OP Asset Management’s Monolithic Power Systems MPWR Stock Holding History

OP Asset Management’s Portfolio MPWR Stock Details MPWR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$19.7M	Sell	14,254 -2,670	-16%	-$4.01M	0.21%	81
2026 Q1	$18.5M	Buy	16,924 +11,857	+234%	+$13M	0.19%	77
2025 Q4	$4.59M	Buy	5,067 +63	+1%	+$60.6K	0.05%	251
2025 Q3	$4.61M	Sell	5,004 -65	-1%	-$52.7K	0.06%	254
2025 Q2	$3.71M	Sell	5,069 -23	-0.5%	-$14.7K	0.05%	285
2025 Q1	$2.95M	Buy	+5,092	New	+$3.21M	0.05%	321

Other funds holding MPWR

VNIM

Vaughan Nelson Investment Management Houston, Texas $11.3B AUM 53% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return

Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return

Robeco Schweiz Zurich, Switzerland $6.23B AUM 86.54% 1-Year Est. Return

CAM

Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return

ZCI

Zevenbergen Capital Investments Edmonds, Washington $4.38B AUM 56.68% 1-Year Est. Return

STRS Ohio Columbus, Ohio $26.7B AUM 43.32% 1-Year Est. Return

New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return

RAM

Resona Asset Management Koto-Ku,tokyo, Japan $21.3B AUM 36.92% 1-Year Est. Return

OP Asset Management's MPWR Position: Q2 2026 in Review

OP Asset Management reduced its Monolithic Power Systems (MPWR) stake by 16% in Q2 2026, selling an estimated $4.01M and leaving 14,254 shares worth $19.7M. The position accounts for 0.21% of the portfolio, ranked #81.

OP Asset Management first reported a position in MPWR in Q1 2025 and has held it in 6 quarters since. 466 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

OP Asset Management held 14,254 shares of Monolithic Power Systems worth $19.7M as of Q2 2026.
OP Asset Management sold 2,670 Monolithic Power Systems shares in Q2 2026, an estimated $4.01M.
Monolithic Power Systems made up 0.21% of OP Asset Management's portfolio in Q2 2026, its #81 holding.
OP Asset Management first reported a position in Monolithic Power Systems in Q1 2025 and has held it in 6 quarters since.
466 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on OP Asset Management's 13F filing for Q2 2026, filed 28 Jul 2026.