---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-015749"
form_type: "8-K"
ticker: "ULBI"
cik: "0000875657"
company_name: "ULTRALIFE CORP"
filed_at: "2026-05-08T23:59:59+00:00"
generated_at: "2026-05-14T21:17:21.505550+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Ultralife Q1 revenue $47.4M, GAAP EPS -$0.03; backlog record $115.1M

## Summary
- Revenue $47.4M, down 6.5% YoY; Battery & Energy sales -4.7%, Communications Systems -25.7%.
- GAAP net loss ($0.5M) or ($0.03) per share vs $1.9M/$0.11 prior year; adjusted EBITDA $3.2M vs $5.4M.
- Gross margin 21.3% (down from 25.1%); operating loss ($0.2M) including $1.7M one-time costs from power outage, inventory integration, and weather.
- Backlog record $115.1M, highest ever, up from $110.2M at Q4 2025 and $95.0M at Q1 2025.
- Management focusing on improving manufacturing efficiencies and driving orders to restore profitability and generate cash flow.

## SEC filing metadata
- accession: 0001437749-26-015749
- form_type: 8-K
- ticker: ULBI
- cik: 0000875657
- company_name: ULTRALIFE CORP
- filed_at: 2026-05-08T23:59:59+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/875657/000143774926015749/0001437749-26-015749-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/875657/000143774926015749/ulbi20260507_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-015749
- JSON: https://secwatch.observer/filing/0001437749-26-015749.json
- Plain text: https://secwatch.observer/filing/0001437749-26-015749.txt

## Source-grounded claims
- claim_id: ae46b9a82f93d339bf93f8aa5437ac3789903564
  claim: ULTRALIFE CORP reported the first quarter ended March 31, 2026 results: revenue $47.4 million, net income ($0.5) million, EPS ($0.03) per basic and diluted share.
  evidence_excerpt: First Quarter 2026 Financial Results Revenue was $47.4 million, a decrease of $3.3 million, or 6.5%, as compared to revenue of $50.7 million for the first quarter of 2025. Battery & Energy Products sales decreased 4.7% to $44.2 million compared to $46.3 million last year. The year-over-year decrease reflects a 5.5% decline in commercial sales due to lower oil & gas and industrial sales offsetting an increase in medical battery sales, and a 2.7% decline in government/defense sales due to the shipment of a very large order for an allied country last year. Communications Systems sales decreased by 25.7% to $3.3 million compared to $4.4 million for the same period last year, primarily attributable to the timing of expected orders. Our total backlog exiting the first quarter was $115.1 million, the highest level in the Company’s history, compared to $110.2 million exiting the fourth quarter of 2025 and $95.0 million exiting the first quarter of 2025. Gross profit was $10.1 million, or 21.3%
  evidence_url: https://www.sec.gov/Archives/edgar/data/875657/000143774926015749/0001437749-26-015749-index.htm

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