Offerings // LyondellBasell Industries N.V.

LYB offering history

Every offering-related filing in LyondellBasell Industries N.V.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,005 filings back to Jul 5, 2017.

Last executed offering

Nov 12, 2025

424B5 — priced deal (shares or notes)

Last registration (announced)

Dec 12, 2024

S-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
Nov 12, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Nov 10, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 10, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 7, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 6, 2025	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 6, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Dec 12, 2024	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Feb 27, 2024	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Feb 26, 2024	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Feb 26, 2024	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 18, 2023	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 17, 2023	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 17, 2023	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Dec 14, 2021	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Oct 8, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 7, 2020	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 6, 2020	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Apr 17, 2020	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 15, 2020	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Apr 15, 2020	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Sep 30, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 26, 2019	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 26, 2019	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Sep 12, 2019	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 10, 2019	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Sep 10, 2019	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Feb 22, 2019	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)

LYB 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 LYB workspace →

LYB offering FAQ

When did LYB last execute an offering?

Per SEC filings, LyondellBasell Industries N.V.'s most recent priced offering document is a 424B5 filed 2025-11-12. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did LYB last announce or register an offering?

The most recent registration is a S-3ASR filed 2024-12-12. 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.