Does Great Lakes Advisors own MPWR stock?

Yes. As of its Q2 2026 13F, Great Lakes Advisors holds 1,162 shares of MPWR (Monolithic Power Systems), worth $1.6M.

How many shares of MPWR does Great Lakes Advisors own?

As of its Q2 2026 13F, Great Lakes Advisors holds 1,162 shares of MPWR (Monolithic Power Systems).

As of its Q2 2026 13F, Great Lakes Advisors' MPWR position is worth $1.6M.

In Q2 2026, Great Lakes Advisors reduced its MPWR position by 32 shares (-2.7%).

Great Lakes Advisors already held MPWR in its Q1 2019 13F, the earliest on record, and has listed it in 30 quarterly 13F filings.

Position history for GREAT LAKES ADVISORS, LLC's holdings in MONOLITHIC PWR SYS INC

Current Value

$1.6M

Current Shares

1,162

Total Value Change

-$16M

Total Shares Change

-129,017

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	1,162	-2.7%	$1.6M	0.0%	$1,380.32	0
2026-Q1	Decreased	1,194	-3.7%	$1.3M	0.0%	$1,090.07	0
2025-Q4	Decreased	1,240	-1.4%	$1.1M	0.0%	$901.84	0
2025-Q3	Decreased	1,258	-8.4%	$1.2M	0.0%	$914.50	0
2025-Q2	Decreased	1,374	-1.3%	$1M	0.0%	$725.23	0
2025-Q1	Decreased	1,392	-2.5%	$807,332	0.0%	$573.88	0
2024-Q4	Decreased	1,428	-1.6%	$844,948	0.0%	$583.90	0
2024-Q3	Decreased	1,452	-13.4%	$1.3M	0.0%	$910.43	0
2024-Q2	Decreased	1,676	-2.3%	$1.4M	0.0%	$808.08	0
2024-Q1	Increased	1,716	+0.3%	$1.2M	0.0%	$665.18	25
2023-Q4	Decreased	1,710	-0.5%	$1.1M	0.0%	$618.22	0
2023-Q3	Decreased	1,718	-1.4%	$793,716	0.0%	$452.09	0
2023-Q2	Decreased	1,742	-8.0%	$941,081	0.0%	$527.44	0
2023-Q1	Decreased	1,894	-11.1%	$948,023	0.0%	$487.77	0
2022-Q4	Decreased	2,131	-5.0%	$753,543	0.0%	$343.88	0
2022-Q3	Decreased	2,244	-0.8%	$815,000	0.0%	$352.63	0
2022-Q2	Unchanged	2,262	0.0%	$869,000	0.0%	$371.92	0
2022-Q1	Decreased	2,262	-0.2%	$1.1M	0.0%	$469.46	0
2021-Q4	Increased	2,267	+0.1%	$1.1M	0.0%	$476.16	25
2021-Q3	Decreased	2,264	-4.7%	$1.1M	0.0%	$467.25	0
2021-Q2	Decreased	2,376	-3.7%	$887,000	0.0%	$359.58	0
2021-Q1	Decreased	2,468	-4.6%	$872,000	0.0%	$339.54	0
2020-Q4	Decreased	2,588	-0.1%	$948,000	0.0%	$351.44	0
2020-Q3	Decreased	2,590	-4.4%	$724,000	0.0%	$267.94	0
2020-Q2	Decreased	2,708	-6.4%	$642,000	0.0%	$226.69	0
2020-Q1	Decreased	2,892	-96.8%	$484,000	0.0%	$159.82	0
2019-Q4	Decreased	89,781	-37.5%	$16M	0.3%	$169.38	0
2019-Q3	Increased	143,552	+7.6%	$22.3M	0.5%	$147.74	37
2019-Q2	Increased	133,391	+2.5%	$18.1M	0.4%	$128.58	35
2019-Q1	First report	130,179	-	$17.6M	0.4%	$127.90	0