ImmunityBio Shares Triple in Three Weeks, Short-Sellers Face $500 Million Loss
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Jan 21 2026
0mins
Should l Buy IBRX?
Source: Yahoo Finance
- Price Surge: ImmunityBio's stock price has tripled over three weeks, closing at $6.92 on Wednesday with a 6.79% increase, indicating strong market interest in its immunotherapy developments, potentially attracting more investors.
- Volume Spike: Trading volume reached 93.5 million shares on Wednesday, about 357% above the three-month average of 20.5 million shares, signaling a significant rise in investor attention that could lead to further price volatility.
- Short-Seller Losses: With 35% of the public float held short, short-sellers now face nearly $500 million in paper losses, reflecting optimistic market sentiment towards ImmunityBio's future developments, which may prompt short-covering to mitigate losses.
- Market Reaction: Although there was no specific news driving the price increase, the actions of short-sellers covering their positions combined with recent positive developments have contributed to the stock's rise, showcasing ongoing interest in the biotechnology sector.
Trade with 70% Backtested Accuracy
Stop guessing "Should I Buy IBRX?" and start using high-conviction signals backed by rigorous historical data.
Sign up today to access powerful investing tools and make smarter, data-driven decisions.
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: 7.380
Low
5.00
Averages
7.33
High
9.00
Current: 7.380
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.
- Trial Statistical Power Confirmed: The Independent Data Monitoring Committee (IDMC) confirmed that ImmunityBio's pivotal randomized trial for Anktiva is adequately powered with the current 366 participants, ensuring the study's effectiveness in detecting clinically meaningful differences in complete response rates.
- Clinical Trial Progress: The QUILT-2.005 trial evaluates Anktiva in combination with Bacillus Calmette-Guérin (BCG) for patients with non-muscle invasive bladder cancer, showing promising results from earlier phases with prolonged complete remission durations, enhancing confidence for subsequent research.
- FDA Regulatory Dynamics: The U.S. FDA reviewed direct-to-consumer advertising for Anktiva, deeming it misleading and unsupported in claims of curing or preventing cancer, highlighting the importance of compliance in promotional materials.
- Analyst Ratings and Targets: ImmunityBio's stock carries a Buy rating with an average price target of $12.57, while D. Boral Capital maintains a target of $23.00, reflecting market confidence in the company's future potential.
See More
- Class Action Initiated: Bragar Eagel & Squire, P.C. has announced a class action lawsuit against ImmunityBio for investors who purchased securities between January 19, 2026, and March 24, 2026, indicating significant legal risks for the company.
- False Statement Allegations: The lawsuit alleges that ImmunityBio's executive Patrick Soon-Shiong materially overstated Anktiva's capabilities, leading to misleading statements about the company's business and prospects, which could result in investor losses.
- Investor Rights Protection: Investors must apply by May 26, 2026, to be appointed as lead plaintiff in the lawsuit, highlighting the legal process's role in protecting investor rights and potentially impacting the company's future stock performance.
- Law Firm Background: Bragar Eagel & Squire, P.C. is a nationally recognized law firm specializing in shareholder rights, focusing on securities and commercial litigation, demonstrating its expertise and influence in investor protection.
See More
- Class Action Initiated: Robbins LLP reminds shareholders that a class action has been filed on behalf of investors who purchased ImmunityBio, Inc. (NASDAQ: IBRX) securities between January 19, 2026, and March 25, 2026, highlighting concerns over potential misleading actions by the company.
- FDA Warning Letter Exposed: The complaint alleges that CEO Soon-Shiong materially overstated Anktiva's capabilities, with a warning letter from the FDA on March 24, 2026, indicating that promotional communications misled the public by claiming Anktiva could cure and prevent all cancers.
- Significant Stock Drop: Following the FDA warning letter, ImmunityBio's stock fell by 21% on March 24, 2026, losing $1.98 per share and closing at $7.42, reflecting market concerns about the company's future prospects.
- Shareholder Action Guidance: Shareholders wishing to serve as lead plaintiffs in the class action must submit their papers by May 26, 2026, indicating a growing emphasis on corporate governance and shareholder rights protection.
See More
- Price Range Analysis: The XBI ETF's 52-week low is $66.66 per share, with a high of $132.09, and a recent trading price of $119.75, indicating stability within its volatility range that may attract investor interest.
- Technical Analysis Tool: Comparing the current share price to the 200-day moving average can provide valuable insights for investors, aiding in market trend assessment and timing of investments.
- ETF Trading Mechanism: ETFs trade like stocks, where investors buy and sell 'units' that can be created or destroyed based on demand, impacting the liquidity and market performance of the ETF.
- Inflows and Outflows Monitoring: Weekly monitoring of changes in ETF shares outstanding focuses on significant inflows (new units created) or outflows (old units destroyed), which will affect the underlying holdings of the ETF and influence market dynamics.
See More
- FDA Warning Letter: On March 24, 2026, ImmunityBio received a warning letter from the FDA indicating that Executive Chairman Patrick Soon-Shiong made false claims on a podcast about the company's lead biologic product, Anktiva, stating it could 'cure and even prevent all cancer,' leading the FDA to deem the advertising misleading.
- Stock Price Plunge: Following the FDA's warning, ImmunityBio's stock price fell by $1.98, or 21.12%, closing at $7.42 per share, which directly impacted investors and raised concerns about the company's compliance with federal regulations.
- Legal Consultation Opportunity: The Law Offices of Howard G. Smith announced an investigation into ImmunityBio, encouraging affected investors to reach out to explore potential claims for recovering losses, highlighting the importance of legal support for investor rights.
- Investor Rights Protection: This investigation aims to assist impacted investors in understanding their legal rights and may provide avenues for loss recovery, emphasizing the necessity for investors to seek legal assistance when companies face compliance issues.
See More
- Class Action Initiation: ImmunityBio, Inc. (NASDAQ: IBRX) is facing a class action lawsuit due to alleged false statements regarding its lead product Anktiva, with a deadline of May 26, 2026, for investors to seek lead plaintiff status for losses incurred between January 19, 2026, and March 24, 2026.
- FDA Warning Letter Impact: A warning letter from the FDA dated March 13, 2026, highlighted misleading advertising practices regarding Anktiva, resulting in a 21% drop in stock price following the news, indicating significant market concerns over the company's compliance and credibility.
- False Advertising Allegations: The lawsuit claims that ImmunityBio failed to disclose that Anktiva's long-term efficacy was unproven and falsely marketed it as a cancer vaccine, which not only harmed investor interests but could also adversely affect the company's future market performance.
- Law Firm Background: Robbins Geller Rudman & Dowd LLP, a leading firm in securities fraud and shareholder rights litigation, recovered over $916 million for investors in 2025, showcasing its strong capabilities and influence in handling similar cases.
See More











