---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-010359"
form_type: "8-K"
ticker: "ULBI"
cik: "0000875657"
company_name: "ULTRALIFE CORP"
filed_at: "2025-04-01T23:59:59+00:00"
generated_at: "2026-05-24T01:19:00.583333+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Ultralife Q4 GAAP EPS $0.01 vs $0.17 YoY; sales $43.9M; backlog $102.2M

## Summary
- Q4 sales $43.9M, down from $44.5M YoY; Battery & Energy +11.7%, Communications -55.1%.
- GAAP EPS $0.01 ($0.2M net income) vs $0.17 ($2.9M) in Q4 2023; adjusted EPS also $0.01.
- Operating income $1.5M including $1.1M one-time acquisition costs; adjusted EBITDA $3.9M.
- Full-year sales $164.5M (+3.7%); GAAP EPS $0.38 vs $0.44; adjusted EBITDA $16.5M.
- Backlog and high-confidence orders $102.2M at year-end 2024 vs $78.0M at Q3 2024.

## SEC filing metadata
- accession: 0001437749-25-010359
- form_type: 8-K
- ticker: ULBI
- cik: 0000875657
- company_name: ULTRALIFE CORP
- filed_at: 2025-04-01T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/875657/000143774925010359/0001437749-25-010359-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/875657/000143774925010359/ulbi20250331_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-010359
- JSON: https://secwatch.observer/filing/0001437749-25-010359.json
- Plain text: https://secwatch.observer/filing/0001437749-25-010359.txt

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