---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-157454"
form_type: "8-K"
ticker: "ANNX"
cik: "0001528115"
company_name: "Annexon, Inc."
filed_at: "2024-06-07T23:59:59+00:00"
generated_at: "2026-06-01T05:33:06.067659+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Annexon prices $125M public offering of common stock and pre-funded warrants

## Summary
- Priced 13,001,120 shares at $6.25/sh and 7M pre-funded warrants at $6.249/sh; gross proceeds $125M.
- Net proceeds expected ~$116.9M after underwriting discounts and expenses; offering closed June 7, 2024.
- Underwriters granted 30-day option to purchase up to 3,000,168 additional shares.
- J.P. Morgan, Jefferies, TD Cowen, BofA Securities and Wells Fargo Securities served as joint book-running managers.
- Funds will support development of classical complement-mediated neuroinflammatory therapies.

## SEC filing metadata
- accession: 0001193125-24-157454
- form_type: 8-K
- ticker: ANNX
- cik: 0001528115
- company_name: Annexon, Inc.
- filed_at: 2024-06-07T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1528115/000119312524157454/0001193125-24-157454-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1528115/000119312524157454/d841004d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-157454
- JSON: https://secwatch.observer/filing/0001193125-24-157454.json
- Plain text: https://secwatch.observer/filing/0001193125-24-157454.txt

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