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.

Financial Data and Key Metrics Changes - The company reported a cash balance of just under $300 million entering the second half of the year, which is expected to sustain operations through the end of 2027 [7][75]. - The royalty asset from GSK for the drug Jemperli is projected to generate significant revenue, with estimates suggesting potential royalties of $80 million for every $1 billion in sales [79][82]. Business Line Data and Key Metrics Changes - The lead program, rozanolimab, showed positive results in clinical trials for arthritis, with stable off-drug data through nine months and a second trial for ulcerative colitis fully enrolled [5][10]. - The company has two additional drugs in clinical development: AMB033, a CD122 antagonist, and AMB101, a BCA2 modulator, both in Phase 1a trials [6][71]. Market Data and Key Metrics Changes - The market for ulcerative colitis is seen as a growth opportunity, with a significant number of patients likely to switch classes of drugs, indicating a demand for new mechanisms of action [43][44]. - The competitive landscape in rheumatoid arthritis (RA) is noted to be stagnant, with no new classes launched in over a decade, positioning the company favorably [50]. Company Strategy and Development Direction - The company is considering two primary paths forward: advancing independently in ulcerative colitis or pursuing multiple diseases, including RA and UC [45][48]. - The focus is on maximizing clinical remissions and ensuring patient tolerability to drive long-term engagement with the drug [32][36]. Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the upcoming data readouts for ulcerative colitis, emphasizing the importance of demonstrating efficacy at three and six months [19][20]. - The company is optimistic about the potential for rozanolimab to provide a differentiated treatment option in a competitive market, particularly given the observed long-lasting effects in RA [49][51]. Other Important Information - The company highlighted the significance of the royalty from GSK, which is expected to provide a valuation backstop and support future growth initiatives [82]. - There is a strong emphasis on the translational research capabilities of the company's platform, which is seen as a competitive advantage in developing new therapies [87][88]. Q&A Session Summary Question: What are the expectations around the three-month update for ulcerative colitis? - Management indicated that the primary endpoint is the change in MMS versus placebo, with expectations for clinical response and remission rates to be comparable to existing biologic classes [36][40]. Question: How does the company balance resources between ulcerative colitis and rheumatoid arthritis? - The decision-making process will depend on the six-month data from the ulcerative colitis trial, with a focus on patient safety and efficacy [41][42]. Question: What is the competitive landscape for the company's drugs? - Management noted that while there are no new RA classes in development, the company is well-positioned due to the potency and tolerability of its drug compared to competitors [50][51]. Question: What is the potential market opportunity for AMB033 in celiac disease? - The company highlighted the significant unmet need in celiac disease, with over two million patients in the U.S. and no approved treatments, making it an attractive market [61][62]. Question: How does the company view its antibody platform's value? - The platform is seen as a critical asset for developing differentiated therapies, with a focus on translational research and process development to optimize drug candidates [87][88].

Summary of AnaptysBio (ANAB) FY Conference Call - June 11, 2025 Company Overview - AnaptysBio is focused on developing antibodies targeting overactive immune cells in autoimmune inflammatory diseases, with three clinical stage programs in development [3][5][20]. Key Programs and Data - **Rozanolimab**: Lead program targeting rheumatoid arthritis (RA) with promising Phase 2b data showing 70% of patients achieving low disease activity at three months [3][13]. - **Ozanelimab**: Ongoing trial for ulcerative colitis (UC) with initial data expected by the end of 2025 [4][8]. - **ANB033**: A CD123 antagonist that started Phase 1a in October 2024 [5]. - **AMB101**: A BTCA2 modulator with plans for an R&D event later in 2025 [5]. Financial Position - Company reported $383 million in cash at the end of Q1 2025 and has access to a significant royalty stream from GSK's drug JEMPRIRLY [5][6]. Upcoming Catalysts - Key upcoming catalysts include: - Phase 2b results for rozanolimab in RA [7]. - Initial data readout for ozanelimab in UC [4][8]. - Royalty readout from GSK's lung cancer trial involving cabolumab [8][11]. Market Dynamics - The RA market has not seen a new mechanism of action approved since 2012, indicating a potential opportunity for rozanolimab [12]. - The company believes the RA market is less crowded than perceived, with few competitors in Phase III development [12][20]. Efficacy and Safety Data - Rozanolimab demonstrated significant efficacy with over 80% of patients achieving ACR20 (20% improvement) [16]. - Safety profile appears favorable with no serious infections or malignancies reported in the Phase 2b trial [50][51]. - The drug targets PD-1 high expressing T cells, aiming to restore immune homeostasis without broadly depleting T cells [46][48]. Competitive Landscape - AnaptysBio's rozanolimab is positioned against other treatments like JAK inhibitors and biologics, with a focus on achieving deeper and more durable responses [17][56]. - The company views the discontinuation of competing PD-1 drugs by other firms as a positive indicator of its drug's potential [53][56]. Future Directions - The company is considering partnerships for further development in RA and UC, with a focus on maximizing the drug's potential in various autoimmune diseases [22][33]. - AnaptysBio is exploring additional indications beyond RA and UC, leveraging its PD-1 depleting mechanism [60][62]. Conclusion - AnaptysBio is well-positioned with a strong financial base, promising clinical data, and a strategic focus on autoimmune diseases, particularly RA and UC, with significant upcoming milestones that could enhance its market position [81].

