Eos Energy details CCO Nathan Kroeker exit deal

Eos Energy Enterprises details the separation agreement and compensation terms for its departing Chief Commercial Officer.

Rhea-AI Filing Summary

Eos Energy Enterprises, Inc. (EOSE) filed an amended current report to expand on previously disclosed plans for Chief Commercial Officer Nathan Kroeker’s departure on October 20, 2026. The amendment describes a separation agreement entered into on September 10, 2026.

Under this agreement, in exchange for a release of claims and compliance with restrictive covenants, Mr. Kroeker will receive 12 months of base salary continuation at $470,000 per year, a pro‑rated 2026 annual bonus based on actual performance, full acceleration of unvested restricted stock units, and pro‑rata acceleration of unvested performance stock units, subject to achievement of applicable performance conditions. The full agreement will be filed as an exhibit to the Form 10‑Q for the quarter ending September 30, 2026.

8-K Event Classification

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers

1 item

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Key Figures

Annual base salary: $470,000 per year Salary continuation period: 12 months Departure date: October 20, 2026 +2 more

5 metrics

Annual base salary $470,000 per year Base salary used to calculate 12 months of salary continuation under the separation agreement

Salary continuation period 12 months Duration of base salary continuation for Nathan Kroeker under the separation agreement

Departure date October 20, 2026 Date on which Chief Commercial Officer Nathan Kroeker will depart the company

Agreement date September 10, 2026 Date the separation agreement with Nathan Kroeker was entered into

Form 10-Q period Quarter ending September 30, 2026 Quarterly report that will include the full separation agreement as an exhibit

Key Terms

Separation Agreement, restricted stock units, performance stock units, release of claims, +1 more

5 terms

Separation Agreement financial

"the Company entered into a separation agreement with Mr. Kroeker (the “Separation Agreement”)"

A separation agreement is a written contract that spells out the financial and legal terms when an employee and a company part ways, such as final pay, severance, continued benefits, confidentiality, and any release of claims. For investors, it matters because these agreements determine immediate costs, potential future liabilities, and whether departing staff are restricted from competing or disclosing information—factors that can affect a company’s cash flow, risk profile, and leadership continuity.

restricted stock units financial

"acceleration of each of his outstanding and unvested restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

performance stock units financial

"pro-rata acceleration of each of his outstanding and unvested performance stock units"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

release of claims regulatory

"in exchange for his execution and non-revocation of a release of claims"

restrictive covenants regulatory

"continued compliance with the terms of his agreement (including his restrictive covenants)"

Restrictive covenants are contract terms that limit what a company, its executives, or shareholders can do—like rules that prohibit selling stock, starting a rival business, or taking on certain debts. Think of them as house rules that protect one party’s interests by keeping risky or competitive actions off the table. For investors they matter because these limits affect a company’s flexibility, governance, potential future value and the ease of exiting an investment.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does EOSE’s amended 8-K disclose about the Chief Commercial Officer’s departure?

The amendment describes a separation agreement with Chief Commercial Officer Nathan Kroeker, covering 12 months of salary continuation, a pro-rated 2026 bonus, and accelerated equity awards, in connection with his planned departure on October 20, 2026.

What severance pay will EOSE’s Nathan Kroeker receive under the separation agreement?

Nathan Kroeker will receive 12 months of base salary continuation at his current annual base salary of $470,000, in exchange for a release of claims and compliance with his existing agreements and restrictive covenants.

How are equity awards treated in the EOSE separation agreement?

The agreement provides for acceleration of all outstanding unvested restricted stock units and pro‑rata acceleration of outstanding unvested performance stock units, with the performance stock units remaining subject to actual achievement of the applicable performance conditions.

Will EOSE’s departing CCO receive a 2026 bonus?

He is entitled to a pro‑rated annual bonus for 2026, which will be determined based on actual achievement of applicable performance conditions and paid at the same time 2026 annual bonuses are paid to other executives.

When did EOSE enter into the separation agreement with its Chief Commercial Officer?

Eos Energy Enterprises entered into the separation agreement with Chief Commercial Officer Nathan Kroeker on September 10, 2026, in connection with his transition and pending separation from the company.

Where can investors find the full text of the EOSE separation agreement?

The company states the complete text of the Separation Agreement will be filed as an exhibit to Eos Energy Enterprises’ Form 10‑Q for the quarter ending September 30, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/16/2026 - 04:24 PM Accepted by SEC EDGAR 09/16/2026 - 04:24 PM Learn about SEC filing dates

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): September 10, 2026

EOS ENERGY ENTERPRISES, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-39291

84-4290188

(State or other jurisdiction of incorporation)

(Commission File Number)

(IRS Employer Identification No.)

Two Allegheny Center

Nova Tower 2

Pittsburgh, Pennsylvania 15212

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (732) 225-8400

N/A

(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:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common stock, par value $0.0001 per share

EOSE

The Nasdaq Stock Market LLC

Warrant, each whole warrant exercisable to purchase one share of Common Stock at an exercise price of $5.481

EOSEW

The Nasdaq Stock Market LLC

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 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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. ☐

1

Explanatory Note

This Current Report on Form 8-K/A (this “Amendment”) amends the Current Report on Form 8-K of Eos Energy Enterprises, Inc. (the “Company”) filed with the Securities and Exchange Commission on August 25, 2026 (the “Initial Form 8-K”), to supplement the Company’s disclosure under Item 5.02 of the Initial Form 8-K. The Initial Form 8-K reported, among other things, that Nathan Kroeker, the Company’s then Chief Commercial Officer, will depart from the Company on October 20, 2026. This Amendment is being filed solely for the purpose of amending the disclosure in the Initial Form 8-K to include a description of Mr. Kroeker’s separation agreement. This Amendment does not otherwise modify or update any other disclosures in the Initial Form 8-K.

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

In connection with the transition of his role and pending separation, on September 10, 2026, the Company entered into a separation agreement with Mr. Kroeker (the “Separation Agreement”). Pursuant to the terms of the Separation Agreement, in exchange for his execution and non-revocation of a release of claims and continued compliance with the terms of his agreement (including his restrictive covenants), Mr. Kroeker will receive the following benefits in accordance with the terms of his current employment agreement and equity award agreements: (i) twelve-months of base salary continuation at his current annual base salary of $470,000; (ii) a pro-rated annual bonus for 2026, subject to the actual achievement of the applicable performance conditions and paid at the same time as the 2026 annual will be paid to other executives of the Company; (iii) acceleration of each of his outstanding and unvested restricted stock units; and (iv) pro-rata acceleration of each of his outstanding and unvested performance stock units, subject to actual achievement of the applicable performance conditions.

The foregoing description of the Separation Agreement contained herein does not purport to be complete and is qualified in its entirety by reference to the complete text of his agreement, a copy of which will be filed as an exhibit to the Company’s Quarterly Report on Form 10-Q for the quarter ending September 30, 2026.

2

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.

			EOS ENERGY ENTERPRISES, INC.
Dated: September 16, 2026			By:			/s/ Alessandro Lagi
						Name:			Alessandro Lagi
						Title:			Chief Financial Officer

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Filing Exhibits & Attachments

4 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 2.1 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT 15.2 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 28.2 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 16.8 KB