Dearborn Partners LLC

SEC CIK: 0001206792
Latest filing: Aug 14, 2026

SEC filings (opens in a new tab)

MPWR holding history

Monolithic Power Systems, Inc. in every 13F filed by Dearborn Partners LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MPWR overview All 13F holders of MPWR Full Q2 2026 holdings

Shares (Q2 2026): 240
Value: $331.8K
% of portfolio: <0.1%
Quarters held: 4; Since Q3 2025

Holdings of MPWR by Dearborn Partners LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	240	$331.8K	<0.1%	00.0%	Unchanged	Holders
Q1 2026	240	$262.4K	<0.1%	−75−23.8%	Reduced	Holders
Q4 2025	315	$285.5K	<0.1%	+25+8.6%	Added	Holders
Q3 2025	290	$267.0K	<0.1%	+290	New	Holders