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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	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* Ghosh Anirvan (Last) (First) (Middle) C/O UNITY BIOTECHNOLOGY, INC. 285 EAST GRAND AVENUE (Street) SOUTH SAN FRANCISCO CA 94080 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Unity Biotechnology, Inc. [ UBX ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner X Officer (give title below) Other (specify below) Chief Executive Officer
	3. Date of Earliest Transaction (Month/Day/Year) 05/11/2023
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person
	Rule 10b5-1(c) Transaction Indication Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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

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
Stock Option (Right to Buy)	$2.77	05/11/2023		A		135,000		(1)	05/11/2033	Common Stock	135,000	$2.77	135,000	D
Stock Option (Right to Buy)	$29.4	05/11/2023		D			24,999	(2)	09/13/2030	Common Stock	24,999	$0.00(3)	0	D
Stock Option (Right to Buy)	$2.77	05/11/2023		A		24,999		(2)	09/13/2030	Common Stock	24,999	$0.00(3)	24,999	D
Stock Option (Right to Buy)	$59.75	05/11/2023		D			15,000	(4)	01/29/2031	Common Stock	15,000	$0.00(5)	0	D
Stock Option (Right to Buy)	$2.77	05/11/2023		A		15,000		(4)	01/29/2031	Common Stock	15,000	$0.00(5)	15,000	D
Stock Option (Right to Buy)	$41.8	05/11/2023		D			29,000	(6)	06/24/2031	Common Stock	29,000	$0.00(7)	0	D
Stock Option (Right to Buy)	$2.77	05/11/2023		A		29,000		(6)	06/24/2031	Common Stock	29,000	$0.00(7)	29,000	D
Stock Option (Right to Buy)	$10.6	05/11/2023		D			56,666	(8)	02/09/2032	Common Stock	56,666	$0.00(9)	0	D
Stock Option (Right to Buy)	$2.77	05/11/2023		A		56,666		(8)	02/09/2032	Common Stock	56,666	$0.00(9)	56,666	D

Explanation of Responses:

1. 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 August 11, 2023, subject to the Reporting Person's continued service to Issuer through the applicable vesting date.

2. The underlying shares vest and become exercisable pursuant to the following schedule: Twenty Five Percent (25%) of the shares subject to the option vested on September 13, 2021 (the "Vesting Commencement Date"), and the remaining shares subject to the option vest in 36 successive, equal monthly installments thereafter on each monthly anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date.

3. On May 11, 2023, the option originally granted to the Reporting Person on September 13, 2020 was amended to reduce the exercise price to $2.77 per share. All of the other terms of the option remain unchanged.

4. The underlying shares vest and become exercisable pursuant to the following schedule: Twenty five percent (25%) of the shares subject to the option vested on January 29, 2022 (the "Vesting Commencement Date"), and the remaining shares subject to the option vest in 36 successive, equal monthly installments thereafter on each monthly anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date.

5. On May 11, 2023, the option originally granted to the Reporting Person on January 29, 2021 was amended to reduce the exercise price to $2.77 per share. All of the other terms of the option remain unchanged.

6. Shares subject to the stock option vest and become exercisable in successive, equal monthly installments over a 48-month period commencing on June 24, 2021 (the "Vesting Commencement Date"), so that 100% of the shares become fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date, subject to Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

7. On May 11, 2023, the option originally granted to the Reporting Person on June 24, 2021 was amended to reduce the exercise price to $2.77 per share. All of the other terms of the option remain unchanged.

8. The underlying shares vest and become exercisable pursuant to the following schedule: One Third of the shares subject to the option vest on February 9, 2023 (the "Vesting Commencement Date"), and the remaining shares subject to the option vest in 24 successive, equal monthly installments thereafter on each monthly anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service to the Issuer through the applicable vesting date.

9. On May 11, 2023, the option originally granted to the Reporting Person on February 9, 2022, was amended to reduce the exercise price to $2.77 per share. All of the other terms of the option remain unchanged.

Remarks:

	/s/ Alexander Nguyen, Attorney-in-Fact for Anirvan Ghosh	05/12/2023
	** 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).
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