Monolithic Power Systems, Inc.
MPWR- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001280452
In the last 90 days, Monolithic Power Systems, Inc. insiders filed 0 open-market purchases and 8 sales; 1,250 institutions reported holding it in 13F filings for Q2 2026, worth $65.6B in total; superinvestors D1 Capital Partners and Maverick Capital hold it.
Superinvestors holding MPWR, Q2 2026
2 superinvestors report holding Monolithic Power Systems, Inc. on Form 13F, worth $118.5M in total. Weight is Monolithic Power Systems, Inc.'s share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| D1 Capital PartnersDan Sundheim | 0.3% | 85,103 | $117.6M | New |
| Maverick CapitalLee Ainslie | <0.1% | 593 | $819.7K | New |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of MPWR each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
2 superinvestors holding at quarter end
Q2 2025
0 superinvestors holding at quarter end
- Sold out
- Coatue Management
Q1 2025
1 superinvestor holding at quarter end
Q1 2024
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q4 2023
1 superinvestor holding at quarter end
Q1 2023
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q4 2022
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+270.3%)
Q3 2022
1 superinvestor holding at quarter end