Turnstone Biologics (TSBX) Form 3 Turnstone Biologics / Michael F. Burgess ownership change

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Burgess Michael F.

(Last) (First) (Middle)

C/O TURNSTONE BIOLOGICS CORP.

9310 ATHENA CIRCLE, SUITE 300

(Street)

LA JOLLA CA 92037

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
07/20/2023

3. Issuer Name and Ticker or Trading Symbol
Turnstone Biologics Corp. [ TSBX ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Interim Chief Medical Officer

5. 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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	(1)	09/14/2027	Common Stock	87,359	2.87	D
Employee Stock Option (Right to Buy)	(1)	06/09/2029	Common Stock	98,023	9.34	D
Employee Stock Option (Right to Buy)	(2)	12/13/2032	Common Stock	25,040	11.18	D

Explanation of Responses:

1. Immediately exercisable.

2. One fourth (1/4th) of the shares subject to the option award shall vest on September 19, 2023, and the remaining shares subject to the option shall vest in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date.

Remarks:

Exhibit List - Exhibit 24 - Power of Attorney

	/s/ P. Joseph Campisi, Jr., Attorney-in-Fact	07/20/2023
	** 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 5 (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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