ImmunityBio Faces Securities Fraud Class Action Lawsuit
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 6 days ago
0mins
Should l Buy IBRX?
Source: Globenewswire
- Lawsuit Background: ImmunityBio, Inc. (IBRX) is facing a securities fraud class action lawsuit for material misstatements and omissions regarding its lead biologic product, Anktiva, during the period from January 19 to March 24, 2026, which has shaken investor confidence.
- Stock Price Drop: Following an FDA warning on March 24, 2026, regarding misleading claims about Anktiva, ImmunityBio's stock plummeted by 21.12%, closing at $7.42 per share, reflecting significant market concerns about the company's future prospects.
- Investor Action: Affected investors are urged to file for lead plaintiff status by May 26, 2026, to represent other investors in the lawsuit, indicating a crisis of trust in the company's management.
- Legal Support: Kessler Topaz Meltzer & Check, LLP is offering free consultations and encouraging investors to reach out for more information on how to participate in the lawsuit, demonstrating a commitment to protecting investor rights.
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Analyst Views on IBRX
Wall Street analysts forecast IBRX stock price to fall
3 Analyst Rating
3 Buy
0 Hold
0 Sell
Strong Buy
Current: 8.190
Low
5.00
Averages
7.33
High
9.00
Current: 8.190
Low
5.00
Averages
7.33
High
9.00
About IBRX
Immunitybio, Inc. is a vertically integrated, clinical-stage biotechnology company developing therapies and vaccines that bolster the natural immune system to defeat cancers and infectious diseases. Using its applied science and platforms to treat cancers, including the development of potential cancer vaccines, as well as developing immunotherapies and cell therapies to reduce or eliminate the need for standard high-dose chemotherapy. Its platforms and their associated product candidates are designed to attack cancer and infectious pathogens by activating both the innate immune system, including NK cells, dendritic cells, and macrophages, as well as the adaptive immune system comprising B and T cells, in an orchestrated manner. Its platforms for the development of biologic product candidates include antibody-cytokine fusion proteins, vaccine vectors, and cell therapies. Its biologic commercial product candidate, Anktiva, is an IL-15 superagonist antibody-cytokine fusion protein.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
- Class Action Filed: Bronstein, Gewirtz & Grossman, LLC has announced a class action lawsuit against ImmunityBio, seeking damages for investors who purchased securities between January 19, 2026, and March 24, 2026, reflecting strong investor concern over potential fraudulent activities by the company.
- Allegations of False Statements: The complaint alleges that ImmunityBio's executive Soon-Shion materially overstated Anktiva's capabilities, leading to materially false and misleading statements regarding the company's business, operations, and prospects, which could result in long-term reputational damage for the firm.
- Investor Rights Protection: Investors are encouraged to apply to be lead plaintiffs by May 26, 2026, indicating a commitment from the legal team to protect investor rights, which may also impact the company's future stock performance.
- Legal Fee Arrangement: Bronstein, Gewirtz & Grossman, LLC states they will represent investors on a contingency fee basis, meaning they will only charge fees if they successfully recover losses, thereby reducing financial risk for investors and enhancing their willingness to participate in the lawsuit.
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- Lawsuit Background: ImmunityBio, Inc. is facing a class action lawsuit for securities fraud, alleging material misstatements and omissions regarding its lead biologic product, Anktiva, during the period from January 19 to March 24, 2026, which has significantly impacted investor confidence.
- Stock Price Plunge: Following an FDA warning on March 24, 2026, regarding false claims about Anktiva, ImmunityBio's stock price fell by $1.98, or 21.12%, closing at $7.42 per share, reflecting strong market concerns about the company's future prospects.
- Investor Action: Investors are encouraged to file for lead plaintiff status by May 26, 2026, to represent other investors in the lawsuit, with Kessler Topaz Meltzer & Check, LLP offering free case evaluations, highlighting the importance of investor protection.
