Who owns Monolithic Power Systems Inc (MPWR)?
513 US mutual funds and ETFs from 221 fund families reported a position in MPWR for the quarter ending 2026-06-30. Against their own report a quarter earlier, 163 raised shares, 49 opened a new position, 219 cut and 56 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Vanguard Index Funds | 6 | 35.7% |
| Ishares Trust | 17 | 16.7% |
| Invesco Qqq Trust, Series 1 | 1 | 7.9% |
| Vaneck Etf Trust | 5 | 5.2% |
| Franklin Custodian Funds | 2 | 3.3% |
| Select Sector Spdr Trust | 1 | 2.6% |
Tracked managers holding MPWR
None of the managers Prior Moves tracks on 13F reports MPWR in its latest filing.
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about MPWR. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
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