How many shares of MPWR does WHITTIER TRUST CO own?

As of 2026-Q2, WHITTIER TRUST CO holds 41,902 shares of MPWR (MONOLITHIC POWER SYSTEMS INC).

What is WHITTIER TRUST CO's MPWR position worth?

As of 2026-Q2, WHITTIER TRUST CO's MPWR position is worth $56.4M.

In 2026-Q2, WHITTIER TRUST CO decreased their MPWR position (-0.3% change in shares).

Based on available 13F filings, WHITTIER TRUST CO first reported a position in MPWR in 2019-Q1. They have held the position across 30 quarters.

Position history for WTWHITTIER TRUST CO's holdings in MONOLITHIC POWER SYSTEMS INC

Current Value

$56.4M

Current Shares

41,902

Total Value Change

+$49.5M

Total Shares Change

-8,888

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	41,902	-0.3%	$56.4M	0.6%	$1,382.36	0
2026-Q1	Decreased	42,010	-5.1%	$49.6M	0.6%	$1,074.37	0
2025-Q4	Increased	44,252	+0.1%	$44.5M	0.5%	$922.35	35
2025-Q3	Increased	44,201	+1.6%	$40.6M	0.5%	$883.54	35
2025-Q2	Increased	43,523	+2.4%	$31.8M	0.4%	$731.94	35
2025-Q1	Increased	42,486	+2.3%	$24.6M	0.3%	$575.12	35
2024-Q4	Increased	41,532	+3.1%	$24.6M	0.3%	$597.44	35
2024-Q3	Increased	40,290	+3.6%	$37.2M	0.5%	$914.24	36
2024-Q2	Increased	38,884	+4.8%	$31.9M	0.5%	$812.13	36
2024-Q1	Increased	37,091	+3.5%	$25.1M	0.4%	$668.51	35
2023-Q4	Decreased	35,820	-7.7%	$22.6M	0.4%	$621.32	0
2023-Q3	Increased	38,787	+2.2%	$17.9M	0.3%	$454.36	35
2023-Q2	Decreased	37,941	-10.9%	$20.5M	0.4%	$525.74	0
2023-Q1	Increased	42,599	+9.0%	$21.3M	0.4%	$487.52	37
2022-Q4	Decreased	39,092	-19.7%	$13.8M	0.3%	$345.61	0
2022-Q3	Increased	48,701	+4.3%	$17.7M	0.4%	$356.34	35
2022-Q2	Increased	46,710	+1.1%	$17.9M	0.4%	$381.93	34
2022-Q1	Increased	46,204	+4.2%	$22.4M	0.4%	$474.46	36
2021-Q4	Decreased	44,323	-10.3%	$21.9M	0.4%	$476.77	0
2021-Q3	Decreased	49,407	-1.1%	$23.9M	0.4%	$469.52	0
2021-Q2	Increased	49,932	+6.0%	$18.6M	0.3%	$365.20	36
2021-Q1	Increased	47,126	+7.4%	$16.6M	0.3%	$330.98	36
2020-Q4	Decreased	43,883	-23.5%	$16.1M	0.3%	$347.90	0
2020-Q3	Increased	57,383	+0.9%	$16M	0.4%	$266.39	34
2020-Q2	Decreased	56,864	-1.5%	$13.5M	0.4%	$221.05	0
2020-Q1	Increased	57,749	+5.3%	$9.7M	0.3%	$158.45	35
2019-Q4	Increased	54,818	+2.4%	$9.8M	0.3%	$170.58	34
2019-Q3	Increased	53,549	+1.1%	$8.3M	0.2%	$149.43	33
2019-Q2	Increased	52,988	+4.3%	$7.2M	0.2%	$129.22	34
2019-Q1	New	50,790	-	$6.9M	0.2%	$128.54	45