A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.

Why are some filings missing?

New filings appear as the SEC updates EDGAR, and older records can vary by availability.

How often is this page updated?

Updates follow new EDGAR submissions and periodic data refreshes.

SEC EDGAR filings, ownership reports, and insider transactions for Marta Amusategui Vergara.

Business address: Ferroglobe Plc, The Scalpel, 18 Th Floor, 52 Lime Street, London, EC3M 7AF
Top holdings (ownership): GSM

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Marta Amusategui Vergara has filed 1 SEC EDGAR filings since 18 Mar 2026

Recent SEC filings for Marta Amusategui Vergara including 3.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
3	Open 3 document	View SEC filing for 3	OWNERSHIP DOCUMENT	18 Mar 2026	18 Mar 2026	001-37668

Marta Amusategui Vergara files with the SEC under CIK 0002116946. This page aggregates EDGAR filings and related ownership activity.

What is a CIK?: A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?: New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?: Updates follow new EDGAR submissions and periodic data refreshes.