Offerings // SES AI Corp

SES offering history

Every offering-related filing in SES AI Corp’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 480 filings back to Aug 7, 2020.

Last executed offering

Feb 28, 2025

424B5 — priced deal (shares or notes)

Last registration (announced)

Apr 24, 2026

S-3 — 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 5, 2026	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 24, 2026	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Feb 28, 2025	424B5 →	EXECUTED	Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 28, 2023	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Apr 28, 2023	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 25, 2023	RW →	WITHDRAWN	Registration withdrawn
Apr 25, 2023	S-3 →	REGISTERED	S-3 registration — capacity to sell shares, not a sale yet
Apr 24, 2023	S-3ASR →	REGISTERED	Automatic shelf registration — effective immediately (large filers)
Mar 17, 2023	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Mar 1, 2023	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Nov 14, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Aug 12, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jul 27, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
May 16, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Apr 27, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Apr 27, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Apr 12, 2022	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Feb 14, 2022	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet
Feb 4, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Jan 7, 2022	424B3 →	UPDATE	Prospectus update — often a resale registration, not necessarily new capital
Jan 7, 2022	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Oct 22, 2021	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jul 13, 2021	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Apr 14, 2021	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jan 11, 2021	8-K →	EXECUTED	Unregistered share sale disclosed (8-K item 3.02)
Jan 8, 2021	424B4 →	EXECUTED	Final prospectus — offering priced (typical for IPOs and marketed share deals)
Jan 6, 2021	S-1MEF →	REGISTERED	S-1MEF registration — capacity to sell shares, not a sale yet
Jan 6, 2021	EFFECT →	EFFECTIVE	SEC declared a registration effective — selling can begin
Dec 30, 2020	S-1/A →	REGISTERED	S-1/A registration — capacity to sell shares, not a sale yet
Dec 18, 2020	S-1 →	REGISTERED	S-1 registration — capacity to sell shares, not a sale yet

SES 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 SES workspace →

SES offering FAQ

When did SES last execute an offering?

Per SEC filings, SES AI Corp's most recent priced offering document is a 424B5 filed 2025-02-28. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did SES last announce or register an offering?

The most recent registration is a S-3 filed 2026-04-24. 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.