---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-015629"
form_type: "8-K"
ticker: "ULBI"
cik: "0000875657"
company_name: "ULTRALIFE CORP"
filed_at: "2025-05-09T23:59:59+00:00"
generated_at: "2026-05-22T02:43:51.464001+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Ultralife Q1 revenue $50.7M (+21% YoY); GAAP EPS $0.11 vs $0.18

## Summary
- Revenue $50.7M, up 21% YoY; Battery & Energy Products +32.4% to $46.3M (incl. Electrochem, organic +10.6%).
- GAAP EPS $0.11 vs $0.18 YoY; adjusted EPS $0.13 vs $0.21; operating income $3.4M vs $4.1M.
- Gross margin 25.1% (vs 27.4% YoY) on product mix; Communications Systems sales fell 36.2% to $4.4M.
- Backlog $95.0M vs $102.2M at Q4 2024; company cites strong replenishment and tariff mitigation plan.

## SEC filing metadata
- accession: 0001437749-25-015629
- form_type: 8-K
- ticker: ULBI
- cik: 0000875657
- company_name: ULTRALIFE CORP
- filed_at: 2025-05-09T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- 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/875657/000143774925015629/0001437749-25-015629-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/875657/000143774925015629/ulbi20250508_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-015629
- JSON: https://secwatch.observer/filing/0001437749-25-015629.json
- Plain text: https://secwatch.observer/filing/0001437749-25-015629.txt

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