Monolithic Power Systems shares owned by American Trust
Quarter-by-quarter ownership of Monolithic Power Systems (MPWR) shares owned by American Trust
from 13F filings
Historical chart of American Trust investment in Monolithic Power Systems
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Quarterly reported holdings in Monolithic Power Systems by American Trust
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $890k | 967 | 920.64 |
| 2025-06-30 | $279k | 382 | 731.38 |
| 2024-12-31 | $255k | 431 | 591.70 |
| 2024-09-30 | $403k | 436 | 924.50 |
| 2024-06-30 | $356k | 433 | 821.68 |
| 2024-03-31 | $335k | 495 | 677.42 |
| 2023-12-31 | $387k | 613 | 630.78 |
| 2023-09-30 | $314k | 679 | 462.00 |
| 2023-06-30 | $454k | 841 | 540.23 |
| 2023-03-31 | $379k | 758 | 500.54 |
| 2022-12-31 | $276k | 781 | 353.61 |
| 2022-09-30 | $217k | 596 | 364.09 |
| 2022-06-30 | $235k | 612 | 383.99 |