---
schema_version: "secwatch.filing_event.v1"
accession: "0000352825-25-000058"
form_type: "8-K"
ticker: "FSTR"
cik: "0000352825"
company_name: "FOSTER L B CO"
filed_at: "2025-05-06T23:59:59+00:00"
generated_at: "2026-05-22T14:58:26.439968+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.72
calibrated_materiality_score: 0.72
confidence: "high"
source: SEC EDGAR
---

# L.B. Foster Q1 net loss $2.1M; sales down 21.3%; maintains 2025 guidance

## Summary
- Net sales $97.8M vs $124.3M in Q1 2024; net loss of $2.1M vs income of $4.4M.
- Adj EBITDA $1.8M, down 69.3% from $5.9M; Rail segment sales fell 34.6%.
- Infrastructure sales up 5.0% driven by 33.7% Precast Concrete growth.
- Backlog rose 27.6% to $237.2M; new orders up 12.6% to $149.1M.
- Maintains FY2025 guidance: sales $540-580M, adj EBITDA $42-48M; bought 168,911 shares.

## SEC filing metadata
- accession: 0000352825-25-000058
- form_type: 8-K
- ticker: FSTR
- cik: 0000352825
- company_name: FOSTER L B CO
- filed_at: 2025-05-06T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.72
- calibrated_materiality_score: 0.72
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/352825/000035282525000058/0000352825-25-000058-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/352825/000035282525000058/fstr-20250506.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000352825-25-000058
- JSON: https://secwatch.observer/filing/0000352825-25-000058.json
- Plain text: https://secwatch.observer/filing/0000352825-25-000058.txt

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