Trust Size
$51M
Peak Price
$433.80
Current Price
$1.18
Return
-88.2%
Price Journey
What Happened
ESS Tech develops iron flow battery systems for long-duration energy storage, offering a non-lithium, non-toxic alternative for utility-scale and commercial applications.
ESS Tech went public in October 2021 through a merger with ACON S2 Acquisition Corp at a $1.07 billion valuation. The company's iron flow batteries use earth-abundant iron, salt, and water as active materials, promising 20+ year lifespans with no capacity degradation. ESS has struggled with manufacturing scale-up and the stock has plummeted, though the technology remains promising for grid-scale storage applications.
Timeline
2020-09-11
S-1 Registration Filed
🔀 Reverse Stock Split
Reverse split ratio: . Reverse splits are used to avoid delisting but destroy shareholder value through the illusion of a higher stock price.
SEC Filing Details
CIK Number
1819438
Total SEC Filings
430
State of Incorporation
DE
Last Filing Date
2026-03-05
Business Location
George Town, E9
Trust/Asset Size
$51M
Data sourced from SEC EDGAR Company Facts API and EFTS search index.
📄 SEC Filings
View all EDGAR filings for ESS Tech