Ronald L. Verkleeren - 21 Nov 2025 Form 4 Insider Report for CORNING INC /NY (GLW)

Role
SVP Emerging Innovations Group
Signature
Melissa J. Gambol, Power of Attorney
Issuer symbol
GLW
Transactions as of
21 Nov 2025
Transactions value $
-$229,083
Form type
4
Filing time
24 Nov 2025, 16:09:14 UTC
Previous filing
12 Aug 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Verkleeren Ronald L SVP Emerging Innovations Group ONE RIVERFRONT PLAZA, CORNING Melissa J. Gambol, Power of Attorney 24 Nov 2025 0001825613

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GLW Common Stock Options Exercise $0 +689 +1.24% $0.00 56.2K 21 Nov 2025 Direct
transaction GLW Common Stock Options Exercise $0 +737 +1.31% $0.00 56.9K 21 Nov 2025 Direct
transaction GLW Common Stock Options Exercise $0 +794 +1.39% $0.00 57.7K 21 Nov 2025 Direct
transaction GLW Common Stock Options Exercise $0 +663 +1.15% $0.00 58.4K 21 Nov 2025 Direct
transaction GLW Common Stock Tax liability -$229K -2.88K -4.94% $79.46 55.5K 21 Nov 2025 Direct

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 -689 -4.59% $0.00 14.3K 21 Nov 2025 Common Stock 689 Direct F1, F4
transaction GLW Restricted Stock Unit Options Exercise $0 -737 -4.59% $0.00 15.3K 21 Nov 2025 Common Stock 737 Direct F1, F5
transaction GLW Performance Share Unit Options Exercise $0 -794 -4.59% $0.00 16.5K 21 Nov 2025 Common Stock 794 Direct F6, F7
transaction GLW Performance Share Unit Options Exercise $0 -663 -4.58% $0.00 13.8K 21 Nov 2025 Common Stock 663 Direct F6, F8
holding GLW Restricted Stock Unit 2.48K 21 Nov 2025 Common Stock 2.48K Direct F1, F2
holding GLW Restricted Stock Unit 12.2K 21 Nov 2025 Common Stock 12.2K Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.
F2 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.
F3 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.
F4 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.
F5 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.
F6 Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock.
F7 Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement.
F8 Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement.