---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-117387"
form_type: "8-K"
ticker: "ARMP"
cik: "0000921114"
company_name: "Armata Pharmaceuticals, Inc."
filed_at: "2025-12-01T23:59:59+00:00"
generated_at: "2026-05-16T16:00:29.322247+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Armata enters ATM offering agreement for up to $100M of common stock

## Summary
- Entered Capital on Demand Sales Agreement with JonesTrading for at-the-market offering of common stock up to $100M.
- JonesTrading will earn commission of up to 3.0% of gross proceeds; sales may be made on NYSE American.
- Company not obligated to sell; Jones not obligated to buy; program entirely at Company's discretion.
- Offered under existing S-3 registration statement (File No. 333-289585) and prospectus supplement dated Dec 1, 2025.
- Agreement contains customary representations, warranties, and indemnification; either party may terminate on three days' notice.

## SEC filing metadata
- accession: 0001104659-25-117387
- form_type: 8-K
- ticker: ARMP
- cik: 0000921114
- company_name: Armata Pharmaceuticals, Inc.
- filed_at: 2025-12-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/921114/000110465925117387/0001104659-25-117387-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/921114/000110465925117387/tm2532031d2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-117387
- JSON: https://secwatch.observer/filing/0001104659-25-117387.json
- Plain text: https://secwatch.observer/filing/0001104659-25-117387.txt

## Key facts
- Material Agreements
  Armata Pharmaceuticals, Inc. entered into Capital on DemandTM Sales Agreement with JonesTrading Institutional Services LLC valued at up to $100,000,000 (effective 2025-12-01).
  - Action: entry
  - Agreement: atm program
  - Counterparty: JonesTrading Institutional Services LLC
  - Value: up to $100,000,000
  - Effective: 2025-12-01
  source text: On December 1, 2025, Armata Pharmaceuticals, Inc. (the “Company”) entered into a Capital on DemandTM Sales Agreement (the “Sales Agreement”) with JonesTrading Institutional Services LLC (“Jones”) with respect to an at the market offering program under which the Company may offer and sell, from time to time at its sole discretion, shares of its common stock, par value $0.01 per share (the “Common Stock”), having an aggregate offering price of up to $100,000,000 (the “Placement Shares”) subject to certain conditions, through Jones as sales agent.
  evidence_url: https://www.sec.gov/Archives/edgar/data/921114/000110465925117387/0001104659-25-117387-index.htm

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