Michelle L. Gullo - 04 Feb 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
04 Feb 2026
Net transactions value
-$42,340
Form type
4
Filing time
06 Feb 2026, 16:14:21 UTC
Previous filing
30 Jan 2026
Next filing
11 Feb 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 Feb 2026 0002096996

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GLW Common Stock Options Exercise $0 +98 +0.27% $0.000000 36,098 04 Feb 2026 Direct F1
transaction GLW Common Stock Options Exercise $0 +119 +0.33% $0.000000 36,217 04 Feb 2026 Direct F1
transaction GLW Common Stock Options Exercise $0 +169 +0.47% $0.000000 36,386 04 Feb 2026 Direct F1
transaction GLW Common Stock Tax liability $42,340 -386 -1.1% $109.69 36,000 04 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 Performance Share Unit Award $0 +2,740 $0.000000 2,740 04 Feb 2026 Common Stock 2,740 Direct F1, F2
transaction GLW Performance Share Unit Award $0 +3,340 +80% $0.000000 7,523 04 Feb 2026 Common Stock 3,340 Direct F1, F3
transaction GLW Performance Share Unit Award $0 +4,759 +100% $0.000000 9,525 04 Feb 2026 Common Stock 4,759 Direct F1, F4
transaction GLW Performance Share Unit Options Exercise $0 -98 -3.6% $0.000000 2,642 04 Feb 2026 Common Stock 98 Direct F1, F5
transaction GLW Performance Share Unit Options Exercise $0 -119 -1.6% $0.000000 7,404 04 Feb 2026 Common Stock 119 Direct F1, F6
transaction GLW Performance Share Unit Options Exercise $0 -169 -1.8% $0.000000 9,356 04 Feb 2026 Common Stock 169 Direct F1, F7
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock.
F2 Performance share units (PSUs) were earned February 4, 2026 per Compensation Committee decision that performance criteria were satisfied for fiscal year 2025 pursuant to the 2025 agreement. Earned PSUs remain restricted until April 14, 2028, when they vest and convert to common stock, subject to service-based vesting requirement.
F3 Performance share units (PSUs) were earned February 4, 2026 per Compensation Committee decision that performance criteria were satisfied for fiscal year 2025 pursuant to the 2024 agreement. Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement.
F4 Performance share units (PSUs) were earned February 4, 2026 per Compensation Committee decision that performance criteria were satisfied for fiscal year 2025 pursuant to the 2023 agreement. Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement.
F5 Vesting to satisfy tax requirement pursuant to the 2025 agreement.
F6 Vesting to satisfy tax requirement pursuant to the 2024 agreement.
F7 Vesting to satisfy tax requirement pursuant to the 2023 agreement.