SR One Capital Management Form 3 Zenas BioPharma / Simeon George 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^*

SR ONE CAPITAL MANAGEMENT, LLC

(Last) (First) (Middle)

985 OLD EAGLE SCHOOL ROAD

SUITE 511

(Street)

WAYNE PA 19087

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
09/12/2024

3. Issuer Name and Ticker or Trading Symbol
Zenas BioPharma, Inc. [ ZBIO ]

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

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)

	Form filed by One Reporting Person
X	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 C Convertible Preferred Stock	(1)	(1)	Common Stock	1,505,388	(1)	I	See Note 2(2)
Series C Convertible Preferred Stock	(1)	(1)	Common Stock	501,796	(1)	I	See Note 3(3)
Series C Convertible Preferred Stock	(1)	(1)	Common Stock	669,061	(1)	I	See Note 4(4)

1. Name and Address of Reporting Person^*

SR ONE CAPITAL MANAGEMENT, LLC

(Last) (First) (Middle)

985 OLD EAGLE SCHOOL ROAD

SUITE 511

(Street)

WAYNE PA 19087

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

George Simeon

(Last) (First) (Middle)

985 OLD EAGLE SCHOOL ROAD

SUITE 511

(Street)

WAYNE PA 19087

(City) (State) (Zip)

Explanation of Responses:

1. Each share of Series C Convertible Preferred Stock is convertible into shares of the Issuer's Common Stock on a 8.6831-for-1 basis and has no expiration date. The Series C Convertible Preferred Stock will automatically convert into common stock upon the closing of the Issuer's initial public offering.

2. The reported securities are held directly by SR One Capital Fund II Aggregator, LP. SR One Capital Partners II, LP is the general partner of SR One Capital Fund II Aggregator, LP, and SR One Capital Management, LLC is the general partner of SR One Capital Partners II, LP. Simeon George, M.D. is the managing member of SR One Capital Management, LLC. Each of SR One Capital Partners II, LP, SR One Capital Management, LLC and Dr. George may be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.

3. The reported securities are held directly by AMZL, LP. SR One Capital SMA Partners, LP is the general partner of AMZL, LP, and SR One Capital Management, LLC is the general partner of SR One Capital SMA Partners, LP. Simeon George, M.D. is the managing member of SR One Capital Management, LLC. Each of SR One Capital SMA Partners, LP, SR One Capital Management, LLC and Dr. George may be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.

4. The reported securities are held directly by SR One Capital Opportunities Fund I, LP. SR One Capital Opportunities Partners I, LP is the general partner of SR One Capital Opportunities Fund I, LP, and SR One Capital Management, LLC is the general partner of SR One Capital Opportunities Partners I, LP. Simeon George, M.D. is the managing member of SR One Capital Management, LLC. Each of SR One Capital Opportunities Partners I, LP, SR One Capital Management, LLC and Dr. George may be deemed to have shared power to vote or dispose of these shares, and each disclaims beneficial ownership of the shares except to the extent of any pecuniary interest therein.

	/s/ Sasha Keough, attorney-in-fact for SR One Capital Management, LLC	09/12/2024
	/s/ Sasha Keough, attorney-in-fact for Simeon George	09/12/2024
	** Signature of Reporting Person	Date
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