13F Pro

SEC Form 4 reporting owner

Vondran Steven O

Vondran Steven O has filed 9 Form 4 transactions reported between January 5, 2026 and March 11, 2026, as President and CEO of AMERICAN TOWER CORP /MA/ and Director of AMEREN CORP.

Name as filed: Vondran Steven O

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$6.3M
3 lines
Companies
2
with Form 4 filings
Latest transaction
Mar 11, 2026
transaction date

Roles and reported holdings

  • AMTAMERICAN TOWER CORP /MA/
    Feb 25, 2026 – Mar 11, 2026

    President and CEO

    Held directly108,902 sh as of Mar 11, 2026 · Form 4

    24 months: $6.3M sold

  • AEEAMEREN CORP
    Jan 5, 2026

    Director

    No common-stock holding reported on a purchase, sale, gift or withholding line.

Transaction history

All 9 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Mar 11, 2026AMTPresident and CEOShares withheld for tax or exercise priceCode F · direct2,158$395K@ $182.85Form 4
Mar 10, 2026AMTPresident and CEOShares withheld for tax or exercise priceCode F · direct15,269$2.8M@ $186.12Form 4
Mar 10, 2026AMTPresident and CEOGrant or awardCode A · direct20,955—Form 4
Mar 4, 2026AMTPresident and CEOOpen-market saleCode S · direct1,773$337K@ $189.82Form 4
Mar 4, 2026AMTPresident and CEOOpen-market saleCode S · direct16,625$3.1M@ $188.82Form 4
Mar 4, 2026AMTPresident and CEOOpen-market saleCode S · direct15,084$2.8M@ $187.90Form 4
Mar 4, 2026AMTPresident and CEOOption exerciseCode M · direct33,482$3.2M@ $94.71Form 4
Feb 25, 2026AMTPresident and CEOGrant or awardCode A · direct24,626—Form 4
Jan 5, 2026AEEDirectorGrant or awardCode A · direct1,686—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.