1 institutions reported holding $31 of ESS TECH INC COM NEW (GWH) in SEC 13F filings for 2026-06-30. Largest institutional holders: HARBOR INVESTMENT ADVISORY, LLC ($31). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | HARBOR INVESTMENT ADVISORY, LLC | $31 | 33 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30