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 * Riley Richard J. 2. Issuer Name and Ticker or Trading Symbol Origin Materials, Inc. [ ORGN ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)__X__ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Co-CEO and Director
(Last)         (First)         (Middle)
C/O ORIGIN MATERIALS, INC., 930 RIVERSIDE PARKWAY, SUITE 10
3. Date of Earliest Transaction (MM/DD/YYYY)
8/17/2021
(Street)
WEST SACRAMENTO, CA 95605
(City)       (State)       (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)
 
6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person
___ 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  8/17/2021    P    40000  A $5.5938 (1) 229668  I  By Trust (2)
Common Stock                 229415  I  By Trust (3)
Common Stock                 707832  I  By Trust (4)

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)  Price reported is a weighted-average purchase price. The shares were purchased at prices ranging from $5.45 to $5.77. The Reporting Person will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares purchased at each separate price.
(2)  Shares are owned directly by the Riley Family Trust, of which the Reporting Person is a co-trustee.
(3)  Shares are owned directly by Riley Investment Trust I, of which Reporting Person is trustee.
(4)  Shares are owned directly by Riley Separate Property Trust, of which Reporting Person is trustee.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Riley Richard J.
C/O ORIGIN MATERIALS, INC.
930 RIVERSIDE PARKWAY, SUITE 10
WEST SACRAMENTO, CA 95605
X
Co-CEO and Director

Signatures
Richard J. Riley, by /s/ Ron A. Metzger, Attorney-in-Fact 8/18/2021
**Signature of Reporting Person Date
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