---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-318436"
form_type: "8-K"
ticker: "JBIO"
cik: "0001798749"
company_name: "Jade Biosciences, Inc."
filed_at: "2025-12-15T23:59:59+00:00"
generated_at: "2026-05-16T13:14:43.634500+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Jade Biosciences raises $45M in private placement with BB Biotech at $14/share

## Summary
- Private placement of 3,214,286 shares at $14.00 per share for gross proceeds of ~$45M.
- Purchaser is BB Biotech; closing expected on or about December 16, 2025.
- Net proceeds to fund R&D, general corporate expenses, and working capital.
- Registration rights agreement filed; resale registration statement required within 45 days post-closing.

## SEC filing metadata
- accession: 0001193125-25-318436
- form_type: 8-K
- ticker: JBIO
- cik: 0001798749
- company_name: Jade Biosciences, Inc.
- filed_at: 2025-12-15T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 3.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1798749/000119312525318436/0001193125-25-318436-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1798749/000119312525318436/d90753d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-318436
- JSON: https://secwatch.observer/filing/0001193125-25-318436.json
- Plain text: https://secwatch.observer/filing/0001193125-25-318436.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.