13F Pro

SEC Form 4 reporting owner

Richardson David Jeffrey

Richardson David Jeffrey has filed 11 Form 4 transactions reported between December 12, 2025 and September 8, 2026, as Director of AMBARELLA INC, Director of KULICKE & SOFFA INDUSTRIES INC and Director of LATTICE SEMICONDUCTOR CORP.

Name as filed: RICHARDSON DAVID JEFFREY

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$2.0M
3 lines
Companies
3
with Form 4 filings
Latest transaction
Sep 8, 2026
transaction date

Roles and reported holdings

  • AMBAAMBARELLA INC
    Dec 15, 2025 – Sep 8, 2026

    Director

    Held directly2,498 sh as of Dec 15, 2025 · Form 4
  • KLICKULICKE & SOFFA INDUSTRIES INC
    Dec 18, 2025 – Jul 6, 2026

    Director

    Held directly0 sh as of Dec 18, 2025 · Form 4
    Held indirectly (latest line)17,694 sh as of Feb 25, 2026 · Form 4

    24 months: $676K sold

  • LSCCLATTICE SEMICONDUCTOR CORP
    Dec 12, 2025 – May 4, 2026

    Director

    Held directly4,193 sh as of Dec 12, 2025 · Form 4
    Held indirectly (latest line)25,738 sh as of Feb 25, 2026 · Form 4

    24 months: $1.3M sold

Transaction history

All 11 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Sep 8, 2026AMBADirectorGrant or awardCode A · direct3,151—Form 4
Jul 6, 2026KLICDirectorGrant or awardCode A · direct407—Form 4
May 4, 2026LSCCDirectorGrant or awardCode A · direct1,752—Form 4
Apr 6, 2026KLICDirectorGrant or awardCode A · direct675—Form 4
Feb 25, 2026LSCCDirectorOpen-market saleCode S · indirect1,480$150K@ $101.21Form 4
Feb 25, 2026LSCCDirectorOpen-market saleCode S · indirect11,299$1.1M@ $100.66Form 4
Feb 25, 2026KLICDirectorOpen-market saleCode S · indirect9,364$676K@ $72.19Form 4
Jan 5, 2026KLICDirectorGrant or awardCode A · direct876—Form 4
Dec 18, 2025KLICDirectorGiftCode G · direct5,665—Form 4
Dec 15, 2025AMBADirectorGiftCode G · direct2,531—Form 4
Dec 12, 2025LSCCDirectorGiftCode G · direct2,671—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.