.39 per share for taxes, ending with 44 common shares held indirectly, which Gullo disclaims beneficial ownership of. She also continues to hold 3,793, 4,378, and 3,670 restricted stock units that vest 100% on April 15, 2026, April 15, 2027, and April 14, 2028, respectively.

Insider Trade Summary

994 shares exercised/converted

Mixed 9 txns

Insider Gullo Michelle L

Role Senior Vice President & CHRO

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	918	$0.00	--
Exercise	Restricted Stock Unit	76	$0.00	--
Exercise	Common Stock	918	$0.00	--
Exercise	Common Stock - Held by Spouse	76	$0.00	--
Tax Withholding	Common Stock - Held by Spouse	32	$131.39	$4K
Tax Withholding	Common Stock	331	$131.39	$43K
holding	Restricted Stock Unit	--	--	--
holding	Restricted Stock Unit	--	--	--
holding	Restricted Stock Unit	--	--	--

Holdings After Transaction: Restricted Stock Unit — 0 shares (Direct); Restricted Stock Unit — 0 shares (Indirect, Held by Spouse); Common Stock — 36,918 shares (Direct); Common Stock - Held by Spouse — 76 shares (Indirect, Held by Spouse)

Footnotes (1)

1. The reporting person disclaims beneficial ownership of all securities held by spouse. Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock. The restricted stock units (RSUs) vest 100% on April 15, 2026. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date. The restricted stock units (RSUs) vest 100% on April 15, 2027. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date. The restricted stock units (RSUs) vest 100% on April 14, 2028. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date. The restricted stock units (RSUs) granted on February 8, 2023 vest 1/3 after 1 year from the grant date and 1/6 every 6 months thereafter until fully vested on the third anniversary of the grant date.

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^*

Gullo Michelle L

(Last) (First) (Middle)

1 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)
	Senior Vice President & CHRO

3. Date of Earliest Transaction (Month/Day/Year)
02/09/2026

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	02/09/2026		M		918	A	$0	36,918	D
Common Stock - Held by Spouse	02/09/2026		M		76	A	$0	76	I	Held by Spouse(1)
Common Stock - Held by Spouse	02/09/2026		F		32	D	$131.39	44	I	Held by Spouse(1)
Common Stock	02/09/2026		F		331	D	$131.39	36,587	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
Restricted Stock Unit	(2)							(3)	(3)	Common Stock	3,793		3,793	D
Restricted Stock Unit	(2)							(4)	(4)	Common Stock	4,378		4,378	D
Restricted Stock Unit	(2)							(5)	(5)	Common Stock	3,670		3,670	D
Restricted Stock Unit	(2)	02/09/2026		M			918	(6)	(6)	Common Stock	918	$0	0	D
Restricted Stock Unit	(2)	02/09/2026		M			76	(6)	(6)	Common Stock	76	$0	0	I	Held by Spouse(1)

Explanation of Responses:

1. The reporting person disclaims beneficial ownership of all securities held by spouse.

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

3. The restricted stock units (RSUs) vest 100% on April 15, 2026. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date.

4. The restricted stock units (RSUs) vest 100% on April 15, 2027. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date.

5. The restricted stock units (RSUs) vest 100% on April 14, 2028. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date.

6. The restricted stock units (RSUs) granted on February 8, 2023 vest 1/3 after 1 year from the 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	02/11/2026
	** 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.
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FAQ

What insider transactions did Corning (GLW) executive Michelle L. Gullo report on February 9, 2026?

Michelle L. Gullo reported exercising 918 restricted stock units into common stock and related tax-withholding share dispositions. The filing also shows equity activity involving 76 shares for her spouse and documents her remaining unvested restricted stock unit holdings with specified future vesting dates.

How many Corning (GLW) common shares does Michelle L. Gullo directly hold after these transactions?

After the February 9, 2026 transactions, Michelle L. Gullo directly holds 36,587 shares of Corning common stock. This follows the conversion of 918 restricted stock units and the withholding of 331 shares at $131.39 per share to cover tax obligations related to the equity awards.

What tax-withholding share dispositions were reported in Michelle L. Gullo’s Corning (GLW) Form 4?

The filing shows 331 directly held Corning common shares and 32 spouse-held shares disposed of at $131.39 per share. These transactions are coded “F,” indicating shares were withheld to pay exercise price or tax liabilities arising from the restricted stock unit conversions.

What Corning (GLW) restricted stock units does Michelle L. Gullo still hold and when do they vest?

Michelle L. Gullo continues to hold three blocks of Corning restricted stock units: 3,793 units vesting 100% on April 15, 2026, 4,378 units vesting 100% on April 15, 2027, and 3,670 units vesting 100% on April 14, 2028, subject to plan terms such as retirement or disability.

How are Corning (GLW) shares held by Michelle L. Gullo’s spouse treated in this Form 4?

Shares labeled as “Common Stock - Held by Spouse” reflect equity activity for her spouse, including 76 shares from RSU conversion and 32 shares withheld for taxes. A footnote states Gullo disclaims beneficial ownership of all securities held by her spouse, despite reporting them as indirect holdings.

What does each Corning (GLW) restricted stock unit reported by Michelle L. Gullo represent?

Each restricted stock unit represents a contingent right to receive one share of Corning common stock. The units vest on specified future dates, and certain events such as retirement, death, or disability, as described in the award agreements, may cause vesting to occur earlier than the stated schedule.