Companies: 10,795·Total market cap: $144.5T
ESS Tech, Inc.

ESS Tech, Inc.

GWHNYSEIndustrials● Active
$0.86
$-0.05(-5.44%)
Market Cap$10797492
P/E Ratio
52W High$13.87
52W Low$0.565
SEC Filings

ESS Tech, Inc. (GWH) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001819438 · GWH · NYSE · as of Jun 8, 2026

Filing snapshot

448
Total Filings
4
Latest Form
2026-06-02
Most Recent
2021
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0001819438 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-03-05
Fiscal Year End
Mar 5, 2026
Accession No.
0001819438-26-000012
Primary Document
ghw-20251231.htm
Source: data.sec.gov · CIK 0001819438 · Accession 0001819438-26-000012

Latest Key Filings

10-QQuarterly Report
10-Q
2026-05-07
8-KCurrent Report
8-K
2026-05-29Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
SDSD
SD
2026-06-01
View
8-KCurrent Report
8-K
2026-05-29
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-05-15
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-05-11
View
10-QQuarterly Report
10-Q
2026-05-07
View
8-KCurrent Report
8-K
2026-05-07
View
ARSARS
ARS
2026-04-15
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-15
View
DEF 14AProxy Statement
DEF 14A
2026-04-15
View
8-KCurrent Report
8-K
2026-04-15
View
S-8Employee Stock Plan Registration
S-8
2026-03-05
View
10-KAnnual Report
10-K
2026-03-05
View
8-KCurrent Report
8-K
2026-03-05
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-02-17
View
8-KCurrent Report
8-K
2026-01-30
View
Showing 1–15 of 319 filingsForm 4 / 144 hidden· 448 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001819438  |  Exchange: NYSE · Industrials

ESS Tech, Inc. (NYSE: GWH) has submitted 448 documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2021. As a Industrials sector company with CIK 0001819438, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is ESS Tech, Inc.'s most comprehensive regulatory disclosure. The most recent ESS Tech, Inc. 10-K was filed on 2026-03-05 for fiscal year ending 2026. Historical GWH 10-K annual reports are available from 2020 through 2026.

Investors researching ESS Tech, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08

Frequently Asked Questions

GWH SEC Filings · 8 questions

ESS Tech, Inc. (GWH) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 448 filings and access original documents at no cost. ESS Tech, Inc.'s CIK is 0001819438.

GWH SEC filingsESS Tech, Inc. SEC documentsfind GWH 10-K