GWH

ESS Tech, Inc.
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Company Information

Company Name
ESS Tech, Inc.
CIK
CIK0001819438
Category
Non-accelerated filer<br>Smaller reporting company
Ticker: Exchange
GWH: NYSE, GWHWW: OTC
Fiscal Year End
December 31
Owner Organization
04 Manufacturing
SIC
3690
SIC Description
Miscellaneous Electrical Machinery, Equipment & Supplies
Ticker
GWH

SEC filing data through

Insider Sentiment

Last purchase
2026-06-04
Last sale
2026-08-21
Shares purchased (TTM)
25,000
Shares sold (TTM)
17,010
Buy ratio (TTM)59.5%

Institutional Sentiment

As of
2026-06-30
Institutional shares owned
7,289,380
Shares outstanding
33,824,896
Ownership
21.55%
-2.23% Y/Y

Earnings Market Reaction

Filing date
2026-08-11
Price on filing date
—
1-month reaction
-47.22%
3-month reaction
…
Drift continued5/11 (45%)
Faded / reversed6/11 (55%)

Balance Sheet

Values in millions ($)
Line item2026-06-302026-03-312025-12-312025-09-302025-06-302025-03-312024-12-312024-09-302024-06-302024-03-312023-12-312023-09-30Subscriber-only columnSubscriber-only columnSubscriber-only columnSubscriber-only columnSubscriber-only columnTrend
Nonrelated Party-----4000045
Related Party----784000040
Assets Current
Cash And Cash Equivalents At Carrying Value111514418131337362037
Restricted Cash And Cash Equivalents At Carrying Value111111111111
Accounts Receivable Net Current000000001121
Trading Securities Debt068004184238538887
Inventory Net000557674332
Prepaid Expense And Other Assets Current223253554432
Assets Current14252612112443698598118131
Property Plant And Equipment Net121617182223212018171618
Intangible Assets Net Excluding Goodwill333455555555
Operating Lease Right Of Use Asset334011222222
Restricted Cash And Cash Equivalents Noncurrent111111111111
Other Assets Noncurrent111111111111
Assets3249513640547297111124143159
Liabilities Current
Accounts Payable Current113911108116333
Product Warranty Accrual Classified Current111222333323
Operating Lease Liability Current222011222222
Contract With Customer Liability Current000111566631
Notes Payable Current----------00
Finance Lease Liability Current6982--0-----
Liabilities Current202325242422283226202019
Operating Lease Liability Noncurrent122---001111
Long Term Debt Noncurrent----------00
Contract With Customer Liability Noncurrent55551218141414141820
Finance Lease Liability Noncurrent9998--0-----
Other Liabilities Noncurrent00000000--00
Liabilities353943383642434742364042
Stockholders Equity
Preferred Stock Value000000000000
Common Stock Value000000000000
Additional Paid In Capital875871854820815812811808805802800796
Retained Earnings Accumulated Deficit-877-862-846-822-811-800-782-759-736-714-696-680
Stockholders Equity-399-231229496988103116
Liabilities And Stockholders Equity3249513640547297111124143159
Preferred Stock Par Or Stated Value Per Share0.000.000.000.000.000.000.000.000.000.000.000.00
Preferred Stock Shares Authorized200200200200200200200200200200200200
Preferred Stock Shares Outstanding000000000000
Preferred Stock Shares Issued000000000000
Common Stock Par Or Stated Value Per Share0.000.000.000.000.000.000.000.000.000.000.000.00
Common Stock Shares Authorized1,0001,0001,0001,0001,0001,0001,0002,0002,0002,0001,0002,000
Common Stock Shares Issued332822151312121212121212
Shares Outstanding332822151312121212121212

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ESS Tech, Inc. (GWH) — SEC Financial Statements & Analysis

ESS Tech, Inc. (GWH) is a miscellaneous electrical machinery, equipment & supplies company, incorporated in DE. ESS Tech, Inc. trades on NYSE, OTC as: GWH, GWHWW. ESS Tech, Inc. (GWH)'s most recent SEC filing is a Form 10-Q for the period ended 2026-06-30, filed with the SEC on 2026-08-11. Based on that filing, ESS Tech, Inc. carries a market cap of $32.13M, a P/E ratio of -0.49x, a P/B ratio of -11.96x, a P/S ratio of -27.39x, an enterprise value of $34.04M, and an EV/EBITDA multiple of -0.67x. On profitability, it posts a gross margin of 2462.32%, an operating margin of 4826.77%, a net margin of 5612.36%, a Return on Equity (ROE) of -21339.71%, a Return on Assets (ROA) of -182.63%, and a Return on Invested Capital (ROIC) of -865.38%. Per share, it reports EPS of $-1.95, diluted EPS of $-1.95, free cash flow per share of $-1.37, and a dividend per share of $0.00. Over the trailing year, it posted revenue growth of -119.02% year-over-year, net income growth of -12.29% year-over-year, and EPS growth of -68.18% year-over-year. On the balance sheet, it maintains a current ratio of 0.68x, a quick ratio of 0.58x, working capital of $-6.41M, a debt-to-equity ratio of -13.09x, a debt ratio of 1.08, an interest coverage ratio of -6.44x, free cash flow of $-46.25M (TTM), and net debt of $1.91M. Figures sourced from SEC EDGAR.

Market Cap
$32.13M
P/E TTM
-0.49x
EPS TTM
$-1.95
P/B TTM
-11.96x
ROE TTM
-21339.71%
ROA TTM
-182.63%
Debt To Equity
-13.09x
Free Cash Flow TTM
$-46.25M
Net Revenue TTM Growth 1Y
-119.02%

Data as of 2026-06-30 · Source: SEC EDGAR

Frequently Asked Questions

What industry is ESS Tech, Inc. in?

ESS Tech, Inc. (GWH) operates in the Miscellaneous Electrical Machinery, Equipment & Supplies industry.

What exchange does GWH trade on?

ESS Tech, Inc. (GWH) trades on the NYSE, OTC.

Where is ESS Tech, Inc. incorporated?

ESS Tech, Inc. is incorporated in DE.

When was ESS Tech, Inc. (GWH)'s most recent SEC filing?

ESS Tech, Inc. (GWH)'s most recent SEC filing is a Form 10-Q for the period ended 2026-06-30, filed with the SEC on 2026-08-11.

What is GWH's market cap?

ESS Tech, Inc. (GWH) has a market capitalization of $32.13M as of 2026-06-30.

What is GWH's EPS (earnings per share)?

ESS Tech, Inc. (GWH)'s trailing twelve month EPS is $-1.95 as of 2026-06-30.

What is GWH's ROE (return on equity)?

ESS Tech, Inc. (GWH)'s trailing twelve month Return on Equity (ROE) is -21339.71% as of 2026-06-30.

What is GWH's ROA (return on assets)?

ESS Tech, Inc. (GWH)'s trailing twelve month Return on Assets (ROA) is -182.63% as of 2026-06-30.

What is GWH's ROIC (return on invested capital)?

ESS Tech, Inc. (GWH)'s trailing twelve month Return on Invested Capital (ROIC) is -865.38% as of 2026-03-31.

What is GWH's EV/EBITDA?

ESS Tech, Inc. (GWH)'s trailing twelve month EV/EBITDA is -0.67x as of 2026-06-30.

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