---
schema_version: "secwatch.filing_event.v1"
accession: "0000352825-26-000026"
form_type: "8-K"
ticker: "FSTR"
cik: "0000352825"
company_name: "FOSTER L B CO"
filed_at: "2026-05-04T23:59:59+00:00"
generated_at: "2026-05-15T00:08:00.773865+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# L.B. Foster Q1 net sales $121.1M (+23.9%); net income $1.5M vs loss; reaffirms FY guidance

## Summary
- Net sales $121.1M, up 23.9% YoY; Rail segment sales up 38.4%, Infrastructure up 5.9%.
- Net income $1.5M versus $(2.1M) loss; EBITDA $5.2M, up 183% YoY.
- Gross margin improved 60 bps to 21.2%; SG&A as % of sales down 240 bps to 19.0%.
- Total debt $59.7M, down $22.8M YoY; leverage ratio improved to 1.2x from 2.5x.
- Reaffirms FY2026 guidance: sales $540-580M, Adj EBITDA $41-46M, FCF $15-25M.

## SEC filing metadata
- accession: 0000352825-26-000026
- form_type: 8-K
- ticker: FSTR
- cik: 0000352825
- company_name: FOSTER L B CO
- filed_at: 2026-05-04T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- 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/352825/000035282526000026/0000352825-26-000026-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/352825/000035282526000026/fstr-20260504.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000352825-26-000026
- JSON: https://secwatch.observer/filing/0000352825-26-000026.json
- Plain text: https://secwatch.observer/filing/0000352825-26-000026.txt

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