---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-21-024453"
form_type: "8-K"
ticker: "ULBI"
cik: "0000875657"
company_name: "ULTRALIFE CORP"
filed_at: "2021-10-28T23:59:59+00:00"
generated_at: "2026-06-28T17:08:36.931441+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Ultralife reports Q3 operating loss of $0.8M; revenue down 11% to $21.8M

## Summary
- Net loss $0.6M ($0.04/diluted share); adjusted EPS unfavorably impacted by $0.08 from supply chain delays.
- Revenue $21.8M, down 10.7% YoY; commercial sales up 5%, government/defense sales down 40%.
- Delayed shipments from supply chain bottlenecks adversely impacted revenue by ~$4.1M in Q3.
- Backlog increased ~22% sequentially; cash $15.9M, up 49% from year-end 2020; debt reduced to $0.3M.
- Battery & Energy revenue down 8% to $20.0M; Communications Systems down 31% to $1.8M.

## SEC filing metadata
- accession: 0001437749-21-024453
- form_type: 8-K
- ticker: ULBI
- cik: 0000875657
- company_name: ULTRALIFE CORP
- filed_at: 2021-10-28T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/875657/000143774921024453/0001437749-21-024453-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/875657/000143774921024453/ulbi20211027_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-21-024453
- JSON: https://secwatch.observer/filing/0001437749-21-024453.json
- Plain text: https://secwatch.observer/filing/0001437749-21-024453.txt

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