IPO registrations (S-1, F-1) · Registrants
ESS Tech, Inc.
- SEC CIK
- 1819438 · filings on EDGAR ↗
- Former names
- ACON S2 Acquisition Corp. (2020–2021)
- Registration
- Form S-1, first filed 2020-08-31, last 2022-03-04; 4 initial registrations, 3 amendments
- Outcome
- Final prospectus filed 2020-09-18; declared effective 2020-09-16; withdrawal requested 2022-02-08
- Industry (SIC)
- Miscellaneous Electrical Machinery, Equipment & Supplies 3690
- Incorporated in
- DE
- Business address
- 26440 SW PARKWAY AVE., BLDG. 83, Wilsonville, OR 97070
- EIN
- 98-1550150
- Ticker
- GWHT (OTC)
- EDGAR entity type
- operating
- Insiders and CEO pay
- ESS Tech, Inc. on the corporate pages
On this site
- Business registration: ESS TECH, INC, EXACT (EIN (EXACT, as the state registration reports it))
- Business registration: ESS TECH, INC. Fuzzy (name and state)
- Form 5500 plan sponsor: ESS TECH, INC EXACT (EIN (EXACT))
- Federal award recipient: ESS TECH, INC Fuzzy (name and state)
- Form D issuer: ESS Tech, Inc. EXACT (CIK (EXACT))
- Lobbying client: ESS TECH, INC. Fuzzy (name and state)
- Lobbying registrant: ESS TECH, INC. Fuzzy (name and state)
- SEC filer: ACON S2 Acquisition Corp. EXACT (CIK (EXACT))
- Person page: Michael R Niggli Fuzzy (officer, director or 10% owner on the company's Forms 3, 4 and 5 (Director))
Filings 17
| Filed | Form | What it is | Name as filed | EDGAR |
|---|---|---|---|---|
| 2020-08-31 | S-1 | S-1 (registration) | ACON S2 Acquisition Corp. | 0001193125-20-236408 ↗ |
| 2020-09-09 | S-1/A | S-1/A (amendment) | ACON S2 Acquisition Corp. | 0001193125-20-241467 ↗ |
| 2020-09-11 | S-1/A | S-1/A (amendment) | ACON S2 Acquisition Corp. | 0001193125-20-244274 ↗ |
| 2020-09-15 | S-1/A | S-1/A (amendment) | ACON S2 Acquisition Corp. | 0001193125-20-245853 ↗ |
| 2020-09-16 | EFFECT | EFFECT (declared effective) | ACON S2 Acquisition Corp. | 9999999995-20-002471 ↗ |
| 2020-09-18 | 424B4 | 424B4 (final prospectus) | ACON S2 Acquisition Corp. | 0001193125-20-249225 ↗ |
| 2021-09-14 | EFFECT | EFFECT (declared effective) | ACON S2 Acquisition Corp. | 9999999995-21-003504 ↗ |
| 2021-11-03 | S-1 | S-1 (registration) | ESS Tech, Inc. | 0001193125-21-317289 ↗ |
| 2021-11-10 | EFFECT | EFFECT (declared effective) | ESS Tech, Inc. | 9999999995-21-004303 ↗ |
| 2021-12-13 | EFFECT | EFFECT (declared effective) | ESS Tech, Inc. | 9999999995-21-004665 ↗ |
| 2021-12-27 | S-1 | S-1 (registration) | ESS Tech, Inc. | 0001193125-21-367045 ↗ |
| 2022-02-08 | RW | RW (withdrawal request) | ESS Tech, Inc. | 0001193125-22-031040 ↗ |
| 2022-03-04 | S-1 | S-1 (registration) | ESS Tech, Inc. | 0001628280-22-005167 ↗ |
| 2022-03-16 | EFFECT | EFFECT (declared effective) | ESS Tech, Inc. | 9999999995-22-000657 ↗ |
| 2022-11-17 | EFFECT | EFFECT (declared effective) | ESS Tech, Inc. | 9999999995-22-003324 ↗ |
| 2022-11-17 | EFFECT | EFFECT (declared effective) | ESS Tech, Inc. | 9999999995-22-003331 ↗ |
| 2023-12-14 | EFFECT | EFFECT (declared effective) | ESS Tech, Inc. | 9999999995-23-003623 ↗ |
