13F Pro

SEC Form 4 reporting owner

Watson David O.

Watson David O. has filed 6 Form 4 transactions reported between December 16, 2025 and January 28, 2026, as General Counsel of Apellis Pharmaceuticals, Inc..

Name as filed: Watson David O.

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$470K
4 lines
Companies
1
with Form 4 filings
Latest transaction
Jan 28, 2026
transaction date

Roles and reported holdings

  • APLSApellis Pharmaceuticals, Inc.
    Dec 16, 2025 – Jan 28, 2026

    General Counsel

    Held directly88,531 sh as of Jan 22, 2026 · Form 4

    24 months: $470K sold

Transaction history

All 6 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Jan 28, 2026APLSGeneral CounselGrant or awardCode A · direct55,986—Form 4
Jan 22, 2026APLSGeneral CounselOpen-market saleCode S · direct7,832$170K@ $21.77Form 4
Jan 20, 2026APLSGeneral CounselOpen-market saleCode S · direct2,475$49K@ $19.79Form 4
Jan 13, 2026APLSGeneral CounselOpen-market saleCode S · direct5,780$128K@ $22.19Form 4
Jan 7, 2026APLSGeneral CounselOption exerciseCode M · direct888$13K@ $14.95Form 4
Dec 16, 2025APLSGeneral CounselOpen-market saleCode S · direct5,000$122K@ $24.49Form 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.