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 Agust F. Hafberg.

Business address: Century Aluminum Company, 1 S. Wacker Drive, Suite 1000, Chicago, IL, 60606
Top holdings (ownership): CENX

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Agust F. Hafberg has filed 7 SEC EDGAR filings since 26 Dec 2024

Recent SEC filings for Agust F. Hafberg including 4, 144, 3.

Form type	Document	Filing	Description	Filing date	Reporting date	File number(s)
4	Open 4 document	View SEC filing for 4	FORM 4	03 Mar 2026	27 Feb 2026	001-34474
144	Open 144 document	View SEC filing for 144		25 Feb 2026
4	Open 4 document	View SEC filing for 4	FORM 4	05 Jan 2026	31 Dec 2025	001-34474
4	Open 4 document	View SEC filing for 4	FORM 4	30 Sep 2025	26 Sep 2025	001-34474
144	Open 144 document	View SEC filing for 144		25 Sep 2025
4	Open 4 document	View SEC filing for 4	FORM 4	03 Jan 2025	31 Dec 2024	001-34474
3	Open 3 document	View SEC filing for 3	FORM 3	26 Dec 2024	10 Dec 2024	001-34474

Agust F. Hafberg files with the SEC under CIK 0002049924. 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.