Sec Form 4 Filing - ANDERSON ERIK J @ Solid Power, Inc. - 2023-05-24

Insider filing report for Changes in Beneficial Ownership
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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
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person
ANDERSON ERIK J
 2. Issuer Name and Ticker or Trading Symbol
Solid Power, Inc. [ SLDP] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X __ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last) (First) (Middle)
C/O SOLID POWER,INC., 486 S. PIERCE AVENUE, SUITE E 		3. Date of Earliest Transaction (MM/DD/YY)
05/24/2023
(Street)
LOUISVILLE, CO80027 		4. If Amendment, Date Original Filed (MM/DD/YY)
6. Individual or Joint/Group Filing (Check Applicable Line)
__ X __ Form filed by One Reporting Person
_____ Form filed by More than One Reporting Person
(City) (State) (Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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
Common Stock 05/24/2023 A 59,197 ( 1 ) A $ 0 59,197 D
Common Stock 05/25/2023 S 1,901 ( 2 ) D $ 2.1 693,900 I By WestRiver Management, LLC and affiliates ( 3 )
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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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
(MM/DD/YY) 		7. Title and Amount of Underlying Securities
(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
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
ANDERSON ERIK J
C/O SOLID POWER,INC.
486 S. PIERCE AVENUE, SUITE E
LOUISVILLE, CO80027		 X
Signatures
/s/ Erik J Anderson 05/26/2023
Signature of Reporting Person Date
Explanation of Responses:
( 1 )Represents restricted stock units, which upon vesting of the unit, represent the right to receive one share of the issuer's common stock. The restricted stock units vest upon the earlier of: (i) the first anniversary of the grant date or (ii) the day before the issuer's next annual meeting of stockholders following the grant date, in each case, subject to the reporting person continuing to be a service provider (as defined in the 2021 Solid Power, Inc. Equity Incentive Plan) through such vesting date.
( 2 )By WRG DCRC, LLC ("WRG DCRC"), of which WestRiver Management, LLC ("WestRiver Management") is the sole managing member. The Reporting Person is the sole member and sole manager of WestRiver Management. As a result, the Reporting Person may be deemed to beneficially own the securities held of record by WRG DCRC. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein.
( 3 )Represents 187,617 shares owned directly by WestRiver Management and 506,283 shares owned directly by WRG INV41, LLC ("WRG INV41"). WestRiver Management is the sole managing member of WRG INV41. The Reporting Person is the sole member and sole manager of WestRiver Management. As a result, the Reporting Person may be deemed to beneficially own the securities held of record by WestRiver Management and WRG INV41, LLC. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein.

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).

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