# ESS Tech, Inc.: filings

GWHT · OTC · CIK 1819438 · [Technology](/sectors/technology.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/gwht.md) · [Financials](/companies/gwht/financials.md) · [Filings](/companies/gwht/filings.md) · [Insiders](/companies/gwht/insiders.md)

## Reports and events: 130 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 124, 8-K 80, 3 29, 425 22, 424B2 19, 10-Q 18, 424B3 16, CORRESP 15, SC 13G/A 12, EFFECT 10, UPLOAD 9, SC 13G 8, DEF 14A 7, 10-K 6, 424B5 6, DEFA14A 6, S-8 6, 144 5, ARS 4, PRE 14A 4, S-1 4, S-3 4, SD 4, NT 10-Q 3, S-1/A 3, S-4/A 3, SC 13D 3, SC 13D/A 3, SCHEDULE 13G/A 3, 10-K/A 2, 10-Q/A 2, 4/A 2, 8-A12B 2, 8-K/A 2, CERT 2, D 2, POS AM 2, SCHEDULE 13G 2, SEC STAFF LETTER 2, 25 1, 25-NSE 1, 3/A 1, 424B4 1, 424B8 1, DEFR14A 1, DRS 1, RW 1, S-3/A 1, S-4 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-05 | 12:39 ET | [8-K](/filings/0001819438-26-000088.md) | 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001819438-26-000088 |
| 2026-09-30 | 20:22 ET | [8-K](/filings/0001819438-26-000086.md) | 3.01 Delisting notice | 0001819438-26-000086 |
| 2026-09-24 | 20:11 ET | [DEF 14A](/filings/0001819438-26-000084.md) | Proxy statement, period 2026-09-24 | 0001819438-26-000084 |
| 2026-09-03 | 20:36 ET | [8-K](/filings/0001819438-26-000080.md) | 5.02 Departure or appointment of officers or directors | 0001819438-26-000080 |
| 2026-08-21 | 20:09 ET | [8-K](/filings/0001819438-26-000077.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001819438-26-000077 |
| 2026-08-11 | 20:21 ET | [10-Q](/filings/0001819438-26-000074.md) | Quarterly report, period 2026-06-30 | 0001819438-26-000074 |
| 2026-08-11 | 20:10 ET | [8-K](/filings/0001819438-26-000072.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001819438-26-000072 |
| 2026-08-06 | 12:36 ET | [8-K](/filings/0001819438-26-000067.md) | 2.02 Results of operations; 8.01 Other events | 0001819438-26-000067 |
| 2026-07-17 | 22:14 ET | [8-K](/filings/0001819438-26-000065.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001819438-26-000065 |
| 2026-07-01 | 20:15 ET | [8-K](/filings/0001819438-26-000056.md) | 3.01 Delisting notice | 0001819438-26-000056 |
| 2026-06-23 | 12:36 ET | [8-K](/filings/0001819438-26-000053.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001819438-26-000053 |
| 2026-06-18 | 21:27 ET | [8-K](/filings/0001819438-26-000049.md) | 5.02 Departure or appointment of officers or directors | 0001819438-26-000049 |
| 2026-06-15 | 12:59 ET | [8-K](/filings/0001819438-26-000044.md) | 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001819438-26-000044 |
| 2026-05-29 | 21:18 ET | [8-K](/filings/0001819438-26-000039.md) | 5.07 Shareholder vote results | 0001819438-26-000039 |
| 2026-05-07 | 20:31 ET | [10-Q](/filings/0001819438-26-000034.md) | Quarterly report, period 2026-03-31 | 0001819438-26-000034 |
| 2026-05-07 | 20:26 ET | [8-K](/filings/0001819438-26-000032.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001819438-26-000032 |
| 2026-04-15 | 20:06 ET | [DEF 14A](/filings/0001819438-26-000023.md) | Proxy statement, period 2025-12-31 | 0001819438-26-000023 |
| 2026-04-15 | 20:05 ET | [8-K](/filings/0001819438-26-000022.md) | 5.02 Departure or appointment of officers or directors | 0001819438-26-000022 |
| 2026-03-05 | 21:10 ET | [10-K](/filings/0001819438-26-000012.md) | Annual report, period 2025-12-31 | 0001819438-26-000012 |
| 2026-03-05 | 21:06 ET | [8-K](/filings/0001819438-26-000011.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001819438-26-000011 |
| 2026-01-30 | 02:49 ET | [8-K](/filings/0001628280-26-004263.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001628280-26-004263 |
| 2026-01-29 | 13:15 ET | [8-K](/filings/0001628280-26-003973.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-26-003973 |
| 2026-01-06 | 13:43 ET | [8-K](/filings/0001819438-26-000003.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001819438-26-000003 |
