SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
B. Riley Financial, Inc.

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Eos Energy Enterprises, Inc. [ EOSE ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
09/01/2021
4. If Amendment, Date of Original Filed (Month/Day/Year)
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. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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
Class A Common Stock 09/01/2021 S 91,727 D $13.7034 123,782 I By BRC Partners Opportunity Fund, LP(1)(2)
Class A Common Stock 09/02/2021 S 28,991 D $13.7117 94,791 I By BRC Partners Opportunity Fund, LP(1)(2)
Class A Common Stock 09/03/2021 S 30,576 D $13.6493 64,215 I By BRC Partners Opportunity Fund, LP(1)(2)
Class A Common Stock 3,871,250 I By B. Riley Principal Sponsor Co. II, LLC(1)(2)
Class A Common Stock 2,167,000 I By BRF Investments, LLC(1)(2)
Class A Common Stock 20,000 D(3)
Class A Common Stock 5,000 I By Bryant R. Riley, as UTMA custodian for Charlie Riley(1)(2)
Class A Common Stock 5,000 I By Bryant R. Riley, as UTMA custodian for Susan Riley(1)(2)
Class A Common Stock 5,000 I By Bryant R. Riley, as UTMA custodian for Abigail Riley(1)(2)
Class A Common Stock 5,000 I By Bryant R. Riley, as UTMA custodian for Eloise Riley(1)(2)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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 (Month/Day/Year) 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: 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
Warrants (right to buy) $11.5 05/22/2021 11/16/2025 Class A Common Stock 325,000 325,000 I By B. Riley Principal Sponsor Co. II, LLC(1)(2)
Warrants (right to buy) $11.5 05/22/2021 11/16/2025 Class A Common Stock 25,000 25,000 I By BRC Partners Opportunity Fund, LP(1)(2)
1. Name and Address of Reporting Person*
B. Riley Financial, Inc.

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
BRF Investments, LLC

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
B. Riley Principal Sponsor Co. II, LLC

(Last) (First) (Middle)
299 PARK AVENUE 21ST FLOOR

(Street)
NEW YORK NY 10171

(City) (State) (Zip)
1. Name and Address of Reporting Person*
B. RILEY PRINCIPAL INVESTMENTS, LLC

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
B. RILEY CAPITAL MANAGEMENT, LLC

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
BRC Partners Management GP, LLC

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
BRC Partners Opportunity Fund, LP

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
B. Riley Securities, Inc.

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
1. Name and Address of Reporting Person*
RILEY BRYANT R

(Last) (First) (Middle)
11100 SANTA MONICA BLVD SUITE 800

(Street)
LOS ANGELES CA 90025

(City) (State) (Zip)
Explanation of Responses:
1. This Form 4 is being filed jointly by B. Riley Financial, Inc. ("BRF"), BRF Investments, LLC ("BRFI"), B. Riley Principal Sponsor Co. II, LLC (the "Sponsor"), B. Riley Principal Investments, LLC ("BRPI"), BRC Partners Opportunity Fund, LP ("BRPLP"), BRC Partners Opportunity Fund GP, LLC ("BRPGP"), B. Riley Capital Management, LLC ("BRCM"), B. Riley Securities, Inc. ("BRS"), and Bryant R. Riley. BRF is the parent company of BRFI and BRS. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRFI and BRS, respectively. BRPI is the sole member of the Sponsor. BRF is the parent company of BRPI. As a result, BRF and BRPI may be deemed to indirectly beneficially own the shares held by the Sponsor. BRPGP is the general partner of BRPLP. BRCM is the sole member of BRPGP. BRF is the parent company of BRCM. As a result, BRF, BRPGP, and BRCM, may be deemed to indirectly beneficially own the shares held by BRPLP.
2. Bryant R. Riley is the Co-Chief Executive Officer and Chairman of the Board of Directors of BRF. As a result, Bryant R. Riley may be deemed to indirectly beneficially own the shares of Common Stock directly held by BRFI, BRS, BRPLP and the Sponsor. Each of BRF, BRFI, the Sponsor, BRPI, BRPLP, BRPGP, BRCM, BRS, and Bryant R. Riley disclaims beneficial ownership of the outstanding shares of Common Stock reported herein, except to the extent of its/his respective pecuniary interest therein.
3. Represents shares held directly by Bryant R. Riley.
B. Riley Financial, Inc., by: /s/ Bryant R. Riley, Co-Chief Executive Officer 09/03/2021
BRF Investments, LLC., by: /s/ Phillip Ahn, Authorized Signatory 09/03/2021
B. Riley Principal Sponsor Co. II, LLC, by: /s/ Phillip Ahn, Authorized Signatory 09/03/2021
B. Riley Principal Investments, LLC, by: /s/ Kenneth Young, Chief Executive Officer 09/03/2021
B. Riley Capital Management, LLC, by: /s/ Bryant R. Riley, Chief Executive Officer 09/03/2021
BRC Partners Management GP, LLC, by B. Riley Capital Management, LLC, its sole member, by: /s/ Bryant R. Riley, Chief Executive Officer 09/03/2021
BRC Partners Opportunity Fund, L.P., by: /s/ Bryant R. Riley, Chief Investment Officer 09/03/2021
B. Riley Securities, Inc.., by: /s/ Andrew Moore, Chief Executive Officer 09/03/2021
/s/ Bryant R. Riley 09/03/2021
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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