Wendell P. Weeks - 15 Apr 2026 Form 4 Insider Report for CORNING INC /NY (GLW)

Reporting relationship: Chairman, CEO and President, Director
Issuer ticker: GLW
Reported as of: 15 Apr 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 Apr 2026, 15:58:03 UTC
Prior SEC filing: 02 Apr 2026
Next SEC filing: 09 Jun 2026
Source filing: View source filing
Reporting owner signature: Melissa J. Gambol, Power of Attorney

Key filing fact

Wendell P. Weeks filed Form 4 for CORNING INC /NY (GLW) on 16 Apr 2026.

Key facts

This page summarizes Wendell P. Weeks's Form 4 filing for CORNING INC /NY (GLW).
5 reported transactions and 7 derivative rows are listed below.
Accepted by SEC: 16 Apr 2026, 15:58.

Change

Previous filing in this sequence was filed on 02 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001206158 Primary reporting owner

WEEKS WENDELL P

Relationship: Chairman, CEO and President, Director
Address: ONE RIVERFRONT PLAZA, CORNING
Signature: Melissa J. Gambol, Power of Attorney
Signature date: 16 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

GLW transaction

Common Stock

Options Exercise

Transaction value
Shares: +235,610
Change %: +32%
Price: $0.000000^*
Shares after: 969,501
Date: 15 Apr 2026
Ownership: Direct

GLW transaction

Common Stock

Options Exercise

Transaction value
Shares: +104,474
Change %: +11%
Price: $0.000000^*
Shares after: 1,073,975
Date: 15 Apr 2026
Ownership: Direct

GLW transaction

Common Stock

Tax liability

Transaction value
Shares: -165,622
Change %: -15%
Price: $168.27^*
Shares after: 908,353
Date: 15 Apr 2026
Ownership: Direct

GLW holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 9,200
Date: 15 Apr 2026
Ownership: Held by Spouse
Footnotes: F1

GLW holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 7,136
Date: 15 Apr 2026
Ownership: Held By Spouse - Emp. Ben. Plan
Footnotes: F1, F2

GLW holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 11,763
Date: 15 Apr 2026
Ownership: Trustee U/employee Benefit Plan
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

GLW transaction Derivative

Performance Share Unit

Options Exercise

Transaction value
Shares: -235,610
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 235,610
Exercise price
Footnotes: F3, F10

GLW transaction Derivative

Restricted Stock Unit

Options Exercise

Transaction value
Shares: -104,474
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 15 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 104,474
Exercise price
Footnotes: F6, F11

GLW holding Derivative

Performance Share Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 178,486
Date: 15 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 178,486
Exercise price
Footnotes: F3, F4

GLW holding Derivative

Performance Share Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 60,106
Date: 15 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 60,106
Exercise price
Footnotes: F3, F5

GLW holding Derivative

Restricted Stock Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 111,863
Date: 15 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 111,863
Exercise price
Footnotes: F6, F7

GLW holding Derivative

Restricted Stock Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 86,634
Date: 15 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 86,634
Exercise price
Footnotes: F6, F8

GLW holding Derivative

Restricted Stock Unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 30,868
Date: 15 Apr 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 30,868
Exercise price
Footnotes: F6, F9

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 11 footnotes

Footnote F1

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

Footnote F2

Ownership is represented by units held in a unitized stock fund through the issuer's 401(k) retirement plan as of March 31, 2026.

Footnote F3

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

Footnote F4

Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement.

Footnote F5

Earned PSUs remain restricted until April 14, 2028, when they vest and convert to common stock, subject to service-based vesting requirement.

Footnote F6

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

Footnote F7

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.

Footnote F8

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.

Footnote F9

The restricted stock units (RSUs) vest 100% on April 16, 2029. Events such as retirement, death, disability, and others specified in the agreement may result in vesting prior to the vesting date.

Footnote F10

Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement.

Footnote F11

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.