Anaptys Provides Update on Business Separation and Announces Fourth Quarter and Full Year 2025 Financial Results

SAN DIEGO, March 03, 2026 (GLOBE NEWSWIRE) -- AnaptysBio, Inc. (Nasdaq: ANAB), a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics, today provided an update on the potential spin-off of its biopharma operations and reported financial results for the fourth quarter and year ended Dec. 31, 2025.

“We are approaching a defining inflection point for Anaptys, as we plan to spin-off in Q2 2026 our wholly owned biopharma portfolio into a public company, to be called First Tracks Biotherapeutics, to unlock and amplify value for investors across two distinct sets of assets,” said Daniel Faga, president and chief executive officer of Anaptys. “In our royalty portfolio,Jemperliexited Q4 2025 on a ~$1.4 billion annualized run rate, reinforcing GSK’s peak sales guidance of far more than $2.7 billion2in monotherapy indications. At the same time, our biopharma portfolio is advancing multiple attractive, high-potential assets, including ANB033, which has pipeline-in-a-product potential, initially in a Phase 1b trial for both celiac disease and eosinophilic esophagitis.”

Anaptys is a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics for autoimmune and inflammatory diseases. The company’s pipeline includes rosnilimab, a pathogenic T cell depleter, which has completed a Phase 2b trial for rheumatoid arthritis; ANB033, a CD122 antagonist, in a Phase 1b trial for celiac disease and eosinophilic esophagitis; and ANB101, a BDCA2 modulator, in a Phase 1a trial. Anaptys has also discovered and out-licensed in financial collaborations multiple therapeutic antibodies, including a PD-1 antagonist (Jemperli(dostarlimab-gxly)) to GSK and an IL-36R antagonist (imsidolimab) to Vanda Pharmaceuticals. To learn more, visitwww.AnaptysBio.comor follow us onLinkedIn.

Anaptys recently announced the intent to separate its biopharma operations from its substantial royalty assets by year-end 2026, enabling investors to align their investment philosophies and portfolio allocation with the strategic opportunities and financial objectives of each company. Learn morehere.

This press release 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 from ANB033's Phase 1b clinical trial in celiac disease and initial data from ANB033's Phase 1b clinical trial in eosinophilic esophagitis; expectations regarding the structure, infrastructure, timing and taxation of the proposed separation of companies; timing of paydown of financial obligations to Sagard; whether any partnership with rosnilimab will take place; the potential to receive any royalties or milestone payments from the Vanda Pharmaceuticals license agreement; the potential to receive any additional milestones or royalties from the GSK collaboration and timing therefor; and the projected cash runway for First Tracks Biotherapeutics. Statements including words such as “plan,” “continue,” “expect,” or “ongoing” and statements in the future tense are forward-looking statements. These forward-looking statements involve risks and uncertainties, as well as assumptions, which, if they do not fully materialize or prove incorrect, could cause its results to differ materially from those expressed or implied by such forward-looking statements. Forward-looking statements are subject to risks and uncertainties that may cause the company’s actual activities or results to differ significantly from those expressed in any forward-looking statement, including risks and uncertainties related to the company’s ability to advance its product candidates, obtain regulatory approval of and ultimately commercialize its product candidates, the timing and results of preclinical and clinical trials, the company’s ability to fund development activities and achieve development goals, the company’s ability to protect intellectual property, the ability to effect the separation of companies as described herein and other risks and uncertainties described under the heading “Risk Factors” in documents the company files from time to time with the Securities and Exchange Commission. These forward-looking statements speak only as of the date of this press release, and the company undertakes no obligation to revise or update any forward-looking statements to reflect events or circumstances after the date hereof.Contact:Nick MontemaranoExecutive Director, Investor Relations858.732.0178investors@anaptysbio.com