Offerings // RIO TINTO PLC

RIO offering history

Every offering-related filing in RIO TINTO PLC’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,002 filings back to Feb 6, 2008.

Last executed offering

Mar 13, 2025

424B5 — priced deal (shares or notes)

Last registration (announced)

May 7, 2026

F-3ASR — 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
May 7, 2026	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Mar 27, 2025	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 13, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 12, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 10, 2025	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
May 5, 2023	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Mar 8, 2023	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Mar 7, 2023	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 7, 2023	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 6, 2023	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Oct 29, 2021	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 28, 2021	424B2 →	EXECUTED	Prospectus supplement priced — shares or notes (large filers: often a bond deal)
Oct 28, 2021	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 21, 2020	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
May 20, 2020	RW →	WITHDRAWN	Registration withdrawn
May 15, 2020	RW →	WITHDRAWN	Registration withdrawn
May 6, 2020	F-3 →	REGISTERED	F-3 registration — capacity to sell shares, not a sale yet
May 8, 2017	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Jun 12, 2015	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 11, 2015	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 11, 2015	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 6, 2015	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Jun 12, 2014	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Apr 23, 2014	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 17, 2013	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 14, 2013	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 14, 2013	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Aug 17, 2012	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Aug 17, 2012	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 16, 2012	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 20, 2012	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 20, 2012	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 19, 2012	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 15, 2011	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Sep 15, 2011	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 14, 2011	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jun 21, 2011	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
May 19, 2011	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 18, 2011	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 17, 2011	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital

RIO 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 RIO workspace →

RIO offering FAQ

When did RIO last execute an offering?

Per SEC filings, RIO TINTO PLC's most recent priced offering document is a 424B5 filed 2025-03-13. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did RIO last announce or register an offering?

The most recent registration is a F-3ASR filed 2026-05-07. 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.

Free to use. No account, no card.