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)
3/2/2021
(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  3/2/2021    J(1)    92375  D $0  7135109  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 Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. 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 Date 7. 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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
(1)  AltEnergy Storage Bridge Phase II, LLC and AltEnergy Storage Bridge, LLC made pro rata distributions for no consideration of an aggregate of 92,375 shares of Common Stock of the Issuer to their respective members on March 2, 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 Storage LLC, a Delaware limited liability company ("AltEnergy I"); (iii) AltEnergy Storage II LLC, a Delaware limited liability company ("AltEnergy II"); (iv) AltEnergy Storage V LLC, a Delaware limited liability company ("AltEnergy V"); (v) AltEnergy VI LLC, a Delaware limited liability company ("AltEnergy VI"); AltEnergy Storage Bridge LLC, a Delaware limited liability company ("Bridge"); AltEnergy Transmission LLC, a Delaware limited liability company ("Transmission"); AltEnergy Storage Bridge Phase II LLC ("Bridge II" and 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 or Bridge II. 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, and has voting and dispositive power with respect to the securities owned by AltEnergy I, AltEnergy II, AltEnergy V, AltEnergy VI, Bridge, Transmission and Bridge II. 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
Director 10% Owner Officer Other
Stidolph Russell Monoki
C/O ALTENERGY LLC
137 ROWAYTON AVENUE
ROWAYTON, CT 06853
X X

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 Stidolph 3/4/2021
**Signature of Reporting Person Date
AltEnergy LLC by: /s/ Russell Stidolph, Managing Director 3/4/2021
**Signature of Reporting Person Date
AltEnergy Storage II LLC by: /s/ Russell Stidolph, Managing Director 3/4/2021
**Signature of Reporting Person Date
AltEnergy Storage V LLC by: /s/ Russell Stidolph, Managing Director 3/4/2021
**Signature of Reporting Person Date
AltEnergy VI LLC by: /s/ Russell Stidolph, Managing Director 3/4/2021
**Signature of Reporting Person Date
AltEnergy Storage Bridge LLC by: /s/ Russell Stidolph, Managing Director 3/4/2021
**Signature of Reporting Person Date
AltEnergy Transmission LLC by: /s/ Russell Stidolph, Managing Director 3/4/2021
**Signature of Reporting Person Date
AltEnergy Storage Bridge Phase II LLC by: /s/ Russell Stidolph, Managing Director 3/4/2021
**Signature of Reporting Person Date
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