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Summary of AnaptysBio Investor Event on ANB033 Company Overview - **Company**: AnaptysBio (NasdaqGS:ANAB) - **Focus**: Development of ANB033, a CD123 antagonist for autoimmune and inflammatory diseases, particularly celiac disease and eosinophilic esophagitis (EoE) [2][3][61] Key Points on ANB033 and Its Development - **Separation of Operations**: In 2026, AnaptysBio plans to separate its biopharma operations from its royalty assets to create two independent publicly traded companies [2] - **Clinical Trials**: - A Phase 1b trial for celiac disease has been initiated, with plans for a second indication trial in 2026 [3][26] - The trial design includes two cohorts: one for patients with minimal mucosal damage and another for those with significant damage [55][56] Mechanism of Action - **Targeting CD123**: ANB033 is designed to inhibit IL-15 and IL-2 signaling pathways, which are crucial in the activation and proliferation of pathogenic immune cells [4][12][20] - **Therapeutic Potential**: The drug has broad therapeutic potential across various areas, including gastrointestinal and dermatological diseases [5][26] Market Opportunity - **Celiac Disease**: - Approximately 2 million celiac patients in the U.S., with a projected 250,000 diagnosed non-responsive patients by early 2030s [8][61] - The market for celiac disease treatments is estimated to exceed $4 billion, with no approved therapies currently available [8][62] - **EoE Market**: - EoE is characterized by inflammation of the esophagus, with limited treatment options available [63] - Dupilumab, the only approved therapy, is expected to generate $2 billion in sales by 2025, indicating a significant market opportunity for ANB033 [63] Clinical Data and Safety Profile - **Phase 1a Trial Results**: - ANB033 demonstrated a favorable safety profile with no severe adverse events reported [36] - The drug maintained full receptor occupancy for over 30 days, with a dose-response observed on relevant pharmacodynamic biomarkers [36] - **Impact on Immune Cells**: - ANB033 significantly reduced CD123 expressing CD8 T cells and NK cells without compromising overall immune competency [37][39] Unmet Medical Need - **Celiac Disease Treatment**: Current treatment options are limited to a gluten-free diet, which is often poorly tolerated [41][62] - **Patient Population**: Many patients continue to suffer from symptoms such as anemia and fatigue despite adherence to a gluten-free diet [41][62] Future Directions - **Additional Indications**: AnaptysBio is exploring other potential indications for ANB033, including EoE, with plans to advance one additional proof of concept trial in 2026 [26][61] - **Regulatory Engagement**: The FDA has shown enthusiasm for new treatments for celiac disease, emphasizing the need for therapies that can prevent symptoms and improve histological injury [51] Conclusion - **Strategic Positioning**: AnaptysBio is well-positioned to address significant unmet needs in the treatment of celiac disease and EoE with ANB033, leveraging its unique mechanism of action and favorable safety profile to capture a substantial market opportunity [62][63]

SAN DIEGO, Oct. 13, 2025 (GLOBE NEWSWIRE) -- AnaptysBio, Inc. (Nasdaq: ANAB), a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics, today announced that complete data from the Phase 2b trial of rosnilimab, a pathogenic T cell depleter, in rheumatoid arthritis (RA), was accepted for a late-breaking oral presentation at American College of Rheumatology (ACR) Convergence 2025 in Chicago, IL, Oct. 24 – 29, 2025. “We are honored to be selected by ACR to present our late ...

Core Viewpoint - AnaptysBio, Inc. plans to separate its business into two independent, publicly traded companies: Royalty Management Co and Biopharma Co, allowing investors to align their investment strategies with each company's objectives [1][2] Royalty Management Co Profile - Royalty Management Co will manage rights to significant royalties from GSK's Jemperli and milestones from Vanda Pharmaceuticals, focusing on maximizing shareholder value [3] - GSK reported Jemperli sales of $262 million in Q2 2025 and $482 million in the first half of 2025, with peak sales guidance of approximately $2.7 billion for Jemperli in monotherapy indications [4] - For imsidolimab, Royalty Management Co could receive up to $35 million in future sales milestones and a 10% royalty on net sales, with Vanda planning FDA BLA submission for generalized pustular psoriasis in the second half of 2025 [5] Biopharma Co Profile - Biopharma Co will focus on developing therapeutics for autoimmune and inflammatory diseases, including rosnilimab, ANB033, and ANB101, with rosnilimab having completed a Phase 2b trial in rheumatoid arthritis [6] - Anaptys is exploring strategic options for rosnilimab, which may influence its economic value allocation between the two companies [7] - Biopharma Co is expected to have a new name and sufficient capital for at least two years of operations, with the separation anticipated to be completed by year-end 2026 [7] Leadership and Market Reaction - Daniel Faga, the current president and CEO of Anaptys, is expected to lead Biopharma Co post-separation [8] - Following the announcement, ANAB stock increased by 28.95%, reaching $30.01 [8]

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PresentationI will now hand the conference over to your speaker host, Dan Faga, President and CEO of Anaptys. Please go ahead, sir.Good day. Thank you for standing by. Welcome to the Anaptys conference call. [Operator Instructions] Please note that today's conference may be recorded.Daniel FagaPresident, CEO & Director Good afternoon and thank you for joining us today. We are excited to discuss today the further evolution of Anaptys with our intention to separate our biopharma operations from our substantia ...

