FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Stidolph Russell Monoki
2. Issuer Name and Ticker or Trading Symbol

Eos Energy Enterprises, Inc. [ EOSE ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    __X__ 10% Owner
_____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle)

C/O ALTENERGY LLC, 137 ROWAYTON AVENUE
3. Date of Earliest Transaction (MM/DD/YYYY)

8/3/2021
(Street)

ROWAYTON, CT 06853
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 8/3/2021  J(1)  1275374 D$0 4469292 I See footnotes (2)(3)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares

Explanation of Responses:
(1) AltEnergy Storage, LLC, a Delaware limited liability company ("AltEnergy I"), AltEnergy Storage II, LLC, a Delaware limited liability company ("AltEnergy II"), AltEnergy Storage V, LLC, a Delaware limited liability company ("AltEnergy V"), AltEnergy Storage Bridge Phase II, LLC, a Delaware limited liability company ("Bridge II") and AltEnergy Storage Bridge, LLC, a Delaware limited liability company ("Bridge") made pro rata distributions for no consideration of an aggregate of 1,275,374 shares of Common Stock of the Issuer to their respective members on August 3, 2021.
(2) In addition to Russell Stidolph, a natural person ("Mr. Stidolph"), this Form 4 is being filed jointly by AltEnergy LLC, a Delaware limited liability company ("AltEnergy"); (ii) AltEnergy I; (iii) AltEnergy II; (iv) AltEnergy V; (v) AltEnergy VI LLC, a Delaware limited liability company ("AltEnergy VI"); (vi) Bridge; (vii) AltEnergy Transmission LLC, a Delaware limited liability company ("Transmission"); and (viii) Bridge II (collectively, the "Filing Persons").
(3) The shares reported in this Form 4 are shares of common stock in which Mr. Stidoloph has a pecuniary interest in that are held directly byAltEnergy I, AltEnergy II, AltEnergy V, AltEnergy VI, Bridge, Transmission, Bridge II or The 2008 Stidolph Family Trust (the "Trust"). Mr. Stidolph is the managing director of AltEnergy, the managing member of each of AltEnergy I, AltEnergy II, AltEnergy V, AltEnergy VI, Bridge, Transmission and Bridge II, a trustee of the Trust, and has voting and dispositive power with respect to the securities owned by AltEnergy I, AltEnergy II, AltEnergy V, AltEnergy VI, Bridge, Transmission, Bridge II and the Trust. Each of the Filing Persons disclaims beneficial ownership of the outstanding shares of common stock of the issuer reported herein except to the extent of its pecuniary interest therein.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Stidolph Russell Monoki
C/O ALTENERGY LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853
XX

AltEnergy, LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853

X

AltEnergy Storage II LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853

X

AltEnergy Storage V LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853

X

AltEnergy Storage VI LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853

X

AltEnergy Storage Bridge LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853

X

AltEnergy Transmission LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853

X

AltEnergy Storage Bridge Phase II LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853

X


Signatures
/s/ Russell Stidolph8/5/2021
**Signature of Reporting PersonDate

AltEnergy LLC by: /s/ Russell Stidolph, Managing Director8/5/2021
**Signature of Reporting PersonDate

AltEnergy Storage II LLC by: /s/ Russell Stidolph, Managing Director8/5/2021
**Signature of Reporting PersonDate

AltEnergy Storage V LLC by: /s/ Russell Stidolph, Managing Director8/5/2021
**Signature of Reporting PersonDate

AltEnergy VI LLC by: /s/ Russell Stidolph, Managing Director8/5/2021
**Signature of Reporting PersonDate

AltEnergy Storage Bridge LLC by: /s/ Russell Stidolph, Managing Director8/5/2021
**Signature of Reporting PersonDate

AltEnergy Transmission LLC by: /s/ Russell Stidolph, Managing Director8/5/2021
**Signature of Reporting PersonDate

AltEnergy Storage Bridge Phase II LLC by: /s/ Russell Stidolph, Managing Director8/5/2021
**Signature of Reporting PersonDate

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