---
schema_version: "secwatch.filing_event.v1"
accession: "0000815556-25-000048"
form_type: "8-K"
ticker: "FAST"
cik: "0000815556"
company_name: "FASTENAL CO"
filed_at: "2025-01-17T23:59:59+00:00"
generated_at: "2026-05-27T23:36:27.070203+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Fastenal Q4 net income down 1.6% to $262.1M; EPS flat at $0.46; operating margin contracts

## Summary
- Q4 net sales $1,824.5M (+3.7% YoY); daily sales grew 2.1% on one extra selling day.
- Q4 operating margin fell to 18.9% from 20.1% on SG&A deleverage and unfavorable mix.
- Full year 2024 EPS $2.00 vs $2.02; net income down 0.4% to $1,150.6M.
- Onsite signings 358 in 2024, below 375-400 goal; active sites up 11.5% to 2,031.
- 2025 capex guided to $265-285M; FMI device signings target 28,000-30,000 MEUs.

## SEC filing metadata
- accession: 0000815556-25-000048
- form_type: 8-K
- ticker: FAST
- cik: 0000815556
- company_name: FASTENAL CO
- filed_at: 2025-01-17T23:59:59+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/815556/000081555625000048/0000815556-25-000048-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/815556/000081555625000048/fast-20250117.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000815556-25-000048
- JSON: https://secwatch.observer/filing/0000815556-25-000048.json
- Plain text: https://secwatch.observer/filing/0000815556-25-000048.txt

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