Zenas BioPharma, Inc. 2025 Annual Report – Key Highlights for Investors

Overview

Zenas BioPharma, Inc., a clinical-stage global biopharmaceutical company, has released its Annual Report for the fiscal year ended December 31, 2025. The company is committed to becoming a leader in the development and commercialization of transformative immunology-based therapies for patients in need. As a clinical-stage company, Zenas does not yet have any products approved for commercial sale.

Key Financial and Corporate Highlights

• Common Stock Information: As of February 28, 2026, Zenas BioPharma had 57,361,260 shares of common stock outstanding. The company’s stock trades on the Nasdaq Global Select Market under the symbol “ZBIO.”
• Market Capitalization: As of June 30, 2025, the aggregate market value of the company’s common stock held by non-affiliates was approximately \$259.3 million, based on a closing price of \$9.69 per share.
• Company Status: Zenas BioPharma is designated as a non-accelerated filer, a smaller reporting company, and an emerging growth company under SEC rules.
• Filing Compliance: The company is in compliance with all SEC reporting requirements and has submitted all required Interactive Data Files.
• Stock Structure: All preferred stock (Series A, B, C, and Seed Convertible Preferred) shows zero shares outstanding, indicating a fully common equity structure at this time.

Critical Risks and Potential Share Price Drivers

Summary Risk Factors

• Substantial Doubt About Going Concern: The company’s independent registered public accounting firm has expressed substantial doubt about Zenas’ ability to continue as a going concern. This is significant and highly price-sensitive, as it suggests the company may not have sufficient resources to fund its operations over the next 12 months without raising additional capital.
• Continued Losses and Financing Needs: Zenas has incurred substantial losses since inception and expects to continue incurring significant and increasing losses for the foreseeable future. The company will require substantial additional financing to achieve its goals. Failure to obtain capital when needed, or on acceptable terms, could result in the delay, limitation, reduction, or termination of product development efforts.
• Limited Operating History: As a clinical-stage company with a limited history and no approved products, Zenas is subject to significant execution risk.
• Dependency on Key Personnel: The company’s future performance is highly dependent on retaining senior management and experienced scientific and clinical staff. Any departures could materially harm the business.
• Stock Volatility: The company warns that the market price of its common stock may be volatile, leading to potential substantial losses for investors.
• Potential for Dilution: The need for additional financing may lead to future equity offerings, which could dilute existing shareholders.
• No Product Revenue: With no approved products, the company currently relies entirely on investor funding and/or capital markets to finance its activities.
• General Market Risks: Broader economic, industry, geopolitical, and market conditions—including military conflict, inflation, financial instability, tariffs, trade measures, or pandemic/epidemic outbreaks—could adversely impact the company’s outlook.
• Active Trading Market Not Guaranteed: There is no assurance that an active or liquid trading market for the company’s shares will be sustained.

Other Notable Points

• Forward-Looking Statements: The report contains numerous forward-looking statements which are subject to known and unknown risks, uncertainties, and assumptions. Investors are cautioned that actual results could differ materially from those anticipated.
• Trademarks: The Zenas BioPharma name and logo are trademarks of the company.
• Annual Meeting: The company’s 2026 Annual Meeting proxy statement will be filed with the SEC and incorporated by reference into the Annual Report.

Potential Share Price Impact

The most significant, price-sensitive information in this filing is the “going concern” warning from the company’s auditors. This disclosure means there is a material risk that Zenas BioPharma may not be able to continue operations without raising substantial additional capital. This risk, alongside the company’s ongoing operating losses, lack of product revenue, and dependence on external financing, could lead to increased volatility and downward pressure on the share price.

Additionally, as an emerging growth company with no commercial products, Zenas’ value is highly speculative and tied to future clinical and regulatory milestones, capital-raising efforts, and market sentiment toward the biopharmaceutical sector.

Conclusion

Zenas BioPharma remains a high-risk, high-reward investment opportunity, typical of clinical-stage biopharma companies. Investors should closely monitor future disclosures, particularly regarding capital raises, clinical trial updates, and any changes in the company’s financial position or management.

Disclaimer: This summary is provided for informational purposes only and does not constitute investment advice. Investors should read the full Annual Report, including all risk factors and financial statements, and consult with their financial advisor before making any investment decisions. The forward-looking statements discussed are subject to change and may not reflect actual future results.

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