---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-24-003353"
form_type: "8-K"
ticker: "MPWR"
cik: "0001280452"
company_name: "MONOLITHIC POWER SYSTEMS INC"
filed_at: "2024-02-07T23:59:59+00:00"
generated_at: "2026-06-06T06:44:16.265925+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Monolithic Power Systems Q4 rev $454M, GAAP EPS $1.98; dividend raised 25% to $1.25/quarter

## Summary
- Q4 revenue $454.0M, down 1.3% YoY; GAAP net income $96.9M ($1.98 diluted EPS) vs $119.1M ($2.45) a year ago.
- Non-GAAP net income $140.9M ($2.88 diluted EPS) vs $154.0M ($3.17) in Q4 2022.
- FY2023 revenue $1.821B (+1.5% YoY); GAAP net income $427.4M ($8.76 diluted EPS) vs $437.7M ($9.05).
- Quarterly dividend increased 25% to $1.25/share from $1.00; payable Apr 15, 2024 to holders of record Mar 29.
- Q1 2024 guidance: revenue $437-$457M, GAAP gross margin 55.1-55.7%, non-GAAP op expenses $101.8-$103.8M.

## SEC filing metadata
- accession: 0001437749-24-003353
- form_type: 8-K
- ticker: MPWR
- cik: 0001280452
- company_name: MONOLITHIC POWER SYSTEMS INC
- filed_at: 2024-02-07T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1280452/000143774924003353/0001437749-24-003353-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1280452/000143774924003353/mpwr20231113_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-24-003353
- JSON: https://secwatch.observer/filing/0001437749-24-003353.json
- Plain text: https://secwatch.observer/filing/0001437749-24-003353.txt

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