PresentationI will now hand the conference over to your speaker host, Dan Faga, President and CEO of Anaptys. Please go ahead, sir.Good day. Thank you for standing by. Welcome to the Anaptys conference call. [Operator Instructions] Please note that today's conference may be recorded.Daniel FagaPresident, CEO & Director Good afternoon and thank you for joining us today. We are excited to discuss today the further evolution of Anaptys with our intention to separate our biopharma operations from our substantia ...

Summary of AnaptysBio Conference Call Company Overview - **Company**: AnaptysBio (NasdaqGS:ANAB) - **Date**: September 29, 2025 - **Context**: Discussion on the separation of biopharma operations from royalty assets to create two independent companies Key Points Company Strategy and Separation - AnaptysBio plans to separate its biopharma operations from its royalty assets to maximize value by creating two distinct companies: Royalty Management Co. and BioPharma Co. [2][5] - The separation is expected to be completed by the end of 2026, allowing flexibility to assess strategic decisions regarding the development of key assets [21][52] Financial Position - AnaptysBio is well-capitalized with approximately $300 million in cash as of Q2 2025, providing a cash runway through the end of 2027 [4] - The company has repurchased about 10% of its outstanding shares, indicating confidence in its undervalued stock [7] Royalty Management Co. - Royalty Management Co. will manage future royalties and milestones from collaborations with GSK and Vanda, focusing on protecting and returning value to shareholders [5][6] - The royalty structure for JEMPRILLY starts at 8% for the first $1 billion in sales and ramps up to 25% for revenues exceeding $2.5 billion [12] - In a scenario where GSK sells $2.7 billion of JEMPRILLY, AnaptysBio could receive $390 million in royalties [12] BioPharma Co. Development Pipeline - BioPharma Co. will continue to develop programs targeting autoimmune and inflammatory diseases, including rozanolimab, AMD033, and AMD101 [6][15] - Rozanolimab has shown positive phase 2b data in rheumatoid arthritis, with a favorable safety profile [17] - Upcoming data for ulcerative colitis is expected in November or December 2025, with longer-term data anticipated in 2026 [18][19] Market Performance and Growth Potential - JEMPRILLY has demonstrated significant commercial uptake, with Q2 2025 sales reaching $262 million, nearly doubling from Q2 2024 [10] - GSK's peak sales guidance for JEMPRILLY is over £2 billion, with Wall Street consensus gradually increasing [10][11] - The company anticipates continued growth driven by market penetration and potential indication expansions [11] Strategic Considerations - The separation is designed to allow investors to align their investment strategies with the distinct business models of each company [7] - AnaptysBio is exploring various strategic paths for rozanolimab, including potential partnerships or independent advancement [20][44] - The separation is not influenced by recent clinical data but aims to protect the value of royalties and enhance overall asset management [28][43] Tax Implications - The separation is anticipated to be a taxable event, with efforts focused on minimizing tax impacts for both the company and shareholders [21][70] Additional Insights - The company emphasizes the transformative potential of the separation, aiming for sustainable growth and maximizing shareholder value [22] - Analysts express confidence in the strategic split, suggesting it could unlock value that has not been fully realized under the current structure [57] This summary encapsulates the key discussions and strategic directions outlined during the AnaptysBio conference call, highlighting the company's focus on maximizing value through operational separation and continued development of its biopharma portfolio.

Strategic Separation to Maximize Shareholder Value Sept. 29, 2025 Safe harbor statement This presentation and any accompanying oral presentation contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to: the timing of the release of data from the Company's clinical trials, including initial data for rosnilimab's Phase 2 clinical trial in ulcerative colitis; expectations regarding the structure ...

Core Insights - AnaptysBio, Inc. will host a virtual investor event on its CD122 antagonist, ANB033, on October 14, 2025 [1][2] - The event will feature Dr. Joseph A. Murray from the Mayo Clinic and members of Anaptys management, followed by a Q&A session [2] - A live webcast of the presentation will be available on Anaptys' investor website, with a replay accessible afterward [3] About ANB033 - ANB033 is a potentially best-in-class CD122 antagonist targeting CD122, which is crucial for the maintenance and survival of certain immune cells [4] - The drug is currently in a Phase 1b trial for celiac disease, marking its initial indication [4] About AnaptysBio - AnaptysBio is focused on innovative immunology therapeutics for autoimmune and inflammatory diseases [5] - The company's lead program, rosnilimab, has completed a Phase 2b trial for rheumatoid arthritis and is in a Phase 2 trial for ulcerative colitis [5] - Anaptys' pipeline includes ANB033 and ANB101, both in Phase 1 trials, and has successfully out-licensed multiple therapeutic antibodies [5]