John Z. Zhang - 09 Feb 2026 Form 4 Insider Report for CORNING INC /NY (GLW)

Signature
Melissa J. Gambol, Power of Attorney
Issuer symbol
GLW
Transactions as of
09 Feb 2026
Net transactions value
-$124,164
Form type
4
Filing time
11 Feb 2026, 16:32:25 UTC
Previous filing
06 Feb 2026
Next filing
12 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Zhang John Z Exec. Vice President & CCDO ONE RIVERFRONT PLAZA, CORNING Melissa J. Gambol, Power of Attorney 11 Feb 2026 0001825618

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GLW Common Stock Options Exercise $0 +2,476 $0.000000 2,476 09 Feb 2026 Direct
transaction GLW Common Stock Tax liability $124,164 -945 -38% $131.39 1,531 09 Feb 2026 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 -2,476 -100% $0.000000 0 09 Feb 2026 Common Stock 2,476 Direct F1, F5
holding GLW Restricted Stock Unit 18,884 09 Feb 2026 Common Stock 18,884 Direct F1, F2
holding GLW Restricted Stock Unit 22,498 09 Feb 2026 Common Stock 22,498 Direct F1, F3
holding GLW Restricted Stock Unit 24,374 09 Feb 2026 Common Stock 24,374 Direct F1, F4
* 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) 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.
F3 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.
F4 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.
F5 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.