Ownership history in OSTRUM ASSET MANAGEMENT · 12 quarters on record
This page tracks every 13F SEC filing in which OSTRUM ASSET MANAGEMENT reported a position in MONOLITHIC PWR SYS INC (MPWR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | ADDED | 46,882 | +5,578 | +13.5% | 2.04% | $42.5M | $906.36 |
| 2025 Q3 | REDUCED | 41,304 | -512 | -1.2% | 1.71% | $38.0M | $919.09 |
| 2025 Q2 | REDUCED | 41,816 | -5,536 | -11.7% | 1.43% | $30.6M | $728.86 |
| 2025 Q1 | ADDED | 47,352 | +47,073 | +16872.0% | 1.45% | $27.5M | $576.76 |
| 2024 Q4 | REDUCED | 279 | -10 | -3.5% | 0.01% | $165K | $586.83 |
| 2024 Q3 | ADDED | 289 | +3 | +1.0% | 0.02% | $267K | $914.99 |
| 2024 Q2 | REDUCED | 286 | -21 | -6.8% | 0.02% | $235K | $812.13 |
| 2024 Q1 | UNCHANGED | 307 | — | 0% | 0.02% | $208K | $668.51 |
| 2023 Q4 | ADDED | 307 | +1 | +0.3% | 0.02% | $194K | $621.32 |
| 2023 Q3 | REDUCED | 306 | -2 | -0.6% | 0.01% | $141K | $454.36 |
As of 2025 Q4 — sorted by position size