Exhibit 99.1 Zenas BioPharma Announces Key 2024 Accomplishments and 2025 Business Objectives to Support the Global Development and Commercialization of Therapies for Autoimmune Diseases WALTHAM, Mass, February 5, 2025 (GLOBE NEWSWIRE) – Zenas BioPharma, Inc. ("Zenas" or the "Company") (Nasdaq: ZBIO), a clinical-stage global biopharmaceutical company committed to being a leader in the development and commercialization of therapies for autoimmune diseases, today announced its 2024 accomplishments, outlined it ...

- Advancing Phase 2 and Phase 3 trials of obexelimab, a unique CD-19 x FcγRIIb inhibitor of B cell function- -Topline results from Phase 2 Trial in Relapsing Multiple Sclerosis (MoonStone) expected in third quarter 2025- -Topline results from pivotal Phase 3 Trial in Immunoglobulin G4-Related Disease (INDIGO) expected year-end 2025- - Enrollment of Phase 2 Trial in Systemic Lupus Erythematosus (SunStone) expected to be completed in 2025- - Out-licensed greater-China anti-IGF-1R Thyroid Eye Disease programs ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-42270 Zenas BioPharma, Inc. (Exact name of registrant as specified in its charter) Delaware 93-2749244 (S ...

Exhibit 99.1 Zenas BioPharma Reports Third Quarter 2024 Financial Results and Provides Corporate Updates -Completed initial public of ering, raising $258.7 million in gross proceeds, to fund the expanded clinical development of lead product candidate, obexelimab, and support company growth strategy- -Concluded targeted enrollment of Phase 3 INDIGO trial evaluating obexelimab for the treatment of Immunoglobulin G4-Related Disease (IgG4-RD)- -Advancing multiple obexelimab Phase 2 and Phase 3 clinical trials w ...

-Completed initial public offering, raising $258.7 million in gross proceeds, to fund the expanded clinical development of lead product candidate, obexelimab, and support company growth strategy- -Concluded targeted enrollment of Phase 3 INDIGO trial evaluating obexelimab for the treatment of Immunoglobulin G4-Related Disease (IgG4-RD)- -Advancing multiple obexelimab Phase 2 and Phase 3 clinical trials with results expected throughout 2025- WALTHAM, Mass., Nov. 12, 2024 (GLOBE NEWSWIRE) -- Zenas BioPharma, ...

-INDIGO is the largest clinical trial conducted in patients living with IgG4-RD- -Topline INDIGO results expected by the end of 2025- WALTHAM, Mass., Nov. 12, 2024 (GLOBE NEWSWIRE) -- Zenas BioPharma, Inc. (“Zenas” or the “Company”) (Nasdaq: ZBIO), a clinical-stage global biopharmaceutical company committed to being a leader in the development and commercialization of transformative immunology-based therapies, today announced the completion of its targeted enrollment for the Phase 3 INDIGO trial of its lead ...

WALTHAM, Mass, Nov. 07, 2024 (GLOBE NEWSWIRE) -- Zenas BioPharma, Inc. ("Zenas" or the "Company") (Nasdaq: ZBIO), a clinical-stage global biopharmaceutical company committed to being a leader in the development and commercialization of transformative immunology-based therapies, today announced the Company's participation at the following healthcare investor conferences: Guggenheim's Inaugural Healthcare Innovation Conference on November 12, 2024, in Boston, MA Jefferies London Healthcare Conference on Novem ...