Corning (GLW) EVP John Z. Zhang exercises equity awards, 31,433 shares withheld for taxes
Filing Impact
Filing Sentiment
Form Type
4
Rhea-AI Filing Summary
Corning Incorporated executive John Z. Zhang, Exec. Vice President & CCDO, exercised equity awards that converted into common stock and triggered a tax share withholding. On April 15, 2026, he exercised performance share units and restricted stock units covering 61,571 shares of common stock in total, reflected as derivative exercises.
Following these exercises, 31,433 common shares were withheld in a tax-withholding disposition at an indicated price of $168.27 per share, leaving Zhang with 30,138 common shares held directly after the reported transactions. He also continues to hold multiple performance share unit and restricted stock unit awards that remain subject to future service-based vesting on dates ranging from April 15, 2026 through April 16, 2029.
Positive
- None.
Negative
- None.
Insider Trade Summary
61,571 shares exercised/converted
Mixed
10 txns
Insider
Zhang John Z
Role
Exec. Vice President & CCDO
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Performance Share Unit | 42,687 | $0.00 | -- |
| Exercise | Restricted Stock Unit | 18,884 | $0.00 | -- |
| Exercise | Common Stock | 42,687 | $0.00 | -- |
| Exercise | Common Stock | 18,884 | $0.00 | -- |
| Tax Withholding | Common Stock | 31,433 | $168.27 | $5.29M |
| 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 — 42,687 shares (Direct)
Footnotes (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.
Key Figures
Derivative shares exercised: 61,571 shares
Tax-withholding shares: 31,433 shares
Tax-withholding price: $168.27 per share
+4 more
7 metrics
Derivative shares exercised
61,571 shares
Exercise of performance share units and restricted stock units on April 15, 2026
Tax-withholding shares
31,433 shares
Common stock disposed to cover tax liability
Tax-withholding price
$168.27 per share
Price reported for tax-withholding disposition
Shares held after transactions
30,138 shares
Direct common stock holdings following reported Form 4 activity
PSUs underlying shares (grant 1)
35,839 shares
Performance share units with underlying Corning common stock
PSUs underlying shares (grant 2)
16,891 shares
Additional performance share units outstanding
RSUs underlying shares (grant 1)
22,498 shares
Restricted stock units tied to Corning common stock
Key Terms
Performance Share Unit, Restricted Stock Unit, tax-withholding disposition, service-based vesting requirement, +1 more
5 terms
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
"Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement."
derivative security financial
"Exercise or conversion of derivative security."
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
FAQ
What did Corning (GLW) executive John Z. Zhang report in this Form 4?
John Z. Zhang reported exercising performance share units and restricted stock units into common stock. The transactions converted 61,571 underlying shares and included a tax-withholding disposition, updating his directly held Corning common stock position and reflecting routine equity compensation activity.
What unvested equity awards does John Z. Zhang still hold at Corning (GLW)?
Zhang continues to hold multiple performance share unit and restricted stock unit awards at Corning. These remaining awards are tied to specific vesting dates between April 15, 2026 and April 16, 2029, and generally require continued service before converting into common stock.
When do John Z. Zhang’s Corning (GLW) PSUs and RSUs vest?
His earned performance share units and restricted stock units vest on several future dates, including April 15, 2026, April 14, 2028, and April 16, 2029. Vesting is subject to service-based requirements, and certain events like retirement or disability may accelerate vesting under award terms.