ESS Tech, Inc. — All Filings
430 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.
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10-K
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10-Q/A
144
25
3
3/A
4
4/A
424B2
424B3
424B4
424B5
424B8
425
8-A12B
8-K
8-K/A
ARS
CERT
CORRESP
D
DEF 14A
DEFA14A
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DRS
EFFECT
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S-3
S-3/A
S-4
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S-8
SC 13D
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SC 13G
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SCHEDULE 13G
SD
SEC STAFF LETTER
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| S-8 | S-8 | 0001819438-26-000015 | Mar 5, 2026 | — |
| 10-K | 10-K | 0001819438-26-000012 | Mar 5, 2026 | Dec 31, 2025 |
| 8-K | 8-K | 0001819438-26-000011 | Mar 5, 2026 | — |
| 4 | — | 0002083724-26-000003 | Feb 26, 2026 | Feb 20, 2026 |
| 4 | — | 0002056453-26-000003 | Feb 26, 2026 | Feb 20, 2026 |
| 4 | — | 0002083724-26-000002 | Feb 26, 2026 | Feb 13, 2026 |
| 4 | — | 0002056453-26-000002 | Feb 26, 2026 | Feb 13, 2026 |
| SCHEDULE 13G | — | 0001172661-26-001174 | Feb 17, 2026 | — |
| 8-K | 8-K | 0001628280-26-004263 | Jan 30, 2026 | Jan 29, 2026 |
| 424B5 | 424B5 | 0001628280-26-004261 | Jan 30, 2026 | — |
| 4 | FORM 4 | 0002106707-26-000004 | Jan 29, 2026 | Jan 28, 2026 |
| 3 | FORM 3 | 0002106707-26-000002 | Jan 29, 2026 | Jan 1, 2026 |
| 8-K | 8-K | 0001628280-26-003973 | Jan 29, 2026 | Jan 23, 2026 |
| 8-K | 8-K | 0001819438-26-000003 | Jan 6, 2026 | Jan 1, 2026 |
| EFFECT | — | 9999999995-25-003666 | Dec 11, 2025 | — |
| 424B3 | 424B3 | 0001628280-25-056592 | Dec 11, 2025 | — |
| 424B5 | 424B5 | 0001628280-25-056591 | Dec 11, 2025 | — |
| 8-K | 8-K | 0001819438-25-000079 | Dec 5, 2025 | Dec 4, 2025 |
| 4 | FORM 4 | 0002083724-25-000002 | Nov 21, 2025 | Nov 20, 2025 |
| 4 | FORM 4 | 0002056453-25-000005 | Nov 21, 2025 | Nov 20, 2025 |
| 8-K | 8-K | 0001819438-25-000077 | Nov 13, 2025 | — |
| S-3 | S-3 | 0001628280-25-052058 | Nov 13, 2025 | — |
| 8-K | 8-K | 0001628280-25-052045 | Nov 13, 2025 | — |
| 424B5 | 424B5 | 0001628280-25-052031 | Nov 13, 2025 | — |
| 10-Q | 10-Q | 0001819438-25-000076 | Nov 13, 2025 | Sep 30, 2025 |
| 424B2 | 424B2 | 0001819438-25-000072 | Oct 22, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000070 | Oct 17, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000068 | Oct 15, 2025 | — |
| 4 | FORM 4 | 0001377160-25-000005 | Oct 15, 2025 | Oct 13, 2025 |
| 4 | FORM 4 | 0001705428-25-000005 | Oct 15, 2025 | Oct 13, 2025 |
| 4 | FORM 4 | 0001685105-25-000005 | Oct 15, 2025 | Oct 13, 2025 |
| 4 | FORM 4 | 0001544911-25-000003 | Oct 15, 2025 | Oct 13, 2025 |
| 4 | FORM 4 | 0001549086-25-000004 | Oct 15, 2025 | Oct 13, 2025 |
| 4 | FORM 4 | 0001885330-25-000003 | Oct 15, 2025 | Oct 13, 2025 |
| 4 | FORM 4 | 0001884670-25-000003 | Oct 15, 2025 | Oct 13, 2025 |
| 8-K | 8-K | 0001819438-25-000065 | Oct 14, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000059 | Oct 14, 2025 | — |
| 8-K | 8-K | 0001819438-25-000057 | Oct 14, 2025 | Oct 13, 2025 |
| 424B2 | 424B2 | 0001819438-25-000055 | Oct 10, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000053 | Oct 9, 2025 | — |
| DEFA14A | DEFA14A | 0001819438-25-000051 | Oct 7, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000049 | Oct 7, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000047 | Sep 30, 2025 | — |
| 144 | — | 0001950047-25-007501 | Sep 25, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000045 | Sep 25, 2025 | — |
| ARS | ARS | 0001819438-25-000043 | Sep 22, 2025 | — |
| DEF 14A | DEF 14A | 0001819438-25-000041 | Sep 22, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000039 | Sep 19, 2025 | — |
| 144 | — | 0001950047-25-007243 | Sep 17, 2025 | — |
| 424B2 | 424B2 | 0001819438-25-000034 | Sep 16, 2025 | — |