# EDGAR Filing Document

**Accession Number:** 0001819438
**File Stem:** 0001819438-25-000057
**Filing Date:** 2025-10
**Character Count:** 7831
**Document Hash:** 14343392b80202f6e0218aeaf043fe05
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001819438-25-000057.hdr.sgml**: 20251014

**ACCESSION NUMBER**: 0001819438-25-000057

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20251013

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20251014

**DATE AS OF CHANGE**: 20251014

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ESS Tech, Inc.
- **CENTRAL INDEX KEY:** 0001819438
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 981550150
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39525
- **FILM NUMBER:** 251389811

**BUSINESS ADDRESS:**
- **STREET 1:** 26440 SW PARKWAY AVE.
- **STREET 2:** BLDG. 83
- **CITY:** WILSONVILLE
- **STATE:** OR
- **ZIP:** 97070
- **BUSINESS PHONE:** (855) 423-9920

**MAIL ADDRESS:**
- **STREET 1:** 26440 SW PARKWAY AVE.
- **STREET 2:** BLDG. 83
- **CITY:** WILSONVILLE
- **STATE:** OR
- **ZIP:** 97070

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ACON S2 Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200728

?xml version='1.0' encoding='ASCII'? wk-20251013

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d)**

**of the Securities Exchange Act of 1934**

**Date of report (Date of earliest event reported): October 13, 2025**

**ESS TECH, INC.**

**(Exact Name of Registrant as Specified in Charter)**

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| | | |
|:---|:---|:---|
| **Delaware** | **001-39525** | **98-1550150** |
| **(State or other jurisdiction**<br>**of incorporation)** | **(Commission**<br>**File Number)** | **(I.R.S. Employer**<br>**Identification Number)** |

---

---

| | |
|:---|:---|
| **26440 SW Parkway Ave., Bldg. 83**<br>**Wilsonville, Oregon** | **97070** |
| **(Address of principal executive offices)** | **(Zip code)** |

---

**(855) 423-9920**

**(Registrant's telephone number, including area code)**

**Not Applicable**

**(Former name or former address, if changed since last report)**

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

**Securities registered pursuant to Section 12(b) of the Act:**

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading**<br>**Symbol(s)** | **Name of each exchange**<br>**on which registered** |
| **Common Stock, $0.0001 par value per share** | **GWH** | **The New York Stock Exchange** |
| **Warrants, each whole warrant exercisable for one share of common stock at an exercise price of $11.50** | **GWH.W** | **The New York Stock Exchange** |

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Item 5.07&nbsp;&nbsp;&nbsp;&nbsp;Submission of Matters to a Vote of Security Holders.** 

(a) On October 13, 2025, ESS Tech, Inc. (the "Company") reconvened its 2025 Annual Meeting of Stockholders (the "Annual Meeting") exclusively online via live webcast. The Annual Meeting was previously convened and adjourned on October 6, 2025 without any business being conducted due to lack of the required quorum. Of the 14,740,884 shares of common stock issued and outstanding as of the close of business on September 16, 2025, the record date for the determination of stockholders entitled to notice of, and to vote at, the Annual Meeting, 7,667,105 shares of common stock were present or represented by proxy at the reconvened Annual Meeting. At the reconvened Annual Meeting, the Company's stockholders (i) elected one Class I director to the Company's board of directors (the "Board") to serve until the Company's 2028 annual meeting of stockholders, (ii) ratified the appointment of KPMG LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2025 and (iii) approved, for purposes of complying with the New York Stock Exchange's listing rules, of the issuance of shares of common stock in excess of 19.99% of the Company's outstanding common stock of up to $25 million of securities under the Company's standby equity purchase agreement and up to 129,312 shares of common stock upon exercise of certain of the Company's warrants to purchase common stock. The proposals are described in detail in the Company's definitive proxy statement on Schedule 14A, filed with the Securities and Exchange Commission ("SEC") on September 22, 2025.

(b) The final voting results for each proposal are set forth below.

*Proposal 1: Election of Director*

At the reconvened Annual Meeting, the Company's stockholders elected one Class I director to the Board to serve until the 2028 annual meeting of stockholders and until his successor has been duly elected and qualified. The table below sets forth the final voting results for the director nominee:

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| | | | |
|:---|:---|:---|:---|
| **Nominee** | **Votes For** | **Votes Withheld** | **Broker Non-Votes** |
| &nbsp;&nbsp;Rich Hossfeld | 7,439,737 | 227,368 |  |

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*Proposal 2: Ratification of the Appointment of KPMG LLP as the Company's Independent Registered Public Accounting Firm*

At the reconvened Annual Meeting, the Company's stockholders ratified the appointment of KPMG LLP to serve as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2025. The table below sets forth the final voting results for this proposal:

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| | | | |
|:---|:---|:---|:---|
| **Votes For** | **Votes Against** | **Abstentions** | **Broker Non-Votes** |
| 7,586,982 | 73,727 | 6,396 |  |

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*Proposal 3: NYSE Share Issuance Proposal*

At the reconvened Annual Meeting, the Company's stockholders approved, for purposes of complying with the New York Stock Exchange's listing rules, of the issuance of shares of common stock in excess of 19.99% of the Company's outstanding common stock of up to $25 million of securities under the Company's standby equity purchase agreement and up to 129,312 shares of common stock upon exercise of certain of the Company's warrants to purchase common stock. The table below sets forth the final voting results for this proposal:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

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| | | | |
|:---|:---|:---|:---|
| **Votes For** | **Votes Against** | **Abstentions** | **Broker Non-Votes** |
| 7,434,603 | 120,785 | 111,717 |  |

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**SIGNATURE** 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

Dated: October 14, 2025

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| | |
|:---|:---|
| **ESS TECH, INC.** | **ESS TECH, INC.** |
| By: | /s/ Kate Suhadolnik |
| Name: | Kate Suhadolnik |
| Title: | Interim Chief Financial Officer |

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