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Quarterly Report · 10-Q

LeonaBio, Inc.

LONANASDAQEQUITYCurrent

Quarterly Report

Filed Aug 14, 2026Accepted Aug 14, 2026, 4:10 PM EDTCIK 1620463Accession 0001193125-26-352243
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Company context

We are a clinical-stage biopharmaceutical company dedicated to the development of novel therapeutics for high unmet medical needs, including treatment-resistant metastatic breast cancer and amyotrophic lateral sclerosis (“ALS”), with the goal of improving patients’ lives. Our lead drug candidates, lasofoxifene and ATH-1105, are novel, small molecule therapies with the potential to address devastating diseases where current treatment options are limited or ineffective. With a strong commitment to scientific excellence and patient-centered innovation, we aim to advance meaningful new therapies that are designed to treat patients with treatment-resistant metastatic breast cancer and ALS. Our other product candidates include ATH-1020 and new early compounds to address neurodegenerative diseases.

Current securities

Recent company filings

  1. Other EventsSep 22, 2026
  2. Other EventsAug 26, 2026
  3. SCHEDULE 13G/A filingAug 20, 2026
  4. Results of Operations and Financial Condition · Regulation FD DisclosureAug 14, 2026
  5. 4 filingJul 10, 2026

As-filed source

Primary evidence