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Data sourced from SEC EDGAR 13F filings. Updated quarterly.

Disclaimer: QW Research is provided for informational and educational purposes only and is not investment advice, a recommendation, or an offer to buy or sell any security. Data is derived from public SEC 13F filings and may be incomplete, delayed, or inaccurate. Do not make investment decisions based on this content. QW Research does not share in any profits and accepts no liability for any losses or decisions made using this information. Past performance does not predict future results.

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ESS Tech, Inc. WT (GWH-WT)

Distributing

Institutional distribution: ownership decreased -2.19% quarter-over-quarter.

Data as of Q1 2026

Institutional Ownership

8.06%

QoQ Change

-2.19%

Total Value

$44.7M

Shares Outstanding

27.2M

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Institutional Holders

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Institutional Trends (8 Quarters)

Crowding AnalysisModerate

Holders13of 5,944

Avg: 68

Uncrowded72th percentileCrowded