---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-22-009948"
form_type: "8-K"
ticker: "MPWR"
cik: "0001280452"
company_name: "MONOLITHIC POWER SYSTEMS INC"
filed_at: "2022-04-28T23:59:59+00:00"
generated_at: "2026-06-26T03:12:03.511395+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Monolithic Power Systems adopts proxy access and updates bylaws

## Summary
- Proxy access permits stockholders owning 3%+ for 3+ years to nominate one director in company's proxy materials.
- Board also updated indemnification provisions and added disclosure requirements for contested director elections.
- Changes conform to Delaware General Corporation Law; obsolete provisions eliminated.
- Effective immediately upon Board approval on April 26, 2022.

## SEC filing metadata
- accession: 0001437749-22-009948
- form_type: 8-K
- ticker: MPWR
- cik: 0001280452
- company_name: MONOLITHIC POWER SYSTEMS INC
- filed_at: 2022-04-28T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1280452/000143774922009948/0001437749-22-009948-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1280452/000143774922009948/mpwr20220415_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-22-009948
- JSON: https://secwatch.observer/filing/0001437749-22-009948.json
- Plain text: https://secwatch.observer/filing/0001437749-22-009948.txt

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