Does Clearbridge Investments own MPWR stock?

Yes. As of its Q2 2026 13F, Clearbridge Investments holds 12,222 shares of MPWR, worth $16.9M.

How many shares of MPWR does Clearbridge Investments own?

As of its Q2 2026 13F, Clearbridge Investments holds 12,222 shares of MPWR.

What is Clearbridge Investments' MPWR position worth?

As of its Q2 2026 13F, Clearbridge Investments' MPWR position is worth $16.9M.

Is Clearbridge Investments buying or selling MPWR?

In Q2 2026, Clearbridge Investments reduced its MPWR position by 4,495 shares (-26.9%).

When did Clearbridge Investments first buy MPWR?

Clearbridge Investments already held MPWR in its Q4 2018 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

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Clearbridge Investments, LLC

MPWR

31 quarters

Position history for Clearbridge Investments, LLC's holdings in Monolithic Power Systems, Inc.

Current Value

$16.9M

Current Shares

12,222

Total Value Change

-$74.5M

Total Shares Change

-773,888

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	12,222	-26.9%	$16.9M	0.0%	$1,380.32	0
2026-Q1	Increased	16,717	+81.5%	$18.3M	0.0%	$1,090.07	44
2025-Q4	Unchanged	9,211	0.0%	$8.3M	0.0%	$901.84	0
2025-Q3	Increased	9,211	+2.9%	$8.5M	0.0%	$914.50	28
2025-Q2	Decreased	8,952	-77.1%	$6.5M	0.0%	$725.23	0
2025-Q1	Decreased	39,120	-25.8%	$22.7M	0.0%	$573.88	0
2024-Q4	Decreased	52,746	-1.6%	$31.2M	0.0%	$583.90	0
2024-Q3	Decreased	53,580	-74.3%	$49.5M	0.0%	$910.43	0
2024-Q2	Decreased	208,362	-36.0%	$171.2M	0.1%	$808.08	0
2024-Q1	Decreased	325,750	-16.5%	$220.7M	0.2%	$665.18	0
2023-Q4	Decreased	390,036	-4.0%	$246M	0.2%	$618.22	0
2023-Q3	Decreased	406,338	-0.4%	$187.7M	0.2%	$452.09	0
2023-Q2	Decreased	407,844	-3.9%	$220.3M	0.2%	$527.44	0
2023-Q1	Decreased	424,396	-5.2%	$212.4M	0.2%	$487.77	0
2022-Q4	Decreased	447,840	-4.4%	$158.4M	0.2%	$343.88	0
2022-Q3	Increased	468,672	+0.1%	$170.3M	0.2%	$352.63	36
2022-Q2	Increased	468,235	+0.1%	$179.8M	0.2%	$371.92	36
2022-Q1	Decreased	467,938	-0.0%	$227.3M	0.2%	$469.46	0
2021-Q4	Decreased	468,074	-13.3%	$230.9M	0.2%	$476.16	0
2021-Q3	Decreased	539,705	-0.9%	$261.6M	0.2%	$467.25	0
2021-Q2	Decreased	544,899	-22.9%	$203.5M	0.1%	$359.58	0
2021-Q1	Decreased	706,352	-3.8%	$249.5M	0.2%	$339.54	0
2020-Q4	Decreased	734,463	-10.3%	$269M	0.2%	$351.44	0
2020-Q3	Decreased	818,338	-0.3%	$228.8M	0.2%	$267.94	0
2020-Q2	Decreased	821,144	-10.9%	$194.6M	0.2%	$226.69	0
2020-Q1	Increased	921,247	+6.2%	$154.3M	0.2%	$159.82	39
2019-Q4	Increased	867,901	+0.1%	$156.2M	0.1%	$169.38	36
2019-Q3	Increased	867,295	+0.1%	$135M	0.1%	$147.74	36
2019-Q2	Decreased	866,714	-0.9%	$117.7M	0.1%	$128.58	0
2019-Q1	Increased	874,866	+11.3%	$118.5M	0.1%	$127.90	40
2018-Q4	First report	786,110	-	$91.4M	0.1%	$109.42	0

Other major holders of MPWR: BlackRock, Inc., FMR LLC, Vanguard Group Inc.