AMBO offering history
Every offering-related filing in Ambow Education Holding Ltd.’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 303 filings back to Jul 14, 2010.
| Date | Filing | What it means | |
|---|---|---|---|
| Aug 11, 2026 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Jul 24, 2026 | S-3 → | REGISTERED | S-3 registration — capacity to sell shares, not a sale yet |
| Dec 1, 2025 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Oct 22, 2025 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Nov 22, 2022 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Nov 10, 2022 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Oct 14, 2022 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Sep 14, 2022 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Aug 12, 2022 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Jun 14, 2022 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| May 12, 2022 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Oct 5, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| May 17, 2019 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| May 8, 2019 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Jun 1, 2018 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| May 31, 2018 | F-1MEF → | REGISTERED | F-1MEF registration — capacity to sell shares, not a sale yet |
| May 31, 2018 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| May 9, 2018 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Apr 18, 2018 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Apr 3, 2018 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Mar 23, 2018 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Mar 9, 2018 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jan 22, 2018 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jan 5, 2018 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Dec 19, 2017 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Nov 9, 2017 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Aug 28, 2017 | F-1 → | REGISTERED | F-1 registration — capacity to sell shares, not a sale yet |
| Aug 5, 2010 | 424B4 → | EXECUTED | Final prospectus — offering priced (typical for IPOs and marketed share deals) |
| Aug 4, 2010 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Aug 4, 2010 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Jul 30, 2010 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jul 20, 2010 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jul 19, 2010 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jul 14, 2010 | F-1 → | REGISTERED | F-1 registration — capacity to sell shares, not a sale yet |
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.
AMBO offering FAQ
When did AMBO last execute an offering?
Per SEC filings, Ambow Education Holding Ltd.'s most recent priced offering document is a 424B5 filed 2020-10-05. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did AMBO last announce or register an offering?
The most recent registration is a S-3 filed 2026-07-24. 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.
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