Becker Stefan 4

4 · CORNING INC /NY · Filed Apr 16, 2026

AI-generated summary of this filing

Updated Apr 16, 2026

Corning (GLW) SVP Stefan Becker Exercises Awards, Withholds Shares

What Happened

Stefan Becker, SVP, Finance & Corporate Controller at Corning (GLW), had performance share units (PSUs) and restricted stock units (RSUs) convert/vest on April 15, 2026, resulting in 44,780 shares issued to him (31,046 + 13,734). There was no exercise price paid (reported at $0.00 for the conversion). To satisfy tax withholding, 22,861 of those shares were withheld at a reported value of $168.27 per share, totaling $3,846,820. Net shares delivered to Becker after withholding: 21,919.

Key Details

Transaction date: 2026-04-15 (Form 4 filed 2026-04-16).
Conversion/exercise code: M (exercise/conversion of derivative awards); withholding code: F (payment of tax liability).
Shares acquired via conversion: 44,780 (31,046 and 13,734). Shares withheld for taxes: 22,861 @ $168.27 = $3,846,820.
Net shares received by insider: 21,919.
Relevant footnotes: F1 (PSU = contingent right to one share), F8 (earned PSUs vest/convert on 4/15/2026), F9 (RSUs vest 100% on 4/15/2026). The M dispositions reflect cancellation/conversion of the derivative awards.
Filing timing: Reported the next day (appears timely); no 10b5-1 plan or other trading plan disclosed in this filing.

Context

This was not an open-market buy or sell by the insider but a routine issuance on vesting of long-term awards, with a portion of shares withheld to cover tax obligations (a common, administrative transaction). Such withholding to satisfy taxes should not be read as a discretionary sale of stock.

Form 4

Period: 2026-04-15

SVP, Finance & Corp Controller

Transactions

Exercise/Conversion
Common Stock
2026-04-15+31,046→ 37,390 total
Exercise/Conversion
Common Stock
2026-04-15+13,734→ 51,124 total
Tax Payment
Common Stock
2026-04-15$168.27/sh−22,861$3,846,820→ 28,263 total
Exercise/Conversion
Performance Share Unit
[F1][F8]
2026-04-15−31,046→ 0 total
→ Common Stock (31,046 underlying)
Exercise/Conversion
Restricted Stock Unit
[F4][F9]
2026-04-15−13,734→ 0 total
→ Common Stock (13,734 underlying)

Holdings

Performance Share Unit
[F1][F2]
→ Common Stock (23,406 underlying)
23,406
Performance Share Unit
[F1][F3]
→ Common Stock (9,359 underlying)
9,359
Restricted Stock Unit
[F4][F5]
→ Common Stock (14,692 underlying)
14,692
Restricted Stock Unit
[F4][F6]
→ Common Stock (13,505 underlying)
13,505
Restricted Stock Unit
[F4][F7]
→ Common Stock (4,846 underlying)
4,846

Footnotes (9)

[F1]Each performance share unit represents a contingent right to receive one share of Corning Incorporated common stock.
[F2]Earned PSUs remain restricted until April 15, 2027, when they vest and convert to common stock, subject to service-based vesting requirement.
[F3]Earned PSUs remain restricted until April 14, 2028, when they vest and convert to common stock, subject to service-based vesting requirement.
[F4]Each restricted stock unit represents a contingent right to receive one share of Corning Incorporated common stock.
[F5]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.
[F6]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.
[F7]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.
[F8]Earned PSUs remain restricted until April 15, 2026, when they vest and convert to common stock, subject to service-based vesting requirement.
[F9]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.

Signature

Melissa J. Gambol, Power of Attorney|2026-04-16

1 file