- Law Firm Background: Kessler Topaz Meltzer & Check, LLP is a leading law firm specializing in securities fraud class actions, having recovered over $25 billion for clients and the classes they represent, demonstrating its significant strength and influence in the securities litigation field.
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- Class Action Notice: Rosen Law Firm reminds investors who purchased ImmunityBio (NASDAQ: IBRX) securities between January 19 and March 24, 2026, to apply as lead plaintiffs by May 26, 2026, to potentially receive compensation without any out-of-pocket costs.
- Lawsuit Background: The lawsuit alleges that executives made false or misleading statements regarding Anktiva's capabilities during the class period, resulting in investor losses when the truth emerged, highlighting significant governance and disclosure failures within the company.
- Law Firm's Advantage: Rosen Law Firm specializes in securities class actions and achieved the largest settlement against a Chinese company in 2017, demonstrating its leadership and success in the field, urging investors to select experienced legal counsel.
- Investor Action Recommendation: Investors can visit the Rosen Law Firm website or call the toll-free number for more information, emphasizing the importance of choosing the right representation in class actions to protect their interests.
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- Class Action Initiation: Purchasers of ImmunityBio, Inc. (NASDAQ: IBRX) securities between January 19 and March 24, 2026, have until May 26, 2026, to apply as lead plaintiffs in a class action lawsuit alleging violations of the Securities Exchange Act of 1934 against the company and its executives.
- False Statement Allegations: The lawsuit claims that ImmunityBio made false and misleading statements regarding its lead biologics product, Anktiva, asserting that it would allow all NMIBC patients to be cancer-free long-term, a claim that has not been substantiated.
- FDA Warning Letter Impact: A warning letter from the FDA, publicized on March 24, 2026, indicated that promotional materials misbranded Anktiva, violating the Federal Food, Drug, and Cosmetic Act, which contributed to a 21% drop in ImmunityBio's stock price.
- Legal Firm Background: Robbins Geller Rudman & Dowd LLP, a leading law firm in securities fraud litigation, recovered over $916 million for investors in 2025, highlighting its significant role in securities class action recoveries.
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- Lawsuit Background: ImmunityBio faces a securities class action lawsuit after its Chief Scientific Officer claimed in a podcast that Anktiva could treat all cancers, leading to a 21% stock price drop on March 24, 2026, and nearly $2 billion in market cap loss, severely impacting investor confidence.
- FDA Warning Details: The FDA highlighted that ImmunityBio's promotional materials misleadingly suggested Anktiva could cure all cancers without sufficient efficacy data, posing a potential public health threat and exacerbating investor concerns about the company's future.
- Investor Rights Protection: Hagens Berman is investigating whether ImmunityBio intentionally misled investors, urging those who suffered significant losses to file claims, reflecting a strong emphasis on corporate compliance and transparency.
- Market Reaction: This incident not only caused a significant stock price decline but also raised widespread doubts about ImmunityBio's future performance, potentially affecting its financing capabilities and competitive position in the market, increasing the legal risks faced by the company.
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- Class Action Notification: The Schall Law Firm reminds investors of a class action lawsuit against ImmunityBio for violations of §§10(b) and 20(a) of the Securities Exchange Act, concerning securities purchased between January 19 and March 24, 2026.
- False Statement Allegations: The complaint alleges that ImmunityBio made false and misleading statements regarding the capabilities of its Anktiva drug, resulting in investor losses when the truth emerged, highlighting significant failures in the company's disclosure practices.
- Investor Rights Protection: The firm encourages investors who purchased ImmunityBio securities during the class period to contact them by May 26, 2026, to participate in the lawsuit and seek compensation for losses, emphasizing the importance of protecting investor rights.
- Legal Proceedings Status: The class action has not yet been certified, meaning investors are not represented by an attorney during this period, and those who choose not to act will remain absent class members, underscoring the uncertainty of legal proceedings and potential risks for investors.
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