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Focused on Patients The Anaptys Team works to transform patient health by delivering innovative immunology therapeutics. The Anaptys team works to transform patient health by delivering innovative immunology therapeutics.
Theresa, working in the Anaptys lab
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Anaptys Overview A clinical-stage biotechnology company focused on addressing unmet medical needs in autoimmune and inflammatory diseases. We are a clinical-stage biotechnology company focused on addressing unmet medical needs in autoimmune and inflammatory diseases.
Sarah and Ben in an Anaptys conference room
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The Anaptys Difference Best-in-class antibodies designed to help dampen the inflammatory response and restore immune balance. Best-in-class antibodies designed to help dampen the inflammatory response and restore immune balance.
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Transparency, Accountability, Humility Embracing our core values to guide our efforts discovering and developing medicines that transform patient lives. Embracing our core values to guide our efforts discovering and developing medicines that transform patient lives.
May and Annie, reviewing a recent Immunology publication
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Clinical trial update Investigational Rosnilimab Phase 2 Data Update Listen to our June 2025 rosnilimab data presentation Investigational Rosnilimab Phase 2 Data Update — Listen to our June 2025 rosnilimab data presentation See presentation Listen to the webcast

Press Releases

October 13, 2025
  • Anaptys Events

Anaptys Announces Late-Breaking Oral Presentation of Complete Phase 2b Data for Rosnilimab in Rheumatoid Arthritis at Upcoming ACR Convergence 2025

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.

September 29, 2025
  • Anaptys Events

Anaptys to Provide Overview of ANB033, a CD122 antagonist, at Virtual Investor Event on Tuesday, Oct. 14

AnaptysBio, Inc. (Nasdaq: ANAB), a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics, today announced it will host a virtual investor event on ANB033, its CD122 antagonist, at 4:30pm ET / 1:30pm PT on Tuesday, Oct. 14.

September 29, 2025
  • Anaptys News

Anaptys Announces Intent to Separate Biopharma Operations from Substantial Royalty Assets by Year-end 2026

AnaptysBio, Inc. (Nasdaq: ANAB), a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics, announced today that its Board of Directors approved plans to explore separating its business into two independent, publicly traded companies, each poised for strong, sustainable growth. Referred to as “Royalty Management Co” and as “Biopharma Co” in this press release, the two companies’ different business models enable investors to align their investment philosophies and portfolio allocation with the strategic opportunities and financial objectives of each company.

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