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* Gupta Rishi (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 X 10% Owner Officer (give title below) Other (specify below)	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
Series B-1 Preferred Stock	(1)	(1)	Common Stock	937,372	(1)	I	See footnotes(2)(3)
Series B-2 Preferred Stock	(1)	(1)	Common Stock	1,249,829	(1)	I	See footnotes(2)(3)
Series C Preferred Stock	(1)	(1)	Common Stock	266,240	(1)	I	See footnotes(2)(3)
Series D Preferred Stock	(1)	(1)	Common Stock	229,158	(1)	I	See footnotes(2)(3)

Explanation of Responses:

1. Each share of Series B-1 Preferred Stock, Series, Series B-2 Preferred Stock, Series C Preferred Stock and Series D Preferred Stock will automatically convert into shares of Common Stock on a 7.9872 for 1 basis immediately prior to the closing of the Issuer's initial public offering and have no expiration date.

2. These securities are held of record by OrbiMed Private Investments VI, LP ("OPI VI"). OrbiMed Capital GP VI LLC ("GP VI") is the general partner of OPI VI and OrbiMed Advisors LLC ("OrbiMed Advisors") is the managing member of GP VI. By virtue of such relationships, OrbiMed Advisors and GP VI may be deemed to have voting power and investment power over the securities held by OPI VI and, as a result, may be deemed to have beneficial ownership over such securities. OrbiMed Advisors exercises voting and investment power through a management committee comprised of Carl L. Gordon, Sven H. Borho, and W. Carter Neild, each of whom disclaims beneficial ownership of the securities held by OPI VI. Each of the Reporting Person, OrbiMed Advisors, and GP VI disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Exchange Act, except to the extent of his or its pecuniary interest, if any.

3. This report shall not be deemed an admission that any of the Reporting Person, OrbiMed Advisors, or GP VI is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

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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Exhibit 24

POWER OF ATTORNEY

(For Executing Form ID and Forms 3, 4 and 5)

	Know all by these presents, that the undersigned hereby constitutes and
appoints each of Divakar Gupta, Ryan Sansom, Cathy Rude and Jason Minio of
Cooley LLP, and Venkat Ramanan and P. Joseph Campisi, Jr. of Turnstone Biologics
Corp. (the "Company"), signing individually, the undersigned's true and lawful
attorneys-in-fact and agents to:

	(1)	Prepare, execute in the undersigned's name and on the undersigned's behalf,
and submit to the Securities and Exchange Commission (the "SEC") a Form ID,
Uniform Application for Access Codes to File on EDGAR, including amendments
thereto, and any other documents necessary or appropriate to obtain codes and
passwords enabling the undersigned to make electronic filings with the SEC of
reports required by Section 16(a) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), or any rule or regulation thereunder;

	(2)	Prepare, execute in the undersigned's name and on the undersigned's behalf,
and submit to the SEC Form ID and Forms 3, 4 and 5 (including amendments thereto
and joint filing agreements in connection therewith) in accordance with Section
16(a) of the Exchange Act and the rules thereunder in the undersigned's capacity
as an officer, director or beneficial owner of more than 10% of a registered
class of securities of the Company;

	(3)	Do and perform any and all acts for and on behalf of the undersigned that
may be necessary or desirable to prepare and execute any such Form ID and Forms
3, 4 or 5 (including amendments thereto and joint filing agreements in
connection therewith) and file such forms with the SEC and any stock exchange,
self-regulatory association or any similar authority; and

	(4)	Take any other action of any type whatsoever in connection with the
foregoing that, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required of the undersigned, it being
understood that the documents executed by the attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as the attorney-in-fact may approve in the
attorney-in-fact's discretion.

	The undersigned hereby grants to each such attorney in fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney in fact, or such attorney
in fact's substitute or substitutes, shall lawfully do or cause to be done by
virtue of this power of attorney and the rights and powers herein granted.  The
undersigned acknowledges that the foregoing attorneys-in-fact, and their
substitutes, in serving in such capacity at the request of the undersigned, are
not assuming (nor is the Company assuming) any of the undersigned's
responsibilities to comply with Section 16 of the Exchange Act.

	This Power of Attorney shall remain in full force and effect until the earliest
to occur of (a) the undersigned is no longer required to file Form ID or Forms
3, 4 and 5 with respect to the undersigned's holdings of and transactions in
securities issued by the Company, (b) revocation by the undersigned in a signed
writing delivered to the Company and the foregoing attorneys-in fact or (c) as
to any attorney-in-fact individually, until such attorney-in-fact is no longer
employed by the Company or Cooley LLP, as applicable.

	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of the date written below.


Date:  6/5/2023
By: /s/ Rishi Gupta
Rishi Gupta