secwatch.observer — SEC 8-K summary
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Issuer:     LeonaBio, Inc. (LONA)
CIK:        0001620463
Form:       8-K/A
Filed at:   2025-12-18T23:59:59+00:00
Accession:  0001193125-25-323786
Event type: m_and_a
Sentiment:  positive
Materiality: 0.85
Item codes: 1.01, 3.02, 7.01, 8.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Athira Pharma licenses lasofoxifene rights, raises $90M in PIPE financing
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- Licensed exclusive rights to oral lasofoxifene from Sermonix and Ligand for $34.9M in equity, plus monthly payments and up to $100M milestones.
- PIPE raises ~$90M gross from Commodore, TCGX, Perceptive and others at $6.35/share with warrants exercisable after ELAINE-3 milestones.
- Both PIPE and Sermonix closings expected December 23, 2025; proceeds for working capital, excluding debt repayment or stock redemption.
- Commodore and TCGX each get board designation rights if holding 5%+; company to seek resignation of two current directors within 6 months.
- Joseph Edelman (Perceptive) is a board member; Perceptive affiliates hold ~29% of Sermonix capital stock.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1620463/000119312525323786/0001193125-25-323786-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1620463/000119312525323786/atha-20251218.htm
  HTML page:      https://secwatch.observer/filing/0001193125-25-323786

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