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ESS TECH INC (GWH)

Institutional ownership, SEC filings and insider activity

Sector: Industry · SEC CIK 0001819438 · EDGAR filings · Updated 2026-07-17

ESS TECH INC (GWH) has reported institutional ownership of 28.0%, with 51 institutional managers holding positions valued at $8.90M per the latest 13F reporting period. SEC filings include an active non-reliance notice on previously issued financial statements (8-K Item 4.02), notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), substantial-doubt (going concern) disclosure per the filings.

Institutional ownership
28.0%
Institutional managers
51
Reported 13F value
$8.90M
Insider activity
30 trans.
−$4.63K net selling
Data flags
3 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, ESS TECH INC has 51 institutional holders and institutional ownership of 28.0%.

Insider activity

Insiders reported 30 transactions (0 buys, 2 sells) across 11 reporting insiders, with a net reported value of −$4.63K.

Data flags from SEC filings

Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2026-07-01 (recurring since 2021-09-28) — source filing. The authoritative details are those stated in the filing itself.
Active substantial-doubt (going concern) disclosure per the filings, most recently filed 2026-05-07 (recurring since 2021-03-31) — source filing. The authoritative details are those stated in the filing itself.
Active non-reliance notice on previously issued financial statements (8-K Item 4.02), most recently filed 2021-11-22 (recurring since 2021-05-24) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile
Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-17.