secwatch.observer — SEC 8-K summary
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Issuer:     LeonaBio, Inc. (LONA)
CIK:        0001620463
Form:       8-K
Filed at:   2025-12-18T23:59:59+00:00
Accession:  0001193125-25-323692
Event type: m_and_a
Sentiment:  neutral
Materiality: 0.85
Item codes: 1.01, 3.02, 7.01, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Athira Pharma raises ~$90M via PIPE and licenses lasofoxifene from Sermonix
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- PIPE gross proceeds ~$90M; investors include Commodore, TCGX, Perceptive; priced at $6.35/share with warrants.
- Sermonix license grants exclusive rights to oral lasofoxifene outside Asia; $34.9M equity issued to Sermonix.
- Milestone payments to Sermonix up to $100M; royalties from sub-single to low-single digit percentages.
- Ligand agreement imposes separate milestones up to $21M and mid-single to low-double digit royalties.
- Commodore and TCGX each get board designee if holding ≥5%; Company to seek resignation of two current directors.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1620463/000119312525323692/0001193125-25-323692-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1620463/000119312525323692/atha-20251218.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-323692

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer