Monolithic Power Systems shares owned by Parnassus Investments
Quarter-by-quarter ownership of Monolithic Power Systems (MPWR) shares owned by Parnassus Investments
from 13F filings
Historical chart of Parnassus Investments investment in Monolithic Power Systems
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Quarterly reported holdings in Monolithic Power Systems by Parnassus Investments
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $25M | 27k | 920.64 |
| 2025-06-30 | $20M | 28k | 731.38 |
| 2025-03-31 | $17M | 29k | 579.98 |
| 2024-12-31 | $17M | 29k | 591.70 |
| 2024-09-30 | $21M | 23k | 924.50 |
| 2024-06-30 | $25M | 31k | 821.68 |
| 2024-03-31 | $21M | 31k | 677.42 |
| 2023-12-31 | $19M | 31k | 630.78 |
| 2023-09-30 | $13M | 28k | 462.00 |
| 2023-06-30 | $15M | 28k | 540.23 |
| 2023-03-31 | $14M | 28k | 500.54 |
| 2022-12-31 | $14M | 40k | 353.61 |
| 2022-09-30 | $5.9M | 16k | 363.39 |
| 2022-06-30 | $19M | 50k | 384.05 |
| 2022-03-31 | $24M | 50k | 485.68 |
| 2021-12-31 | $25M | 50k | 493.33 |
| 2021-09-30 | $24M | 50k | 484.68 |
| 2021-06-30 | $19M | 50k | 373.44 |
| 2021-03-31 | $18M | 50k | 353.21 |
| 2020-12-31 | $18M | 50k | 366.22 |
| 2020-09-30 | $14M | 50k | 279.61 |
| 2020-06-30 | $12M | 51k | 237.00 |
| 2019-09-30 | $18M | 113k | 155.63 |
| 2019-06-30 | $15M | 113k | 135.78 |