Monolithic Power Systems Inc

PARNASSUS INVESTMENTS, LLC MPWR

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/12/2026

Shares

26,590

Value ($000)

24,100

Weight

0.1%

2020 Q2 - 2025 Q4 (23 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/12/2026	24,100	0.1%	26,590	12/31/2025
2025 Q3	10/24/2025	25,236	0.1%	27,411	9/30/2025
2025 Q2	8/6/2025	20,268	0.0%	27,712	6/30/2025
2025 Q1	5/15/2025	16,500	0.0%	28,450	3/31/2025
2024 Q4	2/10/2025	16,834	0.0%	28,450	12/31/2024
2024 Q3	11/8/2024	21,084	0.0%	22,806	9/30/2024
2024 Q2	8/6/2024	25,195	0.1%	30,663	6/30/2024
2024 Q1	5/9/2024	20,772	0.0%	30,663	3/31/2024
2023 Q4	2/12/2024	19,342	0.0%	30,663	12/31/2023
2023 Q3	11/8/2023	13,083	0.0%	28,318	9/30/2023
2023 Q2	7/31/2023	15,298	0.0%	28,318	6/30/2023
2023 Q1	5/1/2023	14,174	0.0%	28,318	3/31/2023
2022 Q4	1/30/2023	13,950	0.0%	39,450	12/31/2022
2022 Q3	11/14/2022	5,871	0.0%	16,156	9/30/2022
2022 Q2	8/5/2022	19,303	0.0%	50,262	6/30/2022
2022 Q1	5/11/2022	24,411	0.0%	50,262	3/31/2022
2021 Q4	2/11/2022	24,796	0.0%	50,262	12/31/2021
2021 Q3	11/16/2021	24,361	0.1%	50,262	9/30/2021
2021 Q2	8/5/2021	18,770	0.0%	50,262	6/30/2021
2021 Q1	5/6/2021	17,753	0.0%	50,262	3/31/2021
2020 Q4	2/10/2021	18,407	0.0%	50,262	12/31/2020
2020 Q3	11/13/2020	14,054	0.0%	50,262	9/30/2020
2020 Q2	8/12/2020	12,185	0.0%	51,414	6/30/2020