Summary of AnaptysBio (ANAB) Conference Call on June 03, 2025 Company Overview - **Company**: AnaptysBio - **Product**: Rozanolimab (ozanilumab) - **Indication**: Rheumatoid Arthritis (RA) Key Points and Arguments Clinical Trial Results 1. **Efficacy of Rozanolimab**: The phase 2b trial demonstrated significant efficacy with statistical significance on primary endpoints (DAS28 CRP and ACR20) at week 12, with all doses showing positive results compared to placebo [4][8] 2. **Durability of Response**: Patients exhibited durable responses off drug for at least two months after six months of treatment, indicating potential for extended dosing intervals [8][63] 3. **Market Potential**: The RA market generates over $10 billion in annual revenue in the US alone, highlighting the commercial opportunity for rozanolimab [8] 4. **Comparison with Competitors**: Rozanolimab showed comparable or superior results to existing therapies like RINVOQ and Orencia in terms of ACR20, ACR50, and ACR70 response rates [9][14][57] Safety Profile 5. **Safety Data**: Rozanolimab exhibited a notably unremarkable safety profile with no treatment-related serious adverse events (SAEs) reported, and a low incidence of injection site reactions [78][80] 6. **Tolerability**: Less than 2% of patients discontinued due to adverse events, indicating high tolerability compared to standard care [80][84] Mechanism of Action 7. **Targeting T Cells**: Rozanolimab demonstrated a rapid and sustained reduction in PD-1 positive T cells, which are implicated in RA pathology, supporting its mechanism of action [39][41] 8. **Gene Expression Changes**: Significant downregulation of genes associated with T cell and B cell activation was observed, indicating a broad impact on immune pathways relevant to RA and ulcerative colitis [42][43] Patient Population Insights 9. **Patient Disposition**: 95% of patients completed the all-active treatment period, demonstrating high acceptance of the treatment [23] 10. **Real-World Implications**: The trial design may have capped the maximum response rates achievable, as many patients who showed improvement were ineligible to continue treatment [21][56] Expert Commentary 11. **Clinical Relevance**: Experts highlighted the importance of the trial design and the implications of excluding patients who showed improvement but did not meet the strict criteria for continuation [66][69] 12. **Long-Term Efficacy**: The consistency of clinical responses and the durability of effects post-treatment were emphasized as significant advantages of rozanolimab [72][73] Additional Important Content - **Market Context**: The RA market has not seen a new mechanism approved since 2012, making rozanolimab's introduction particularly timely [9] - **Comparative Efficacy**: Rozanolimab's performance in the naive patient population was noted to be particularly strong, suggesting a high ceiling for response rates [35] - **Future Directions**: Ongoing studies and follow-ups will provide further insights into the long-term efficacy and safety of rozanolimab [24][62] This summary encapsulates the critical insights from the conference call regarding AnaptysBio's rozanolimab, its clinical trial results, safety profile, and market potential in the context of rheumatoid arthritis treatment.