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Livermore
Livermore
ZHEN

ESS Tech, Inc.

GWH
Exchange
NYSE
Industry
Miscellaneous Electrical Machinery, Equipment & Supplies
SEC CIK
0001819438

In the last 90 days, ESS Tech, Inc. insiders filed 0 open-market purchases and 2 sales; 47 institutions reported holding it in 13F filings for Q2 2026, worth $6.94M in total; no superinvestor holds it.

Other share classesGWHWW

Q2 2026 vs. Q1 2026

How the institutions holding ESS Tech, Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026All holders in Q1 2026

13F holders of GWH: Q1 2026 compared with Q2 2026
MeasureQ1 2026Of which not filed for Q2 2026Q2 2026Change
Holders51147−3
Shares7.61M67.30M−308.7K (−4.1%)
Value$8.90M$7$6.94M−$1.96M (−22.1%)

1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (5)

Institutions that held ESS Tech, Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to GWH in Q2 2026
InstitutionSharesValue% of portfolio
PKS Advisory Services, LLC24,000$22.8K0.00%
Renaissance Technologies LLC12,700$12.1K0.00%
Barclays PLC639$6070.00%
Global Retirement Partners, LLC366$3480.00%
Larson Financial Group LLC20$190.00%

Sold out (8)

Institutions that held ESS Tech, Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of GWH in Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
Virtu Financial LLC18,679$22.0K
Two Sigma Securities, LLC16,592$19.4K
Resurgent Financial Advisors LLC15,606$18.3K
LPL Financial LLC14,429$16.9K
Missouri Trust & Investment Co633$741
Signature Equity Partners, LLC10$12
Hilton Head Capital Partners, LLC8$9
Citigroup Inc1$1

Not filed for Q2 2026 yet (1)

Institutions that held ESS Tech, Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding GWH in Q1 2026 that haven't filed for Q2 2026
InstitutionShares, Q1 2026Value, Q1 2026
CWM, LLC6$7