Michelle L. Gullo - 02 Jan 2026 Form 4 Insider Report for CORNING INC /NY (GLW)

Role
Senior Vice President & CHRO
Signature
Melissa J. Gambol, Power of Attorney
Issuer symbol
GLW
Transactions as of
02 Jan 2026
Net transactions value
-$25,660
Form type
4
Filing time
06 Jan 2026, 16:11:24 UTC
Previous filing
24 Nov 2025
Next filing
30 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gullo Michelle L Senior Vice President & CHRO 1 RIVERFRONT PLAZA, CORNING Melissa J. Gambol, Power of Attorney 06 Jan 2026 0002096996

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GLW Common Stock Options Exercise $0 +283 +0.79% $0.000000 36,283 02 Jan 2026 Direct
transaction GLW Common Stock Tax liability $25,660 -283 -0.78% $90.67 36,000 02 Jan 2026 Direct
holding GLW Common Stock - Held by Spouse 44 02 Jan 2026 Held by Spouse F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction GLW Restricted Stock Unit Options Exercise $0 -283 -7.2% $0.000000 3,670 02 Jan 2026 Common Stock 283 Direct F2, F6
holding GLW Restricted Stock Unit 918 02 Jan 2026 Common Stock 918 Direct F2, F3
holding GLW Restricted Stock Unit 76 02 Jan 2026 Common Stock 76 Held by Spouse F1, F2, F3
holding GLW Restricted Stock Unit 4,378 02 Jan 2026 Common Stock 4,378 Direct F2, F4
holding GLW Restricted Stock Unit 3,793 02 Jan 2026 Common Stock 3,793 Direct F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 The reporting person disclaims beneficial ownership of all securities held by spouse.
F2 Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.
F3 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.
F4 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.
F5 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.
F6 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.