13F Pro

SEC Form 4 reporting owner

Mariner Jonathan D

Mariner Jonathan D has filed 10 Form 4 transactions reported between December 2, 2025 and June 10, 2026, as Director of Rocket Companies, Inc., Director of Five9, Inc. and a reporting owner of OneStream, Inc..

Name as filed: MARINER JONATHAN D

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$570K
3 lines
Companies
3
with Form 4 filings
Latest transaction
Jun 10, 2026
transaction date

Roles and reported holdings

  • RKTRocket Companies, Inc.
    Jun 10, 2026

    Director

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

  • FIVNFive9, Inc.
    May 20, 2026

    Director

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

  • OSOneStream, Inc.
    Dec 2, 2025 – Apr 1, 2026

    Reporting owner

    Held directly7,130 sh as of Jan 6, 2026 · Form 4

    24 months: $570K sold

Transaction history

All 10 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jun 10, 2026RKTDirectorGrant or awardCode A · direct16,312—Form 4
May 20, 2026FIVNDirectorGrant or awardCode A · direct8,972—Form 4
Apr 1, 2026OSDisposition to issuerCode D · direct134,913—Form 4
Apr 1, 2026OSDisposition to issuerCode D · direct50,000—Form 4
Apr 1, 2026OSDisposition to issuerCode D · indirect40,051—Form 4
Apr 1, 2026OSDisposition to issuerCode D · direct206,949—Form 4
Apr 1, 2026OSDisposition to issuerCode D · direct7,130—Form 4
Jan 6, 2026OSOpen-market saleCode S · direct5,541$131K@ $23.59Form 4
Jan 6, 2026OSOpen-market saleCode S · direct2,415$55K@ $22.66Form 4
Dec 2, 2025OSOpen-market saleCode S · direct18,423$385K@ $20.90Form 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.