GWH — ESS Tech, Inc.

US Technology Electronic components equity mkt cap 13.3M
0.40 +3.37% today
USD · as of 2026-08-21

Price · 2024-08-26 → 2026-08-21

499 daily closes shown
52w low 0.39 · high 9.05

Anonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2020-11-30.

Performance

1 day+3.37%
1 week-34.62%
1 month-49.44%
3 months-56.10%
6 months-73.72%
Year to date-79.87%
1 year-74.86%
3 years-97.79%
5 years-99.73%

Technicals

RSI 1428.8
vs 50-day avg-47.14%
vs 200-day avg-71.99%
Volatility 1y219.2%
Max drawdown 1y-95.67%
Avg volume 30d937.6K
Daily bars held1,438
History from2020-11-30

Insider transactions (Form 4)

dateinsiderwhatshares pricevalue
2026-06-04Buckley Drew P
CEO
Open-market purchase25.0K1.0325.7K
2026-05-29Nijhawan Sandeep
Director
Grant or award13.5K0.000
2026-05-29Quarls Harry
Director
Grant or award13.5K0.000
2026-05-29WELLMAN ALEXI
Director
Grant or award13.5K0.000
2026-05-29Hossfeld Rich
Director
Grant or award13.5K0.000
2026-05-29Garabedian Raffi
Director
Grant or award13.5K0.000
2026-05-22Goodman Kelly F.
SEE REMARKS
Open-market sale2.8K0.932.6K
2026-05-22Suhadolnik Kate Eileen
Chief Financial Officer
Open-market sale1.9K0.931.8K
2026-05-21Goodman Kelly F.
SEE REMARKS
Open-market sale2.5K0.922.3K
2026-05-21Suhadolnik Kate Eileen
Chief Financial Officer
Open-market sale1.7K0.921.6K

Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →

Largest institutional holders

managervalueshares
SOFTBANK GROUP CORP.2.8M2.4M
Alyeska Investment Group, L.P.1.6M1.4M
HEIGHTS CAPITAL MANAGEMENT, INC1.1M963.5K
Arosa Capital Management LP1.1M910.0K
VANGUARD CAPITAL MANAGEMENT LLC742.6K634.7K
GEODE CAPITAL MANAGEMENT, LLC261.6K223.6K
Shay Capital LLC210.6K180.0K
UBS Group AG174.7K149.3K
Green Alpha Advisors, LLC134.1K114.6K
Pathstone Holdings, LLC102.3K87.4K

13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →

Short selling

Avg short volume, 90d53.3% of tape
Days observed61

This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →

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