American Trust
- SEC CIK
- 0001905128
- Latest filing
- Aug 14, 2026
MPWR holding history
Monolithic Power Systems, Inc. in every 13F filed by American Trust, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
MPWR overviewAll 13F holders of MPWRFull Q2 2026 holdings
- Shares (Q2 2026)
- 644
- Value
- $890.2K
- % of portfolio
- 0.1%
- Quarters held
- 16
- Since Q2 2022
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 644 | $890.2K | 0.1% | −168−20.7% | Reduced | Holders |
| Q1 2026 | 812 | $887.8K | 0.1% | −130−13.8% | Reduced | Holders |
| Q4 2025 | 942 | $853.8K | 0.1% | −25−2.6% | Reduced | Holders |
| Q3 2025 | 967 | $890.3K | 0.1% | +585+153.1% | Added | Holders |
| Q2 2025 | 382 | $279.4K | <0.1% | +382 | New | Holders |
| Q1 2025 | 0 | $0 | 0.0% | −431−100.0% | Sold out | Holders |
| Q4 2024 | 431 | $255.0K | <0.1% | −5−1.1% | Reduced | Holders |
| Q3 2024 | 436 | $403.1K | <0.1% | +3+0.7% | Added | Holders |
| Q2 2024 | 433 | $355.8K | <0.1% | −62−12.5% | Reduced | Holders |
| Q1 2024 | 495 | $335.3K | <0.1% | −118−19.2% | Reduced | Holders |
| Q4 2023 | 613 | $386.7K | <0.1% | −66−9.7% | Reduced | Holders |
| Q3 2023 | 679 | $313.7K | <0.1% | −162−19.3% | Reduced | Holders |
| Q2 2023 | 841 | $454.3K | <0.1% | +83+10.9% | Added | Holders |
| Q1 2023 | 758 | $379.4K | <0.1% | −23−2.9% | Reduced | Holders |
| Q4 2022 | 781 | $276.2K | <0.1% | +185+31.0% | Added | Holders |
| Q3 2022 | 596 | $217.0K | <0.1% | −16−2.6% | Reduced | Holders |
| Q2 2022 | 612 | $235.0K | <0.1% | +612 | New | Holders |