ESS Tech Inc.
Organization details
- Legal name
- ESS Tech Inc.
- Former names
- ACON S2 Acquisition Corp.
- Ownership
- Public
- Status
- Active
- Sector (GICS)
- Industrials
- SIC code
- 3690 — Miscellaneous Electrical Machinery, Equipment & Supplies
- Jurisdiction of incorporation
- Delaware
- Headquarters city
- Wilsonville
- Headquarters state / province
- Oregon
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- GWH
- Primary stock exchange
- NYSE
Identifiers
- SEC CIK
- 0001819438
- EIN
- 98-1550150
Board of directors
-
Alexi Wellman · DirectorSince 2023
-
Craig E. Evans · Director · PresidentSince 2023
-
Drew P. Buckley · Director · CEOSince 2026
-
Eric P. Dresselhuys · Director · Chief Executive OfficerSince 2023
-
Harry Quarls · DirectorSince 2023
-
Kyle Teamey · DirectorSince 2023
-
Michael R. Niggli · DirectorSince 2023
-
Raffi Garabedian · DirectorSince 2023
-
Rich Hossfeld · DirectorSince 2023
-
Sandeep Nijhawan · DirectorSince 2023
Chief executives
Director election results
Annual meeting of May 29, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
75.7%
-
97.0%
Board connections
3 of this board's directors also sit on 4 other boards. 1 is in the same sector.
- via Alexi Wellman
- via Michael R. Niggli
- via Harry Quarls
-
Werner Enterprises Inc. Same sectorvia Alexi Wellman
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $25,750
- 1 purchase by 1 insider
- Sold, last 12 months
- $16,592
- 8 sales by 2 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 21, 2026 | Goodman Kelly F. Officer (SEE REMARKS) | Open-market sale | −5,400 | $0.40 | $2,160 |
| Aug 21, 2026 | Suhadolnik Kate Eileen Officer (Chief Financial Officer) | Open-market sale | −3,927 | $0.40 | $1,571 |
| Jun 4, 2026 | Drew P. Buckley Director, Officer (CEO) | Open-market purchase | +25,000 | $1.03 | $25,750 |
| May 29, 2026 | Alexi Wellman Director | Grant or award | +13,513 | — | — |
| May 29, 2026 | Harry Quarls Director | Grant or award | +13,513 | — | — |
| May 29, 2026 | Sandeep Nijhawan Director | Grant or award | +13,513 | — | — |
| May 29, 2026 | Rich Hossfeld Director | Grant or award | +13,513 | — | — |
| May 29, 2026 | Raffi Garabedian Director | Grant or award | +13,513 | — | — |
| May 22, 2026 | Suhadolnik Kate Eileen Officer (Chief Financial Officer) | Open-market sale | −1,922 | $0.93 | $1,787 |
| May 22, 2026 | Goodman Kelly F. Officer (SEE REMARKS) | Open-market sale | −2,751 | $0.93 | $2,558 |
| May 21, 2026 | Suhadolnik Kate Eileen Officer (Chief Financial Officer) | Open-market sale | −1,735 | $0.92 | $1,596 |
| May 21, 2026 | Goodman Kelly F. Officer (SEE REMARKS) | Open-market sale | −2,482 | $0.92 | $2,283 |
| Feb 20, 2026 | Suhadolnik Kate Eileen Officer (Chief Financial Officer) | Open-market sale | −741 | $1.54 | $1,141 |
| Feb 20, 2026 | Goodman Kelly F. Officer (SEE REMARKS) | Open-market sale | −2,269 | $1.54 | $3,494 |
| Feb 13, 2026 | Suhadolnik Kate Eileen Officer (Chief Financial Officer) | Grant or award | +137,500 | — | — |
Peers
Compare boardsOrganizations in the same sector, closest in location and size first.
Questions about ESS Tech Inc.
Who is the CEO of ESS Tech Inc.?
Drew P. Buckley has been ESS Tech Inc.'s CEO since January 2026.
How many directors are on ESS Tech Inc.'s board?
ESS Tech Inc.'s board has 10 directors: Alexi Wellman, Craig E. Evans, Drew P. Buckley, Eric P. Dresselhuys, Harry Quarls, Kyle Teamey, Michael R. Niggli, Raffi Garabedian, Rich Hossfeld and Sandeep Nijhawan.
Are ESS Tech Inc. insiders buying or selling shares?
Over the last 12 months, ESS Tech Inc. insiders bought $25,750 of shares in 1 purchase and sold $16,592 of shares in 8 sales on the open market, as reported to the SEC on Forms 4 and 5.
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