SEC Form 4 reporting owner

Griffiths Richard Ian

Griffiths Richard Ian has filed 18 Form 4 transactions reported between August 3, 2025 and August 10, 2026, as 10% owner of Silence Therapeutics plc.

Name as filed: Griffiths Richard Ian

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
None
reported
Companies
1
with Form 4 filings
Latest transaction
Aug 10, 2026
transaction date

Roles and reported holdings

  • SLNSilence Therapeutics plc
    Aug 3, 2025 – Aug 10, 2026

    10% owner

    Held indirectly (latest line)4,897,166 sh as of Aug 10, 2026 · Form 4

Transaction history

All 18 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect60,000—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect120,000—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect605,174—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect470,820—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect382,000—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect800,000—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect3,500—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect50,000—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect100,000—Form 4
Aug 10, 2026SLN10% ownerOpen-market saleCode S · indirect2,792,826—Form 4
Jul 6, 2026SLN10% ownerOpen-market saleCode S · indirect865,112—Form 4
Jul 2, 2026SLN10% ownerOpen-market saleCode S · indirect50,082—Form 4
Jul 1, 2026SLN10% ownerOpen-market saleCode S · indirect50,000—Form 4
Jul 1, 2026SLN10% ownerOpen-market saleCode S · indirect79,180—Form 4
Jun 30, 2026SLN10% ownerOpen-market saleCode S · indirect169,928—Form 4
Jun 29, 2026SLN10% ownerOpen-market saleCode S · indirect330,072—Form 4
Oct 27, 2025SLN10% ownerOpen-market saleCode S · indirect2,000—Form 4
Aug 3, 2025SLN10% ownerOpen-market saleCode S · indirect20,000—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.