TANTECH HOLDINGS LTD — 424B5 Filings
9 424B5 filings on record
This page lists all 424B5 filings submitted to the SEC by TANTECH HOLDINGS LTD (TANH), sorted by most recent first. Each row links to the full filing on EdgarLookup. TANTECH HOLDINGS LTD has filed 9 424B5 documents with the SEC since 2013. To view all SEC filings by TANTECH HOLDINGS LTD, see the full filings list.
All
144
20-F
20-F/A
3
424B1
424B3
424B5
6-K
6-K/A
8-A12B
CERTNAS
CORRESP
D
DRS
DRS/A
DRSLTR
EFFECT
F-1
F-1/A
F-3
F-3/A
NT 20-F
POS AM
RW
RW WD
S-8
SC 13D
SC 13G
SC 13G/A
SCHEDULE 13G
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 424B5 | 424B5 | 0001477932-26-001565 | Mar 25, 2026 | — |
| 424B5 | 424B5 | 0001477932-23-004955 | Jun 30, 2023 | — |
| 424B5 | 424B5 | 0001477932-23-004879 | Jun 28, 2023 | — |
| 424B5 | 424B5 | 0001104659-22-035227 | Mar 18, 2022 | — |
| 424B5 | 424B5 | 0001104659-22-034170 | Mar 16, 2022 | — |
| 424B5 | 424B5 | 0001104659-21-146863 | Dec 6, 2021 | — |
| 424B5 | 424B5 | 0001104659-21-145630 | Dec 2, 2021 | — |
| 424B5 | 424B5 | 0001104659-20-128746 | Nov 24, 2020 | — |
| 424B5 | 424B5 | 0001144204-17-049901 | Sep 27, 2017 | — |