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 *

Sullivan Lynne Marie		 2. Issuer Name and Ticker or Trading Symbol

Unity Biotechnology, Inc. [ UBX ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
CFO & Head of Corp. Dev.
(Last)          (First)          (Middle)

C/O UNITY BIOTECHNOLOGY, INC., 285 EAST GRAND AVENUE		 3. Date of Earliest Transaction (MM/DD/YYYY)

11/18/2022
(Street)

SOUTH SAN FRANCISCO, CA 94080
(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, $0.0001 par value 5/15/2022  J(1)  V 925 A$6.89 (2)33009 (3)(4)D  

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
Stock Option (Right to Buy) $2.38 11/18/2022  A   80000     (5)11/18/2032 Common Stock 80000 $0.00 80000 D  
Explanation of Responses:
(1) The reporting person is voluntarily reporting the acquisition of shares of the issuer's common stock pursuant to the Unity Biotechnology, Inc. 2018 Employee Stock Purchase Plan (the ESPP). The acquisition of those 925 shares was also exempt pursuant to Rule 16b-3(c).
(2) In accordance with the ESPP, these shares were purchased based on 85% of the closing price of the Issuer's common stock on May 15, 2022.
(3) Includes RSUs which vest over time measured from the grant date.
(4) Reflects a 1-for-10 reverse stock split of the Issuer's common stock, effected by the Issuer on October 19, 2022, which was exempt from reporting pursuant to Rule 16a-9.
(5) The underlying shares vest and become exercisable pursuant to the following schedule: One-eighth of the shares subject to the option vest in successive, equal quarterly installments starting on February 18, 2023, subject to the Reporting Person's continued service to Issuer through the applicable vesting date.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Sullivan Lynne Marie
C/O UNITY BIOTECHNOLOGY, INC.
285 EAST GRAND AVENUE
SOUTH SAN FRANCISCO, CA 94080

CFO & Head of Corp. Dev.
Signatures
/s/ Alexander Nguyen, Attorney-in-Fact for Lynne Marie Sullivan11/21/2022
**Signature of Reporting PersonDate
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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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