Ostrum Asset Management
- SEC CIK
- 0001767945
- Latest filing
- Aug 13, 2026
MPWR holding history
Monolithic Power Systems, Inc. in every 13F filed by Ostrum Asset Management, 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)
- 27,940
- Value
- $38.6M
- % of portfolio
- 1.9%
- Quarters held
- 14
- Since Q1 2023
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 27,940 | $38.6M | 1.9% | +7,184+34.6% | Added | Holders |
| Q1 2026 | 20,756 | $22.7M | 1.3% | −26,126−55.7% | Reduced | Holders |
| Q4 2025 | 46,882 | $42.5M | 2.0% | +5,578+13.5% | Added | Holders |
| Q3 2025 | 41,304 | $38.0M | 1.7% | −512−1.2% | Reduced | Holders |
| Q2 2025 | 41,816 | $30.6M | 1.4% | −5,536−11.7% | Reduced | Holders |
| Q1 2025 | 47,352 | $27.5M | 1.4% | +47,073+16,872.0% | Added | Holders |
| Q4 2024 | 279 | $165.1K | <0.1% | −10−3.5% | Reduced | Holders |
| Q3 2024 | 289 | $267.2K | <0.1% | +3+1.0% | Added | Holders |
| Q2 2024 | 286 | $235.0K | <0.1% | −21−6.8% | Reduced | Holders |
| Q1 2024 | 307 | $208.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2023 | 307 | $193.6K | <0.1% | +1+0.3% | Added | Holders |
| Q3 2023 | 306 | $141.4K | <0.1% | −2−0.6% | Reduced | Holders |
| Q2 2023 | 308 | $166.4K | <0.1% | −507−62.2% | Reduced | Holders |
| Q1 2023 | 815 | $407.9K | <0.1% | – | No prior filing | Holders |