Renaissance Technologies (RenTech)'s MPWR Position Overview
Renaissance Technologies (RenTech) (via Renaissance Technologies LLC) currently holds 63,066 shares of Monolithic Power Systems, Inc. (MPWR) worth $87.18 M, representing 0.12% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 46 quarters.
Based on 13F filings since 2013, Renaissance Technologies (RenTech) has maintained a long-term strategic position in MPWR, representing a significant commitment to this investment thesis. Largest addition occurred in Q3 2022, adding 327,755 shares. Largest reduction occurred in Q2 2016, reducing 344,400 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies (RenTech)'s Monolithic Power Systems (MPWR) Holding Value Over Time
Track share changes against reported price movement
Quarterly Monolithic Power Systems (MPWR) Trades by Renaissance Technologies (RenTech)
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2026 | +63,066 | New Buy | 63,066 | $1382.36 |
| Q4 2025 | -8,086 | Sold Out | 0 | $0.00 |
| Q3 2025 | +8,086 | New Buy | 8,086 | $920.64 |
| Q3 2024 | -686 | Sold Out | 0 | $0.00 |
| Q2 2024 | -19,400 | Reduce 96.58% | 686 | $821.68 |
| Q1 2024 | +20,086 | New Buy | 20,086 | $677.44 |
| Q4 2023 | -188,386 | Sold Out | 0 | $0.00 |
| Q3 2023 | +74,400 | Add 65.27% | 188,386 | $462.00 |
| Q2 2023 | -80,400 | Reduce 41.36% | 113,986 | $0.54 |
| Q1 2023 | +102,200 | Add 110.86% | 194,386 | $0.50 |
| Q4 2022 | -331,155 | Reduce 78.22% | 92,186 | $0.35 |
| Q3 2022 | +327,755 | Add 342.89% | 423,341 | $363.40 |
| Q2 2022 | -57,940 | Reduce 37.74% | 95,586 | $384.04 |
| Q1 2022 | -27,660 | Reduce 15.27% | 153,526 | $485.68 |
| Q4 2021 | +100,879 | Add 125.62% | 181,186 | $493.33 |
| Q3 2021 | -22,479 | Reduce 21.87% | 80,307 | $484.68 |
| Q2 2021 | +102,786 | New Buy | 102,786 | $373.45 |
| Q4 2020 | -164,286 | Sold Out | 0 | $0.00 |
| Q3 2020 | +47,500 | Add 40.67% | 164,286 | $279.61 |
| Q2 2020 | +90,300 | Add 340.93% | 116,786 | $237.00 |
| Q1 2020 | +26,486 | New Buy | 26,486 | $167.45 |
| Q4 2019 | -3,586 | Sold Out | 0 | $0.00 |
| Q3 2019 | -65,500 | Reduce 94.81% | 3,586 | $155.61 |
| Q2 2019 | +69,086 | New Buy | 69,086 | $135.77 |
| Q1 2019 | -17,642 | Sold Out | 0 | $0.00 |
| Q4 2018 | +17,642 | New Buy | 17,642 | $116.26 |
| Q2 2018 | -3,586 | Sold Out | 0 | $0.00 |
| Q1 2018 | +3,586 | New Buy | 3,586 | $115.73 |
| Q3 2017 | -4,000 | Sold Out | 0 | $0.00 |
| Q2 2017 | -300 | Reduce 6.98% | 4,000 | $96.50 |
| Q1 2017 | -52,800 | Reduce 92.47% | 4,300 | $92.09 |
| Q4 2016 | -114,200 | Reduce 66.67% | 57,100 | $81.93 |
| Q3 2016 | -177,586 | Reduce 50.90% | 171,300 | $80.50 |
| Q2 2016 | -344,400 | Reduce 49.68% | 348,886 | $68.32 |
| Q1 2016 | +252,200 | Add 57.18% | 693,286 | $63.64 |
| Q4 2015 | -8,314 | Reduce 1.85% | 441,086 | $63.71 |
| Q3 2015 | -3,100 | Reduce 0.69% | 449,400 | $51.20 |
| Q2 2015 | +2,514 | Add 0.56% | 452,500 | $50.71 |
| Q1 2015 | +16,900 | Add 3.90% | 449,986 | $52.65 |
| Q4 2014 | +30,100 | Add 7.47% | 433,086 | $49.74 |
| Q3 2014 | -75,300 | Reduce 15.74% | 402,986 | $44.05 |
| Q2 2014 | -43,200 | Reduce 8.28% | 478,286 | $42.35 |
| Q1 2014 | +296,600 | Add 131.89% | 521,486 | $38.77 |
| Q4 2013 | +200,586 | Add 825.46% | 224,886 | $34.66 |
| Q3 2013 | -3,700 | Reduce 13.21% | 24,300 | $30.29 |
| Q2 2013 | +28,000 | Add 0.00% | 28,000 | $24.11 |
Renaissance Technologies (RenTech)'s Monolithic Power Systems Investment FAQs
Renaissance Technologies (RenTech) first purchased Monolithic Power Systems, Inc. (MPWR) in Q2 2013, acquiring 28,000 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies (RenTech) has held Monolithic Power Systems, Inc. (MPWR) for 46 quarters since Q2 2013.
Renaissance Technologies (RenTech)'s largest addition to Monolithic Power Systems, Inc. (MPWR) was in Q3 2022, adding 423,341 shares worth $153.84 M.
According to the latest 13F filing for Q2 2026, Renaissance Technologies (RenTech)'s firm, Renaissance Technologies LLC, owns 63,066 shares of Monolithic Power Systems, Inc. (MPWR), valued at approximately $87.18 M.
As of the Q2 2026 filing, Monolithic Power Systems, Inc. (MPWR) represents approximately 0.12% of Renaissance Technologies (RenTech)'s publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies (RenTech)'s peak holding in Monolithic Power Systems, Inc. (MPWR) was 693,286 shares, as reported at the end of Q1 2016.