STOCK TITAN

Corning (GLW) SVP & CHRO exercises equity awards, now holds 42,951 shares

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Corning Senior Vice President & CHRO Michelle L. Gullo exercised equity awards and increased her direct common stock holdings. On April 15, 2026, she exercised performance share units and restricted stock units that together delivered 13,149 shares of Corning common stock. As part of the same event, 6,198 shares were withheld at a price of $168.27 per share to cover tax obligations, which is not an open-market sale. Following these transactions, she directly holds 42,951 shares of common stock. She also retains unvested performance and restricted stock units tied to Corning common stock that are scheduled to vest between April 2026 and April 2029, subject to service-based vesting conditions.

Positive

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Negative

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Insider Gullo Michelle L
Role Senior Vice President & CHRO
Type Security Shares Price Value
Exercise Performance Share Unit 9,356 $0.00 --
Exercise Restricted Stock Unit 3,793 $0.00 --
Exercise Common Stock 9,356 $0.00 --
Exercise Common Stock 3,793 $0.00 --
Tax Withholding Common Stock 6,198 $168.27 $1.04M
holding Performance Share Unit -- -- --
holding Performance Share Unit -- -- --
holding Restricted Stock Unit -- -- --
holding Restricted Stock Unit -- -- --
holding Restricted Stock Unit -- -- --
Holdings After Transaction: Performance Share Unit — 0 shares (Direct); Restricted Stock Unit — 0 shares (Direct); Common Stock — 45,356 shares (Direct)
Footnotes (1)
  1. Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock. Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement. Earned PSUs remain restricted until April 14, 2028, when they vest and convert to common stock, subject to service-based vesting requirement. Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock. 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. 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. 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. Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement. 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.
Derivative shares exercised 13,149 shares Total underlying shares from PSU and RSU exercises on April 15, 2026
Shares withheld for taxes 6,198 shares Tax-withholding disposition at $168.27 per share
Post-transaction holdings 42,951 shares Common stock directly owned after transactions
PSU remaining grant 1 7,404 underlying shares Performance share units with 0.0000 exercise price, direct ownership
RSU remaining grant 1 4,378 underlying shares Restricted stock units vesting 100% on April 15, 2026
Exercise price of awards $0.00 per unit Conversion/exercise price for PSUs and RSUs reported
Tax-withholding price $168.27 per share Price used for 6,198-share tax-withholding disposition
Performance Share Unit financial
"Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock."
A performance share unit (PSU) is a form of executive or employee pay that promises shares (or the cash value of shares) only if the company meets specific performance targets over a set period. Think of it like a bonus cheque that only arrives if the company hits agreed goals — it aligns managers’ rewards with business results and signals to investors how leadership is being incentivized to grow value over time.
Restricted Stock Unit financial
"Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock."
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
tax-withholding disposition financial
"Payment of exercise price or tax liability by delivering securities"
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
service-based vesting requirement financial
"when they vest and convert to common stock, subject to service-based vesting requirement."
exercise or conversion of derivative security financial
"Exercise or conversion of derivative security"
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Gullo Michelle L

(Last)(First)(Middle)
1 RIVERFRONT PLAZA

(Street)
CORNING NEW YORK 14831

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
CORNING INC /NY [ GLW ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Senior Vice President & CHRO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/15/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock04/15/2026M9,356A$045,356D
Common Stock04/15/2026M3,793A$049,149D
Common Stock04/15/2026F6,198D$168.2742,951D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Performance Share Unit(1) (2) (2)Common Stock7,4047,404D
Performance Share Unit(1) (3) (3)Common Stock2,6422,642D
Restricted Stock Unit(4) (5) (5)Common Stock4,3784,378D
Restricted Stock Unit(4) (6) (6)Common Stock3,6703,670D
Restricted Stock Unit(4) (7) (7)Common Stock2,8452,845D
Performance Share Unit(1)04/15/2026M9,356 (8) (8)Common Stock9,356$00D
Restricted Stock Unit(4)04/15/2026M3,793 (9) (9)Common Stock3,793$00D
Explanation of Responses:
1. Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock.
2. Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement.
3. Earned PSUs remain restricted until April 14, 2028, when they vest and convert to common stock, subject to service-based vesting requirement.
4. Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.
5. 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.
6. 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.
7. 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.
8. Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement.
9. 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.
Melissa J. Gambol, Power of Attorney04/16/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What did Corning (GLW) executive Michelle Gullo do in this Form 4 filing?

Michelle L. Gullo exercised equity awards to acquire additional Corning common shares. She converted performance share units and restricted stock units into 13,149 shares, with a portion withheld for taxes, and now directly holds 42,951 Corning common shares after the reported transactions.

How many Corning (GLW) shares did Michelle Gullo acquire and retain?

She acquired 13,149 Corning common shares through equity award exercises. After 6,198 shares were withheld to cover tax obligations, her direct common stock holdings reported in this filing increased to 42,951 shares, reflecting her post-transaction ownership position shown in the non-derivative table.

Was there an open-market sale of Corning (GLW) shares in this Form 4?

The filing shows no open-market sale. The only disposition, involving 6,198 shares at $168.27, is coded as tax-withholding, meaning shares were delivered to cover tax liabilities linked to the equity award vesting, rather than sold voluntarily on the open market.

What performance share units does Michelle Gullo still hold at Corning (GLW)?

She continues to hold performance share units tied to Corning common stock with underlying share amounts, including 7,404 and 2,642 shares. Footnotes explain these earned PSUs remain restricted and are scheduled to vest and convert to common stock between April 2026 and April 2028.

What restricted stock units remain outstanding for Michelle Gullo at Corning (GLW)?

She retains restricted stock units linked to 4,378, 3,670, and 2,845 underlying Corning common shares. According to the footnotes, these RSUs vest 100% on April 15, 2026, April 14, 2028, and April 16, 2029, subject to service-based vesting and specific events in the award agreements.

How many derivative shares did Michelle Gullo exercise in this Corning (GLW) filing?

The transaction summary shows two derivative exercises totaling 13,149 underlying shares. These involved performance share units and restricted stock units that converted into Corning common stock, increasing her direct share ownership while reducing those specific derivative award balances.