TANTECH HOLDINGS LTD — All Filings
270 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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 |
|---|---|---|---|---|
| 6-K | FORM 6-K | 0001477932-26-001577 | Mar 25, 2026 | Mar 24, 2026 |
| 424B5 | 424B5 | 0001477932-26-001565 | Mar 25, 2026 | — |
| 6-K | FORM 6-K | 0001477932-26-001540 | Mar 23, 2026 | — |
| 3 | FORM 3 | 0001477932-26-001403 | Mar 17, 2026 | Jun 29, 2013 |
| 6-K | FORM 6-K | 0001477932-26-000231 | Jan 15, 2026 | — |
| 6-K | FORM 6-K | 0001477932-25-009264 | Dec 31, 2025 | — |
| 6-K | FORM 6-K | 0001477932-25-009067 | Dec 19, 2025 | Jun 30, 2025 |
| 6-K | FROM 6-K | 0001477932-25-008933 | Dec 11, 2025 | — |
| 6-K | FORM 6-K | 0001477932-25-007719 | Oct 24, 2025 | Oct 23, 2025 |
| 6-K | FORM 6-K | 0001477932-25-007636 | Oct 17, 2025 | — |
| 6-K | FORM 6-K | 0001477932-25-006998 | Sep 24, 2025 | — |
| 20-F/A | FORM 20-F/A | 0001477932-25-006862 | Sep 18, 2025 | Dec 31, 2024 |
| 6-K | FORM 6-K | 0001477932-25-004382 | Jun 3, 2025 | Jun 2, 2025 |
| 20-F | FORM 20-F | 0001477932-25-003802 | May 15, 2025 | Dec 31, 2024 |
| NT 20-F | NT 20-F | 0001477932-25-003196 | May 1, 2025 | Dec 31, 2024 |
| SCHEDULE 13G | — | 0001851416-25-000008 | Apr 21, 2025 | — |
| 6-K | FORM 6-K | 0001477932-25-001375 | Mar 3, 2025 | — |
| 6-K | FORM 6-K | 0001477932-25-000830 | Feb 10, 2025 | — |
| 6-K | FORM 6-K | 0001477932-25-000106 | Jan 8, 2025 | Jan 7, 2025 |
| 6-K | FORM 6-K | 0001477932-25-000049 | Jan 6, 2025 | — |
| 6-K | FORM 6-K | 0001477932-24-008438 | Jan 2, 2025 | Jun 30, 2024 |
| 6-K | FORM 8-K | 0001477932-24-008327 | Dec 27, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-008242 | Dec 20, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-008082 | Dec 16, 2024 | Dec 11, 2024 |
| SC 13G/A | AMENDMENT NO. 1 TO SCHEDULE 13G | 0001213900-24-097252 | Nov 13, 2024 | — |
| SC 13G/A | — | 0000921895-24-002490 | Nov 6, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-005646 | Sep 10, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-005353 | Aug 28, 2024 | — |
| 6-K/A | FORM 6-K/A | 0001477932-24-004409 | Jul 29, 2024 | — |
| 424B3 | 424B3 | 0001477932-24-004402 | Jul 26, 2024 | — |
| EFFECT | — | 9999999995-24-002281 | Jul 25, 2024 | — |
| CORRESP | — | 0001477932-24-004327 | Jul 23, 2024 | — |
| F-1/A | FORM F-1/A | 0001477932-24-004316 | Jul 22, 2024 | — |
| UPLOAD | — | 0000000000-24-008237 | Jul 22, 2024 | — |
| F-1 | FORM F-1 | 0001477932-24-004199 | Jul 12, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-003719 | Jun 17, 2024 | — |
| 20-F | FORM 20-F | 0001477932-24-003629 | Jun 11, 2024 | Dec 31, 2023 |
| 6-K | FORM 6-K | 0001477932-24-003206 | May 21, 2024 | — |
| SC 13G | SCHEDULE 13G | 0001213900-24-040939 | May 8, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-002587 | May 8, 2024 | — |
| SC 13G | — | 0000921895-24-001019 | May 3, 2024 | — |
| NT 20-F | NT 20-F | 0001477932-24-002456 | May 1, 2024 | Dec 31, 2023 |
| 6-K | FORM 6-K | 0001477932-24-002335 | Apr 26, 2024 | Apr 24, 2024 |
| 6-K | FORM 6-K | 0001477932-24-001324 | Mar 19, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-000962 | Feb 29, 2024 | Feb 28, 2024 |
| 6-K | FORM 6-K | 0001477932-24-000197 | Jan 16, 2024 | — |
| 6-K | FORM 6-K | 0001477932-24-000012 | Jan 2, 2024 | — |
| 6-K | FORM 6-K | 0001477932-23-008962 | Dec 5, 2023 | Jun 30, 2023 |
| 6-K | FORM 6-K | 0001477932-23-008690 | Nov 20, 2023 | Nov 17, 2023 |
| 6-K | FORM 6-K | 0001477932-23-007830 | Oct 24, 2023 | — |