---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-024185"
form_type: "8-K"
ticker: "MPWR"
cik: "0001280452"
company_name: "MONOLITHIC POWER SYSTEMS INC"
filed_at: "2025-07-31T23:59:59+00:00"
generated_at: "2026-05-17T22:11:01.656388+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# MPS Q2 revenue $664.6M (+31% YoY); non-GAAP EPS $4.21 (+32.8% YoY); Q3 outlook $710-730M

## Summary
- GAAP net income $133.7M ($2.78 diluted EPS) vs $100.4M ($2.05) YoY.
- Non-GAAP net income $202.2M ($4.21 diluted EPS) vs $155.1M ($3.17) YoY.
- GAAP gross margin 55.1%; non-GAAP gross margin 55.5%.
- Storage & Computing revenue $195.3M (+70% YoY); Automotive $145.1M (+66.4% YoY); Enterprise Data fell 23.1% YoY.
- Q3 2025 revenue guidance $710M-$730M; non-GAAP gross margin 55.2%-55.8%.

## SEC filing metadata
- accession: 0001437749-25-024185
- form_type: 8-K
- ticker: MPWR
- cik: 0001280452
- company_name: MONOLITHIC POWER SYSTEMS INC
- filed_at: 2025-07-31T23:59:59+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/1280452/000143774925024185/0001437749-25-024185-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1280452/000143774925024185/mpwr20250509_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-024185
- JSON: https://secwatch.observer/filing/0001437749-25-024185.json
- Plain text: https://secwatch.observer/filing/0001437749-25-024185.txt

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