SEC Form 4 reporting owner

Hwang Donghyun Thomas

Hwang Donghyun Thomas has filed 35 Form 4 transactions reported between December 4, 2025 and June 25, 2026, as SVP, Global Sales of MACOM Technology Solutions Holdings, Inc..

Name as filed: Hwang Donghyun Thomas

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$3.9M
34 lines
Companies
1
with Form 4 filings
Latest transaction
Jun 25, 2026
transaction date

Roles and reported holdings

  • MTSIMACOM Technology Solutions Holdings, Inc.
    Dec 4, 2025 – Jun 25, 2026

    SVP, Global Sales

    Held directly29,856 sh as of Jun 25, 2026 · Form 4

    24 months: $3.9M sold

Transaction history

All 35 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jun 25, 2026MTSISVP, Global SalesOpen-market saleCode S · direct291$113K@ $389.74Form 4
Jun 25, 2026MTSISVP, Global SalesOpen-market saleCode S · direct400$155K@ $386.62Form 4
Jun 25, 2026MTSISVP, Global SalesOpen-market saleCode S · direct9$3K@ $384.35Form 4
Jun 25, 2026MTSISVP, Global SalesOpen-market saleCode S · direct300$115K@ $382.91Form 4
Jun 25, 2026MTSISVP, Global SalesOpen-market saleCode S · direct420$160K@ $382.04Form 4
Jun 25, 2026MTSISVP, Global SalesOpen-market saleCode S · direct200$75K@ $375.34Form 4
Jun 25, 2026MTSISVP, Global SalesOpen-market saleCode S · direct100$37K@ $367.30Form 4
May 18, 2026MTSISVP, Global SalesOpen-market saleCode S · direct95$36K@ $381.23Form 4
May 18, 2026MTSISVP, Global SalesOpen-market saleCode S · direct200$74K@ $367.50Form 4
May 18, 2026MTSISVP, Global SalesOpen-market saleCode S · direct100$36K@ $362.89Form 4
May 18, 2026MTSISVP, Global SalesOpen-market saleCode S · direct500$178K@ $356.68Form 4
May 18, 2026MTSISVP, Global SalesOpen-market saleCode S · direct300$106K@ $353.32Form 4
May 15, 2026MTSISVP, Global SalesGrant or awardCode A · direct85$12K@ $138.13Form 4
Apr 30, 2026MTSISVP, Global SalesOpen-market saleCode S · direct65$18K@ $281.59Form 4
Apr 30, 2026MTSISVP, Global SalesOpen-market saleCode S · direct635$178K@ $279.75Form 4
Apr 30, 2026MTSISVP, Global SalesOpen-market saleCode S · direct700$195K@ $278.42Form 4
Apr 30, 2026MTSISVP, Global SalesOpen-market saleCode S · direct1,518$417K@ $274.79Form 4
Apr 30, 2026MTSISVP, Global SalesOpen-market saleCode S · direct200$55K@ $273.48Form 4
Apr 30, 2026MTSISVP, Global SalesOpen-market saleCode S · direct100$27K@ $271.40Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct200$47K@ $235.81Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct500$116K@ $232.68Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct600$139K@ $231.45Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct300$69K@ $230.20Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct359$82K@ $228.70Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct800$182K@ $227.92Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct400$91K@ $226.58Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct100$23K@ $225.01Form 4
Feb 2, 2026MTSISVP, Global SalesOpen-market saleCode S · direct1,715$373K@ $217.38Form 4
Dec 4, 2025MTSISVP, Global SalesOpen-market saleCode S · direct100$19K@ $189.36Form 4
Dec 4, 2025MTSISVP, Global SalesOpen-market saleCode S · direct300$57K@ $188.62Form 4
Dec 4, 2025MTSISVP, Global SalesOpen-market saleCode S · direct880$165K@ $187.60Form 4
Dec 4, 2025MTSISVP, Global SalesOpen-market saleCode S · direct875$163K@ $186.76Form 4
Dec 4, 2025MTSISVP, Global SalesOpen-market saleCode S · direct400$74K@ $185.35Form 4
Dec 4, 2025MTSISVP, Global SalesOpen-market saleCode S · direct200$37K@ $184.24Form 4
Dec 4, 2025MTSISVP, Global SalesOpen-market saleCode S · direct1,617$297K@ $183.40Form 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.