Offerings // CENTURY ALUMINUM CO

CENX offering history

Every offering-related filing in CENTURY ALUMINUM CO’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,000 filings back to Mar 3, 2010.

Last executed offering

Apr 12, 2021

8-K — priced deal (shares or notes)

Last registration (announced)

May 12, 2023

S-3/A — capacity, not a sale

Executed, last 12 months

424B pricings + 8-K 3.02 sales

Registered, last 12 months

S-1/S-3/F-series registrations

Date	Filing		What it means
Jun 9, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 12, 2023	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Mar 17, 2023	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
May 20, 2022	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Apr 12, 2021	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
May 9, 2019	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
May 7, 2019	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Mar 1, 2019	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Jul 28, 2017	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Mar 8, 2017	RW →	WITHDRAWN	Registration withdrawn
May 5, 2016	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 7, 2016	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Mar 4, 2016	AW →	WITHDRAWN	Registration withdrawn
Feb 16, 2016	S-3/A →	REGISTERED	S-3/A registration — capacity to sell shares, not a sale yet
Nov 7, 2014	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)

CENX offering-related filings from SEC EDGAR, newest first (capped at 40). Each links to the original document.

Two honest limits. (1) A 424B takedown can price shares or notes — EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.

Is a shelf active now? →Do they need money? →Red flags →Full CENX workspace →

CENX offering FAQ

When did CENX last execute an offering?

Per SEC filings, CENTURY ALUMINUM CO's most recent priced offering document is a 8-K filed 2021-04-12. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did CENX last announce or register an offering?

The most recent registration is a S-3/A filed 2023-05-12. A registration is capacity to sell shares — not a sale.

Does an offering always mean dilution?

Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.