---
schema_version: "secwatch.filing_event.v1"
accession: "0000909832-25-000164"
form_type: "8-K"
ticker: "COST"
cik: "0000909832"
company_name: "COSTCO WHOLESALE CORP /NEW"
filed_at: "2025-12-11T23:59:59+00:00"
generated_at: "2026-05-16T13:36:33.899606+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Costco Q1 FY2026 net sales +8.2% to $65.98B; EPS $4.50 vs $4.04 YoY

## Summary
- Net income $2.001B ($4.50 diluted EPS) vs $1.798B ($4.04) a year ago; includes $0.16 tax benefit.
- Total company comparable sales +6.4% (adjusted); digitally-enabled comps +20.5%.
- Membership fee income +14.0%; paid households 81.4M (+5.2%); renewal rate 89.7%.
- Operates 923 warehouses; opened 7 new locations in Q1, including first in Mulhouse, France.
- Diluted EPS growth ex-tax benefit was +13.6%.

## SEC filing metadata
- accession: 0000909832-25-000164
- form_type: 8-K
- ticker: COST
- cik: 0000909832
- company_name: COSTCO WHOLESALE CORP /NEW
- filed_at: 2025-12-11T23:59:59+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/909832/000090983225000164/0000909832-25-000164-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/909832/000090983225000164/cost-20251211.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000909832-25-000164
- JSON: https://secwatch.observer/filing/0000909832-25-000164.json
- Plain text: https://secwatch.observer/filing/0000909832-25-000164.txt

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