What Changed
Price Move History
- Daily moves over 5%
- 72 252 sessions, September 19, 2025 to September 21, 2026
- Largest daily move
- +44.8% close of September 30, 2025
- 1-year change
- +126.1% closing prices, September 19, 2025 to September 21, 2026
Company Description
Zura Bio Limited (Nasdaq: ZURA) is a clinical-stage, multi-asset immunology company focused on developing novel antibodies for serious autoimmune and inflammatory diseases with unmet medical needs. Operating in the biotechnology research and development space, Zura Bio is advancing a pipeline of dual-pathway product candidates designed to target key mechanisms of immune system imbalance, with the stated goal of improving efficacy, safety, and dosing convenience for patients.
The company’s lead product candidate is tibulizumab (ZB-106), an investigational, humanized, tetravalent dual-antagonist antibody engineered to bind to and neutralize both interleukin‑17A (IL‑17A) and B‑cell activating factor (BAFF). According to Zura Bio’s disclosures, tibulizumab is described as the first and, at the time of the referenced communications, only in-class bispecific antibody designed to target the IL‑17 and BAFF pathways. These pathways are reported by the company as being involved in the pathogenesis of autoimmune and inflammatory conditions such as hidradenitis suppurativa (HS) and systemic sclerosis (SSc).
Tibulizumab is being evaluated in two Phase 2 clinical studies in adults. The TibuSHIELD trial is a global, randomized, double-blind, placebo-controlled Phase 2 study in adults with moderate to severe HS. It is designed to assess safety, tolerability, and efficacy over a 28‑week period, including a 16‑week primary efficacy assessment and a 12‑week safety follow‑up, with an optional open-label extension. Participants are randomized to receive different doses of tibulizumab or placebo. The primary endpoint is the percent change from baseline in total abscess and nodule count at Week 16, with secondary endpoints that include the proportion of participants achieving HiSCR50 or HiSCR75, as defined by reductions in abscess and nodule counts without worsening of abscesses or draining fistulas.
The second Phase 2 study, TibuSURE, is a global clinical trial evaluating tibulizumab in adults with systemic sclerosis. Zura Bio reports that this trial was initiated in late 2024 and continues to enroll patients. Both TibuSHIELD and TibuSURE are intended to generate data that may clarify the potential role of dual IL‑17A and BAFF inhibition in complex autoimmune diseases where multiple inflammatory pathways are activated.
Beyond tibulizumab, Zura Bio’s pipeline includes additional investigational antibodies that have completed Phase 1/1b studies. Crebankitug (ZB‑168) is described by the company as a dual-pathway product candidate where inhibition of interleukin‑7 (IL‑7) and thymic stromal lymphopoietin (TSLP) may offer therapeutic benefit in immune‑mediated diseases. Zura Bio reports that it is conducting preclinical and translational research and collaborating with academic researchers and key opinion leaders to better understand the clinical potential of crebankitug and to inform future development decisions.
Torudokimab (ZB‑880) is another product candidate in Zura Bio’s portfolio that has completed Phase 1/1b studies. The company describes torudokimab as being evaluated for its potential role in inflammatory and respiratory diseases, and notes that it is monitoring external clinical data from IL‑33/ST2‑targeted programs in indications such as asthma and chronic obstructive pulmonary disease. Insights from these external programs are expected by the company to help guide future development plans for torudokimab.
Zura Bio emphasizes that tibulizumab, crebankitug, and torudokimab are investigational compounds that have not been approved for marketing by the U.S. Food and Drug Administration or any other regulatory authority, and that their safety and efficacy have not yet been established. The company also notes that it has not completed any clinical trials and has no products approved for commercial sale, and that it has incurred significant losses since inception as it invests in research and development and related activities.
From a corporate and financial perspective, Zura Bio describes itself as an emerging growth company that has strengthened its financial position through private placement financings and other capital markets activities, with cash and cash equivalents disclosed in its public filings and press releases as expected to support planned operations for multiple years. The company highlights the establishment of a Scientific Advisory Board composed of specialists in rheumatology, dermatology, and immunology, and notes the appointment of experienced executives and board members with backgrounds in immunology, biotechnology, and financial leadership to support its clinical and organizational growth.
