secwatch.observer — SEC 8-K summary
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Issuer:     MONOLITHIC POWER SYSTEMS INC (MPWR)
CIK:        0001280452
Form:       8-K
Filed at:   2026-10-29T20:01:11+00:00
Accession:  0001628280-26-068202
Event type: earnings
Sentiment:  positive
Materiality: 0.88
Item codes: 2.02, 5.02, 9.01
LLM model:  deepseek-v4.1-flash:cloud@v2

MPS Q3 revenue tops $1.2B for first time, up 63% YoY; GAAP EPS $5.51, non-GAAP $8.19
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- Revenue $1,202.4M, up 22.6% QoQ and 63.1% YoY, first quarter above $1B; GAAP diluted EPS $5.51, non-GAAP $8.19.
- Enterprise Data revenue $506.7M rose 33.2% QoQ and 164.6% YoY, 42.1% of total; Communications $187.4M rose 42.5% QoQ and 134.7% YoY.
- Q4 2026 outlook: revenue $1.315B-$1.385B, non-GAAP gross margin 55.5%-56.1%, GAAP opex $334M-$342M, non-GAAP tax rate 15%.
- Board named Tony Balow VP/CFO and Robert Dean VP/CAO effective Oct 27, 2026; Balow was VP Finance, Dean had been interim CFO since Feb 2026.
- Q3 stock repurchases $453.4M vs $4.0M in Q2; board added $500M authorization, bringing total current authorization to $1B.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1280452/000162828026068202/0001628280-26-068202-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1280452/000162828026068202/mpwr-20261027.htm
  HTML page:      https://secwatch.observer/filing/0001628280-26-068202

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