Technology · NYSE · AI-powered stock analysis, 32-signal quality score, SEC EDGAR financials, and institutional holdings. Updated .
ESS Tech, Inc. (GWH) stock profile, AI quality score, and SEC EDGAR financial data, a Technology sector company. 13F Pro's AI-powered ranking engine scores GWH at 9.6/100 on a 32-signal composite quality model, placing it at rank #2,915 of 2,962 stocks — the bottom half of the AI-ranked universe. Based on the latest XBRL financial filings (Q2 2026), ESS Tech, Inc. reports quarterly revenue of $73.0K, net income of $-15.6M, free cash flow of $-9.4M. Top institutional holders of GWH by reported 13-F value include SOFTBANK GROUP, Alyeska Investment Group, L.P., VANGUARD CAPITAL MANAGEMENT, based on the most recent SEC filings. GWH trades on the NYSE exchange and files with the SEC under CIK 1819438. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate GWH daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for ESS Tech, Inc. directly from SEC EDGAR.
AI Quality Score
9.6/100
AI Rank
#2,915
Revenue
$73.0K
Net Income
$-15.6M
Free Cash Flow
$-9.4M
| Period | Form | Revenue | Net income | Operating margin |
|---|---|---|---|---|
| FY 2025 | 10-K | $1.6M | $-63.4M | — |
| FY 2024 | 10-K | $6.3M | $-86.2M | — |
| FY 2023 | 10-K | $7.5M | $-77.6M | — |
| FY 2022 | 10-K | $894.0K | $-78.0M | — |
| Institution | Shares | Value | Reported |
|---|---|---|---|
| SOFTBANK GROUP | 2,396,980 | $2.3M | 2026-06-30 |
| Alyeska Investment Group, L.P. | 1,400,000 | $1.3M | 2026-06-30 |
| VANGUARD CAPITAL MANAGEMENT | 638,920 | $607.0K | 2026-06-30 |
| UBS Group AG | 602,607 | $572.5K | 2026-06-30 |
| Arosa Capital Management | 550,000 | $522.5K | 2026-06-30 |
| HEIGHTS CAPITAL MANAGEMENT | 548,621 | $521.2K | 2026-06-30 |
| Shay Capital | 210,146 | $199.6K | 2026-06-30 |
| GEODE CAPITAL MANAGEMENT | 210,037 | $199.5K | 2026-06-30 |
| BlackRock | 133,867 | $127.2K | 2026-06-30 |
| VANGUARD FIDUCIARY | 129,877 | $123.4K | 2026-06-30 |
13F Pro Quality Score
Rank #2,915 of 2,962 stocks
Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Nov 14, 2026.