Offerings // Sanofi

SNY offering history

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

Last executed offering

Oct 29, 2025

424B5 — priced deal (shares or notes)

Last registration (announced)

Apr 4, 2024

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
Oct 29, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 28, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 28, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 28, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 28, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 28, 2025	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Oct 27, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 4, 2024	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Jul 30, 2021	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
May 26, 2020	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Jun 14, 2018	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 13, 2018	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Jun 13, 2018	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Jun 12, 2018	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 15, 2016	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Mar 24, 2014	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Apr 5, 2013	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 3, 2013	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 3, 2013	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 11, 2013	F-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Sep 28, 2011	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 27, 2011	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 27, 2011	FWP →	MARKETING	Free-writing prospectus — offering being marketed
May 9, 2011	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 30, 2011	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 29, 2011	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Mar 24, 2011	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 23, 2011	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 23, 2011	FWP →	MARKETING	Free-writing prospectus — offering being marketed
Mar 22, 2011	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)

SNY 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 SNY workspace →

SNY offering FAQ

When did SNY last execute an offering?

Per SEC filings, Sanofi's most recent priced offering document is a 424B5 filed 2025-10-29. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did SNY last announce or register an offering?

The most recent registration is a F-3ASR filed 2024-04-04. 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.