ESS Tech GWHT SEC Filings

OTC GWHT
$0.07 -0.01 (-12.50%)
At close: Oct 23, 2026 · 4:00 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing ESS Tech, Inc. (GWHT) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
18-KCurrent Report0001819438-26-000088Oct 5, 2026 8:39 AM
28-KCurrent Report0001819438-26-000086Sep 30, 2026 4:22 PM
3DEF 14AOthers0001819438-26-000084Sep 24, 2026 8:11 PM
4EFFECTOthers9999999995-26-002983Sep 16, 2026 4:15 AM
5424B3Prospectus0001628280-26-062290Sep 16, 2026 8:47 PM
6PRE 14AOthers0001819438-26-000082Sep 15, 2026 9:58 PM
7S-3Prospectus0001628280-26-060945Sep 8, 2026 5:27 PM
88-KCurrent Report0001819438-26-000080Sep 3, 2026 8:36 PM
94Insider Transaction0002083724-26-000005Aug 24, 2026 8:10 PM
104Insider Transaction0002056453-26-000005Aug 24, 2026 8:08 PM
118-KCurrent Report0001819438-26-000077Aug 21, 2026 8:09 PM
12424B5Prospectus0001819438-26-000075Aug 21, 2026 1:50 AM
1310-QQuarterly & Annual Report0001819438-26-000074Aug 11, 2026 4:21 PM
148-KCurrent Report0001819438-26-000072Aug 11, 2026 4:10 PM
158-KCurrent Report0001819438-26-000067Aug 6, 2026 12:36 PM
168-KCurrent Report0001819438-26-000065Jul 17, 2026 10:14 PM
17424B5Prospectus0001819438-26-000064Jul 17, 2026 10:13 PM
1825-NSEOthers0000876661-26-000595Jul 2, 2026 6:16 PM
198-KCurrent Report0001819438-26-000056Jul 1, 2026 8:15 PM
208-KCurrent Report0001819438-26-000053Jun 23, 2026 12:36 PM
218-KCurrent Report0001819438-26-000049Jun 18, 2026 9:27 PM
228-KCurrent Report0001819438-26-000044Jun 15, 2026 12:59 PM
234Insider Transaction0002106707-26-000006Jun 8, 2026 9:40 PM
244Insider Transaction0001705428-26-000002Jun 2, 2026 10:11 PM
254Insider Transaction0001685105-26-000002Jun 2, 2026 10:10 PM
264Insider Transaction0001544911-26-000002Jun 2, 2026 10:08 PM
274Insider Transaction0001885330-26-000002Jun 2, 2026 10:07 PM
284Insider Transaction0001549086-26-000002Jun 2, 2026 10:07 PM
29SDOthers0001819438-26-000041Jun 1, 2026 9:33 PM
308-KCurrent Report0001819438-26-000039May 29, 2026 9:18 PM
31SCHEDULE 13GBeneficial Ownership Report0001172661-26-002362May 15, 2026 8:33 PM
32SCHEDULE 13GBeneficial Ownership Report0001493152-26-022318May 11, 2026 9:58 PM
33SCHEDULE 13GBeneficial Ownership Report0001493152-26-022318May 11, 2026 9:58 PM
3410-QQuarterly & Annual Report0001819438-26-000034May 7, 2026 8:31 PM
3510-QQuarterly & Annual Report0001819438-26-000034May 7, 2026 8:31 PM
368-KCurrent Report0001819438-26-000032May 7, 2026 8:26 PM
378-KCurrent Report0001819438-26-000032May 7, 2026 8:26 PM
38ARSOthers0001819438-26-000025Apr 15, 2026 8:08 PM
39DEFA14AOthers0001819438-26-000024Apr 15, 2026 8:07 PM
40DEF 14AOthers0001819438-26-000023Apr 15, 2026 8:06 PM
418-KCurrent Report0001819438-26-000022Apr 15, 2026 8:05 PM
42S-8Prospectus0001819438-26-000015Mar 5, 2026 9:18 PM
4310-KQuarterly & Annual Report0001819438-26-000012Mar 5, 2026 9:10 PM
448-KCurrent Report0001819438-26-000011Mar 5, 2026 9:06 PM
454Insider Transaction0002083724-26-000003Feb 26, 2026 2:45 AM
464Insider Transaction0002083724-26-000003Feb 26, 2026 2:45 AM
474Insider Transaction0002083724-26-000003Feb 26, 2026 2:45 AM
484Insider Transaction0002056453-26-000003Feb 26, 2026 2:44 AM
494Insider Transaction0002056453-26-000003Feb 26, 2026 2:44 AM
504Insider Transaction0002056453-26-000003Feb 26, 2026 2:44 AM
...

ESS Tech, Inc. SEC Filings API

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