---
schema_version: "secwatch.filing_event.v1"
accession: "0000909832-25-000031"
form_type: "8-K"
ticker: "COST"
cik: "0000909832"
company_name: "COSTCO WHOLESALE CORP /NEW"
filed_at: "2025-05-29T23:59:59+00:00"
generated_at: "2026-05-20T07:17:56.471331+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Costco Q3 EPS $4.28, revenue $61.96B, up 8% YoY

## Summary
- Net income $1.90B ($4.28 diluted EPS) vs $1.68B ($3.78) last year, up 13.2%.
- Total comparable sales +5.7% (+8.0% adj. for gas/FX); e-commerce +14.8%.
- Membership income grew 10.4%; renewals 90.2%, paid members 79.6M (+6.8%).
- Gross margin 11.25% (+41 bps); SG&A 9.16% (-20 bps) vs prior year.
- Opened 6 net new warehouses in Q3; total 905 locations.

## SEC filing metadata
- accession: 0000909832-25-000031
- form_type: 8-K
- ticker: COST
- cik: 0000909832
- company_name: COSTCO WHOLESALE CORP /NEW
- filed_at: 2025-05-29T23:59:59+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/909832/000090983225000031/0000909832-25-000031-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/909832/000090983225000031/cost-20250529.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000909832-25-000031
- JSON: https://secwatch.observer/filing/0000909832-25-000031.json
- Plain text: https://secwatch.observer/filing/0000909832-25-000031.txt

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