TANH offering history
Every offering-related filing in TANTECH HOLDINGS LTD’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 288 filings back to Sep 30, 2013.
| Date | Filing | What it means | |
|---|---|---|---|
| Jun 17, 2026 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Jun 9, 2026 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Apr 2, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 25, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jul 26, 2024 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Jul 25, 2024 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Jul 22, 2024 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jul 12, 2024 | F-1 → | REGISTERED | F-1 registration — capacity to sell shares, not a sale yet |
| Sep 11, 2023 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Aug 30, 2023 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Jun 30, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 28, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 18, 2022 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 16, 2022 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 6, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 2, 2021 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 28, 2020 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Dec 23, 2020 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Dec 18, 2020 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Nov 24, 2020 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 31, 2020 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Aug 20, 2020 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Aug 4, 2020 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Sep 27, 2017 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Mar 9, 2017 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Mar 2, 2017 | RW → | WITHDRAWN | Registration withdrawn |
| Feb 27, 2017 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Feb 9, 2017 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Sep 12, 2016 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Sep 2, 2016 | F-3/A → | REGISTERED | F-3/A registration — capacity to sell shares, not a sale yet |
| Aug 22, 2016 | F-3 → | REGISTERED | F-3 registration — capacity to sell shares, not a sale yet |
| Mar 27, 2015 | 424B1 → | EXECUTED | Prospectus supplement priced — shares or notes (large filers: often a bond deal) |
| Mar 18, 2015 | EFFECT → | EFFECTIVE | SEC declared a registration effective — selling can begin |
| Mar 16, 2015 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Mar 16, 2015 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Mar 4, 2015 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Feb 11, 2015 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Feb 6, 2015 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Jan 21, 2015 | F-1/A → | REGISTERED | F-1/A registration — capacity to sell shares, not a sale yet |
| Dec 15, 2014 | F-1/A → | REGISTERED | F-1/A 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.
TANH offering FAQ
When did TANH last execute an offering?
Per SEC filings, TANTECH HOLDINGS LTD's most recent priced offering document is a 424B5 filed 2026-04-02. Note a 424B takedown can price shares or notes (debt) — the linked document says which.
When did TANH last announce or register an offering?
The most recent registration is a F-3 filed 2026-06-09. 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.