13F Pro

SEC Form 4 reporting owner

Zhang John Z

Zhang John Z has filed 12 Form 4 transactions reported between February 4, 2026 and May 11, 2026, as Exec. Vice President & CCDO of CORNING INC /NY.

Name as filed: Zhang John Z

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$5.0M
3 lines
Companies
1
with Form 4 filings
Latest transaction
May 11, 2026
transaction date

Roles and reported holdings

  • GLWCORNING INC /NY
    Feb 4, 2026 – May 11, 2026

    Exec. Vice President & CCDO

    Held directly5,138 sh as of May 11, 2026 · Form 4

    24 months: $5.0M sold

Transaction history

All 12 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
May 11, 2026GLWExec. Vice President & CCDOOpen-market saleCode S · direct10,000$2.0M@ $198.34Form 4
May 6, 2026GLWExec. Vice President & CCDOOpen-market saleCode S · direct15,000$2.8M@ $184.67Form 4
Apr 15, 2026GLWExec. Vice President & CCDOShares withheld for tax or exercise priceCode F · direct31,433$5.3M@ $168.27Form 4
Apr 15, 2026GLWExec. Vice President & CCDOOption exerciseCode M · direct18,884—Form 4
Apr 15, 2026GLWExec. Vice President & CCDOOption exerciseCode M · direct42,687—Form 4
Apr 1, 2026GLWExec. Vice President & CCDOGrant or awardCode A · direct9,692—Form 4
Feb 12, 2026GLWExec. Vice President & CCDOOpen-market saleCode S · direct1,531$205K@ $133.75Form 4
Feb 9, 2026GLWExec. Vice President & CCDOShares withheld for tax or exercise priceCode F · direct945$124K@ $131.39Form 4
Feb 9, 2026GLWExec. Vice President & CCDOOption exerciseCode M · direct2,476—Form 4
Feb 4, 2026GLWExec. Vice President & CCDOGrant or awardCode A · direct20,932—Form 4
Feb 4, 2026GLWExec. Vice President & CCDOGrant or awardCode A · direct15,591—Form 4
Feb 4, 2026GLWExec. Vice President & CCDOGrant or awardCode A · direct16,891—Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.