Regulatory filings and company communications indicate that Zura Bio is incorporated in the Cayman Islands and maintains principal executive offices in Henderson, Nevada. It files periodic reports, including Annual Reports on Form 10‑K and Quarterly Reports on Form 10‑Q, as well as current reports on Form 8‑K, with the U.S. Securities and Exchange Commission. These filings provide additional detail on its risk factors, financial condition, governance matters, and material corporate events such as leadership transitions and executive compensation arrangements.
According to its disclosures, Zura Bio’s strategy centers on developing a portfolio of therapeutic indications for tibulizumab, crebankitug, and torudokimab across autoimmune and inflammatory diseases, including systemic sclerosis, hidradenitis suppurativa, and other conditions with significant unmet needs. The company’s communications frequently reference its intention to demonstrate the efficacy, safety, and dosing convenience of its product candidates, and to generate high‑quality clinical data that may clarify the benefits of dual‑pathway antibody approaches in immunology.
Stock Performance
Zura Bio (ZURA) closed at $4.50 on September 21, 2026. Over the past 12 months, the price has gained 126.1%.
ZURA Metrics & Rankings
Price returns through September 21, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
Zura Bio has 10 recent news articles. Of the recent coverage, 5 articles coincided with positive price movement and 5 with negative movement. Key topics include earnings, clinical trial. View all ZURA news →
SEC Filings
Zura Bio has filed 10 recent SEC filings, including 4 Form 144, 3 Form 8-K, 1 Form 3, 1 Form 4. The most recent filing was submitted on August 18, 2026. SEC filings provide transparency into a company's financial condition, material events, and regulatory compliance. View all ZURA SEC filings →
Financial Highlights
operating income reached -$75.2M, and net income was -$68.7M. Diluted earnings per share stood at -$1.06. The company generated -$64.8M in operating cash flow. With a current ratio of 9.05, the balance sheet reflects a strong liquidity position.
Upcoming Events
TibuSURE topline data
TibuSHIELD topline data
TibuSHIELD topline data
TibuSURE data readout
NEXUS-PMR trial start
Third Phase 2 planned
Topline results anticipated
TibuSURE topline data
TibuSURE topline data
Option vesting period
Zura Bio has 12 upcoming scheduled events. The next event, "TibuSURE topline data", is scheduled for October 1, 2026 (in 8 days). Investors can track these dates to stay informed about potential catalysts that may affect the ZURA stock price.
Short Interest History
Short interest in Zura Bio (ZURA) currently stands at 11.1 million shares, down 3.0% from the previous reporting period, representing 14.4% of the float. Since September 2025, short interest has increased by 441.2%. This moderate level of short interest indicates notable bearish positioning. The 5.8 days to cover indicates moderate liquidity for short covering.
Days to Cover History
Days to cover for Zura Bio (ZURA) currently stands at 5.8 days, down 54.8% from the previous period. This moderate days-to-cover ratio suggests reasonable liquidity for short covering, requiring about a week of average trading volume. The days to cover has increased 481% over the past year, indicating improving liquidity conditions. The ratio has shown significant volatility over the period, ranging from 1.0 to 19.6 days.
ZURA Company Profile & Sector Positioning
Zura Bio (ZURA) operates in the Biotechnology industry within the broader Healthcare sector and is listed on the NASDAQ.
Investors comparing ZURA often look at related companies in the same sector, including Avalo Therapeutics, Inc. (AVTX), Actuate Therapeutics, Inc. (ACTU), Forte Biosciences, Inc. (FBRX), Inhibikase Therapeutics, Inc. (IKT), and Equillium, Inc. (EQ). Comparing financial metrics, valuation ratios, and stock performance across these peers can help investors evaluate ZURA's relative position within its industry.