MPWR MONOLITHIC PWR SYS INC

Ownership history in Robeco Schweiz AG  ·  49 quarters on record

This page tracks every 13F SEC filing in which Robeco Schweiz AG 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.

Peak position
3.55% (2018 Q4)
Avg. % of fund
1.5%
First filed
2013 Q4
Last filed
2025 Q4
Quarters held
49
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 REDUCED 95,018 -8,219 -8.0% 1.93% $86.1M $906.36
2025 Q3 REDUCED 103,237 -3,506 -3.3% 2.14% $95.0M $919.09
2025 Q2 REDUCED 106,743 -9,303 -8.0% 1.80% $78.1M $728.86
2025 Q1 ADDED 116,046 +5,819 +5.3% 1.66% $67.3M $576.76
2024 Q4 REDUCED 110,227 -29,590 -21.2% 1.39% $65.2M $586.83
2024 Q3 REDUCED 139,817 -2,430 -1.7% 2.42% $129.3M $914.99
2024 Q2 REDUCED 142,247 -83,670 -37.0% 2.24% $116.9M $812.13
2024 Q1 REDUCED 225,917 -24,455 -9.8% 2.67% $153.0M $668.51
2023 Q4 ADDED 250,372 +6,162 +2.5% 2.65% $157.9M $621.32
2023 Q3 REDUCED 244,210 -4,600 -1.8% 1.91% $112.8M $454.36
39 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    MPWR price (monthly, adj. close)
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