---
schema_version: "secwatch.filing_event.v1"
accession: "0001326190-26-000006"
form_type: "8-K"
ticker: "ALT"
cik: "0001326190"
company_name: "Altimmune, Inc."
filed_at: "2026-01-28T23:59:59+00:00"
generated_at: "2026-05-16T06:55:45.392318+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Altimmune raises ~$75M in registered direct offering of common stock and pre-funded warrants

## Summary
- Issued 12.4M shares and pre-funded warrants for 4.6M shares at $4.40/share; gross proceeds ~$75M.
- Closing expected Jan 29, 2026; Titan Partners acted as sole placement agent.
- Pre-funded warrants exercisable at $0.001, no expiration, 9.99% beneficial ownership limit.
- Directors and officers subject to 30-day lock-up agreements with customary exceptions.

## SEC filing metadata
- accession: 0001326190-26-000006
- form_type: 8-K
- ticker: ALT
- cik: 0001326190
- company_name: Altimmune, Inc.
- filed_at: 2026-01-28T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/0001326190-26-000006-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/alt-20260127x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001326190-26-000006
- JSON: https://secwatch.observer/filing/0001326190-26-000006.json
- Plain text: https://secwatch.observer/filing/0001326190-26-000006.txt

## Key facts
- Material Agreements
  Altimmune, Inc. entered into Placement Agency Agreement with Titan Partners Group LLC, a division of American Capital Partners, LLC (effective 2026-01-27).
  - Action: entry
  - Agreement: underwriting
  - Counterparty: Titan Partners Group LLC, a division of American Capital Partners, LLC
  - Effective: 2026-01-27
  source text: The Company also entered into a Placement Agency Agreement with Titan Partners Group LLC, a division of American Capital Partners, LLC (“Titan Partners”) (the “Placement Agency Agreement,” and together with the Securities Purchase Agreement, the “Agreements”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/0001326190-26-000006-index.htm
- Material Agreements
  Altimmune, Inc. entered into Securities Purchase Agreement with a new fundamental institutional investor valued at approximately $75 million (effective 2026-01-27).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: a new fundamental institutional investor
  - Value: approximately $75 million
  - Effective: 2026-01-27
  source text: On January 27, 2026, Altimmune, Inc. (the “Company”) entered into a Securities Purchase Agreement with a new fundamental institutional investor (the “Securities Purchase Agreement”) relating to the issuance of 12,397,920 shares of the Company’s common stock, par value of $0.0001 per share (the “Common Stock”) and pre-funded warrants (the “Pre-Funded Warrants”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1326190/000132619026000006/0001326190-26-000006-index.htm

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