EX-32.2 5 zbio-20250331xex32d2.htm EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

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Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Zenas BioPharma, Inc. (the “Company”) hereby certifies, to the best of my knowledge, that:

| (i) | the accompanying Quarterly Report on Form 10-Q of the Company for the fiscal quarter ended March 31, 2025 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

| (ii) | the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

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Dated: May 15, 2025 | By: | /s/ Jennifer Fox
​ | ​ | Name: | Jennifer Fox
​ | ​ | Title: | Chief Business Officer and Chief Financial Officer
​ | ​ | ​ | (Principal Financial and Accounting Officer)

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