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[SCHEDULE 13D/A] Eos Energy Enterprises, Inc. Amended Major Shareholder Report

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13D/A

Rhea-AI Filing Summary

Cerberus-affiliated investors report a 32% beneficial stake in Eos Energy Enterprises and outline a new joint venture and financing plan. The reporting persons may be deemed to own 159,587,654 shares of common stock, including shares issuable from existing warrants and preferred stock, out of 339,514,027 shares outstanding as of May 11, 2026.

Eos and CCM Frontier signed a binding term sheet to form a joint venture, Frontier Power USA Parent, LLC. CCM Frontier is expected to contribute 50,000,001 Class A-1 units and an Initial Class A-2 Contribution of $100 million for 100,000,000 Class A-2 units, plus receive long-dated warrants for Eos common stock. Eos plans to fund its JV contribution through a Rights Offering targeting $150 million, issuing common shares and additional warrants to participating stockholders. JV governance gives CCM Frontier four of seven manager seats initially, with Eos representation tied to ownership thresholds and transfer restrictions applying for three years after closing.

Positive

  • None.

Negative

  • None.

Insights

Cerberus structures a large JV and rights offering around a 32% Eos stake.

The filing shows Cerberus-related entities may be deemed to own 159,587,654 Eos shares, or about 32% of common stock outstanding as of May 11, 2026. This level of ownership positions them as a major strategic holder.

The binding term sheet creates a frontier power joint venture where CCM Frontier contributes $100 million for 100,000,000 Class A-2 units and receives 50,000,001 Class A-1 units plus long-duration warrants. Eos plans a $150 million Rights Offering, with participants receiving common shares and RO Warrants at a 20% discount to a 15‑day VWAP-based exercise price.

Governance terms give CCM Frontier four of seven initial board seats at the JV and management authority via an affiliate, while Eos’ influence depends on maintaining ownership thresholds. Transfer restrictions and drag rights for three years after closing shape potential exit dynamics. Overall impact depends on execution of the JV and completion of the Rights Offering.






29415C101

(CUSIP Number)
Alexander D. Benjamin
875 Third Avenue, 11th Floor,
New York, NY, 10022
(212) 891-2100

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)
05/12/2026

(Date of Event Which Requires Filing of This Statement)


If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).




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SCHEDULE 13D






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SCHEDULE 13D


Cerberus Capital Management II, L.P.
Signature:/s/ Alexander D. Benjamin
Name/Title:Alexander D. Benjamin/Senior Managing Director and Chief Legal Officer
Date:05/14/2026
CCM Denali Equity Holdings, LP
Signature:/s/ Alexander D. Benjamin
Name/Title:Alexander D. Benjamin/Manager, CCM Denali Equity Holdings GP, LLC, its general partner
Date:05/14/2026
CCM Denali Equity Holdings GP, LLC
Signature:/s/ Alexander D. Benjamin
Name/Title:Alexander D. Benjamin/Manager
Date:05/14/2026