| 2025-12-05 | 21:18 ET | [8-K](/filings/0001819438-25-000079.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001819438-25-000079 |
| 2025-11-13 | 21:31 ET | [8-K](/filings/0001819438-25-000077.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001819438-25-000077 |
| 2025-11-13 | 21:14 ET | [8-K](/filings/0001628280-25-052045.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001628280-25-052045 |
| 2025-11-13 | 21:08 ET | [10-Q](/filings/0001819438-25-000076.md) | Quarterly report, period 2025-09-30 | 0001819438-25-000076 |
| 2025-10-14 | 13:00 ET | [8-K](/filings/0001819438-25-000065.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 9.01 Financial statements and exhibits | 0001819438-25-000065 |
| 2025-10-14 | 12:12 ET | [8-K](/filings/0001819438-25-000057.md) | 5.07 Shareholder vote results | 0001819438-25-000057 |
| 2025-09-22 | 20:11 ET | [DEF 14A](/filings/0001819438-25-000041.md) | Proxy statement, period 2025-09-22 | 0001819438-25-000041 |
| 2025-08-29 | 20:45 ET | [8-K](/filings/0001819438-25-000027.md) | 8.01 Other events | 0001819438-25-000027 |
| 2025-08-18 | 20:10 ET | [8-K](/filings/0001819438-25-000019.md) | 5.02 Departure or appointment of officers or directors | 0001819438-25-000019 |
| 2025-08-14 | 20:09 ET | [10-Q](/filings/0001819438-25-000014.md) | Quarterly report, period 2025-06-30 | 0001819438-25-000014 |
| 2025-08-14 | 20:04 ET | [8-K](/filings/0001819438-25-000012.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001819438-25-000012 |
| 2025-08-07 | 21:16 ET | [8-K](/filings/0001819438-25-000007.md) | 5.02 Departure or appointment of officers or directors | 0001819438-25-000007 |
| 2025-07-11 | 13:25 ET | [8-K](/filings/0001628280-25-034769.md) | 1.01 Entry into a material agreement; 2.01 Completion of an acquisition or disposition; 2.02 Results of operations; 2.03 New direct financial obligation; 3.02 Unregistered sale of equity; 8.01 Other events; 9.01 Financial statements and exhibits | 0001628280-25-034769 |
| 2025-06-04 | 01:35 ET | [8-K](/filings/0001628280-25-029215.md) | 8.01 Other events | 0001628280-25-029215 |
| 2025-05-28 | 01:01 ET | [8-K](/filings/0001628280-25-028027.md) | 8.01 Other events | 0001628280-25-028027 |
| 2025-05-15 | 21:02 ET | [10-Q](/filings/0001628280-25-026025.md) | Quarterly report, period 2025-03-31 | 0001628280-25-026025 |
| 2025-05-15 | 20:09 ET | [8-K](/filings/0001628280-25-025903.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-025903 |
| 2025-03-31 | 21:05 ET | [8-K](/filings/0001628280-25-015704.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001628280-25-015704 |
| 2025-03-31 | 20:09 ET | [10-K](/filings/0001628280-25-015649.md) | Annual report, period 2024-12-31 | 0001628280-25-015649 |
| 2025-03-31 | 20:07 ET | [8-K](/filings/0001628280-25-015647.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-25-015647 |
| 2025-03-28 | 20:38 ET | [8-K](/filings/0001628280-25-015467.md) | 3.01 Delisting notice; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001628280-25-015467 |
| 2025-02-14 | 23:32 ET | [8-K](/filings/0001628280-25-005510.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001628280-25-005510 |
| 2024-11-14 | 22:39 ET | [10-Q](/filings/0001628280-24-047692.md) | Quarterly report, period 2024-09-30 | 0001628280-24-047692 |
| 2024-11-13 | 21:00 ET | [8-K](/filings/0001628280-24-047577.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001628280-24-047577 |
| 2024-11-05 | 21:06 ET | [8-K](/filings/0001628280-24-045278.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation | 0001628280-24-045278 |
| 2024-11-01 | 22:15 ET | [SC 13D/A](/filings/0001628280-24-044795.md) | Ownership report, active investor, amended | 0001628280-24-044795 |
| 2024-08-26 | 00:30 ET | [8-K/A](/filings/0001628280-24-038379.md) | 5.07 Shareholder vote results | 0001628280-24-038379 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:15 ET. No prices; not investment advice.