---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-25-032411"
form_type: "8-K"
ticker: "MPWR"
cik: "0001280452"
company_name: "MONOLITHIC POWER SYSTEMS INC"
filed_at: "2025-10-30T23:59:59+00:00"
generated_at: "2026-05-17T01:15:25.146191+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# MPS Q3 revenue $737.2M (+18.9% YoY); Non-GAAP EPS $4.73 beats $4.06 YoY

## Summary
- Revenue $737.2M, record quarter, up 10.9% QoQ and 18.9% YoY; Enterprise Data rev $191.5M (+33% QoQ).
- GAAP diluted EPS $3.71 vs $2.95 YoY; Non-GAAP diluted EPS $4.73 vs $4.06 YoY.
- All end markets grew YoY; Automotive up 36.1%, Storage & Computing up 29.6%.
- Q4 guidance: revenue $730-750M, GAAP gross margin 54.9-55.5%, non-GAAP tax rate 15%.
- Design wins: new automotive Tier 1 supplier for ADAS, first full BMS solution on robotics.

## SEC filing metadata
- accession: 0001437749-25-032411
- form_type: 8-K
- ticker: MPWR
- cik: 0001280452
- company_name: MONOLITHIC POWER SYSTEMS INC
- filed_at: 2025-10-30T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1280452/000143774925032411/0001437749-25-032411-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1280452/000143774925032411/mpwr20250819_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-25-032411
- JSON: https://secwatch.observer/filing/0001437749-25-032411.json
- Plain text: https://secwatch.observer/filing/0001437749-25-032411.txt

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