Officers, directors and large holders Forms 3, 4 and 5
| Insider | Role | Title | Filings | Years | On this site |
|---|---|---|---|---|---|
| ACON S2 Management, LLC | TenPercentOwner | 3 | 2020–2021 | ||
| Goddard Janie | Director | 2 | 2020–2021 | ||
| Jinich Daniel | Director | 2 | 2020–2021 | ||
| Kriger Adam M. | Director,Officer | Chief Executive Officer | 2 | 2020–2021 | |
| Levy Sarah Kirshbaum | Director | 2 | 2020–2021 | ||
| Roush John A | Director,Officer | Chief Financial Officer | 2 | 2020–2021 | |
| Shadrick-Wilson Ryan D | Director | 2 | 2020–2021 | ||
| GINNS JONATHAN J | Director | 2 | 2020–2021 | ||
| Bodner Jeff | Officer | Chief Accounting Officer | 5 | 2021–2022 | |
| BREAKTHROUGH ENERGY INVESTMENTS LLC | TenPercentOwner | 2 | 2021 | ||
| Breakthrough Energy Ventures, LLC | TenPercentOwner | 2 | 2021 | ||
| Dresselhuys Eric P. | Director,Officer | Chief Executive Officer | 14 | 2021–2024 | |
| Evans Craig E | Director,Officer | President | 12 | 2021–2023 | |
| Garabedian Raffi | Director | 7 | 2021–2026 | ||
| Hossfeld Rich | Director | 7 | 2021–2026 | ||
| Moftakhar Amir | Officer | Chief Financial Officer | 8 | 2021–2022 | |
| NIGGLI MICHAEL R | Director | 13 | 2021–2025 | person page Fuzzy | |
| SOFTBANK GROUP CORP | Director,TenPercentOwner | 2 | 2021 | ||
| Song Julia | Officer | Chief Technology Officer | 9 | 2021–2022 | |
| Speakman Shirley | Director | 1 | 2021 | ||
| Teamey Kyle | Director | 10 | 2021–2025 | ||
| WELLMAN ALEXI | Director | 7 | 2021–2026 | ||
| Wilson Daryl C | Director | 3 | 2021–2022 | ||
| Gast Claudia | Director | 3 | 2022 | ||
| Rabb Anthony | Officer | Chief Financial Officer | 8 | 2022–2025 | |
| Nijhawan Sandeep | Director | 6 | 2023–2026 | ||
| Quarls Harry | Director | 11 | 2023–2026 | ||
| HONEYWELL INTERNATIONAL INC | TenPercentOwner | 1 | 2023 | ||
| Goodman Kelly F. | Officer | Interim CEO; SEE REMARKS | 10 | 2025–2026 | |
| Suhadolnik Kate Eileen | Officer | Chief Financial Officer; Interim CFO | 7 | 2025–2026 | |
| Trivedi Jigish Dhirajlal | Officer | COO | 2 | 2025 | |
| Buckley Drew P | Director,Officer | CEO | 3 | 2026 |
Everyone who filed an insider report for this company, from the SEC’s Insider Transactions Data Sets (2006 on). Person pages are matched by name and state only.
Private offerings before or after (Form D)
| First filed | Issuer | Industry | Offering | Sold | Investors | Filings |
|---|---|---|---|---|---|---|
| 2025-07-23 | ESS Tech, Inc. | Manufacturing | $900,000 | $900,000 | 7 | 1 |
| 2023-09-26 | ESS Tech, Inc. | Commercial | $27,500,000 | $27,500,000 | 1 | 1 |
Data: SEC EDGAR. The quarterly full index (every S-1, S-1/A, F-1 and F-1/A since 1993, with the pricing prospectus, notice of effectiveness and withdrawal request of each registrant) and the company submissions data (SIC, state of incorporation, address, EIN, tickers, former names). Company details are what EDGAR holds today, not at the time of the filing.