Zhang John Z 4

4 · CORNING INC /NY · Filed Feb 11, 2026

AI-generated summary of this filing

Updated Feb 11, 2026

Corning (GLW) Exec VP John Z. Zhang Exercises RSUs, Sells Shares

What Happened

John Z. Zhang, Executive Vice President & Chief Commercial and Digital Officer of Corning Inc. (GLW), converted (exercised) 2,476 restricted stock units (RSUs) into 2,476 shares on Feb 9, 2026. To satisfy tax withholding, 945 of those shares were disposed (withheld/sold) at $131.39 per share, totaling $124,164.
The filing shows the RSU conversion as derivative exercise (transaction code M) and the tax withholding as a payment of tax liability (transaction code F). The RSU conversion records a $0.00 per-share exercise price (typical for RSU settlement).

Key Details

Transaction date: February 9, 2026; Form 4 filed February 11, 2026 (filed within the typical 2-business-day window).
Shares converted: 2,476 RSUs → 2,476 shares (recorded at $0.00 exercise price).
Shares withheld/sold for taxes: 945 shares at $131.39 each = $124,164.
Footnotes: RSUs represent contingent rights to one share (F1). Vesting schedules cited include 100% vesting on Apr 15, 2026 (F2), Apr 15, 2027 (F3), Apr 14, 2028 (F4), and a staggered schedule for a Feb 8, 2023 grant that vests 1/3 after 1 year then 1/6 every 6 months until fully vested on the 3rd anniversary (F5).
Shares owned after the transaction: not specified in this filing.

Context

RSUs are typically settled into shares when they vest; the tax withholding here is a routine disposition to cover tax obligations, not an open-market sale intended as a liquidity/market bet.
Transaction codes: M = exercise/conversion of derivative (RSU conversion), F = payment of exercise price or tax withholding.
This appears to be a routine RSU settlement and tax-withholding event rather than a market-timed purchase or sale.

Form 4

Period: 2026-02-09

Exec. Vice President & CCDO

Transactions

Exercise/Conversion
Common Stock
2026-02-09+2,476→ 2,476 total
Tax Payment
Common Stock
2026-02-09$131.39/sh−945$124,164→ 1,531 total
Exercise/Conversion
Restricted Stock Unit
[F1][F5]
2026-02-09−2,476→ 0 total
→ Common Stock (2,476 underlying)

Holdings

Footnotes (5)

[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.

Signature

Melissa J. Gambol, Power of Attorney|2026-02-11

1 file