---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-26-014182"
form_type: "8-K"
ticker: "MPWR"
cik: "0001280452"
company_name: "MONOLITHIC POWER SYSTEMS INC"
filed_at: "2026-04-30T23:59:59+00:00"
generated_at: "2026-05-15T00:35:15.747646+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# MPS reports record Q1 revenue $804.2M, up 26.1% YoY; EPS $3.92 GAAP, $5.10 non-GAAP

## Summary
- Revenue of $804.2M (record), up 7.1% QoQ and 26.1% YoY; GAAP EPS $3.92, non-GAAP EPS $5.10.
- Enterprise Data segment revenue $262.8M (+97.7% YoY), driven by AI and server power solutions.
- Communications revenue $111.5M (+33.1% QoQ, +55.5% YoY), driven by optical modules and switches.
- Q2 2026 revenue guidance $890M-$910M; GAAP gross margin 55.1%-55.7%.
- Operating cash flow $250.3M in Q1 2026, up from $104.9M in Q4 2025.

## SEC filing metadata
- accession: 0001437749-26-014182
- form_type: 8-K
- ticker: MPWR
- cik: 0001280452
- company_name: MONOLITHIC POWER SYSTEMS INC
- filed_at: 2026-04-30T23:59:59+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/1280452/000143774926014182/0001437749-26-014182-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1280452/000143774926014182/mpwr20260305_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-26-014182
- JSON: https://secwatch.observer/filing/0001437749-26-014182.json
- Plain text: https://secwatch.observer/filing/0001437749-26-014182.txt

## Key facts
- Earnings Releases
  MONOLITHIC POWER SYSTEMS INC reported the quarter ended March 31, 2026 results: revenue $804.2 million, net income $193.2 million, EPS $3.92.
  - Period: the quarter ended March 31, 2026
  - Revenue: $804.2 million
  - Net income: $193.2 million
  - EPS: $3.92
  - Result: reported results
  source text: (11.2 %) 14.2 % 6.0 7.3 Total $804.2 $751.2 $637.6 7.1 % 26.1 % 100 % 100 % 2 Ongoing Business Conditions In the first quarter of 2026 , MPS achieved record quarterly revenue of $804.2 million, 7.1% higher than the fourth quarter of 2025 and 26.1% higher than revenue in the first quarter of 2025 . Our quarterly performance was the result of our continued innovation,
  evidence_url: https://www.sec.gov/Archives/edgar/data/1280452/000143774926014182/0001437749-26-014182-index.htm

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