Sustainable Insight Capital Management’s Monolithic Power Systems MPWR Stock Holding History

Sustainable Insight Capital 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 Q1	$243K	Hold	222	–	–	0.08%	81
2025 Q4	$201K	Sell	222 -22	-9%	-$21.2K	0.07%	76
2025 Q3	$225K	Buy	+244	New	+$198K	0.07%	67
2023 Q1	–	Sell	-836	Closed	-$296K	–	115
2022 Q4	$296K	Hold	836	–	–	0.33%	69
2022 Q3	$304K	Sell	836 -164	-16%	-$72.9K	0.36%	73
2022 Q2	$424K	Hold	1,000	–	–	0.42%	52
2022 Q1	$486K	Buy	1,000 +419	+72%	+$183K	0.35%	54
2021 Q4	$287K	Buy	+581	New	+$300K	0.15%	87
2021 Q2	–	Sell	-2,063	Closed	-$729K	–	138
2021 Q1	$729K	Buy	+2,063	New	+$751K	0.48%	49

Other funds holding MPWR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Sustainable Insight Capital Management's MPWR Position: Q1 2026 in Review

Sustainable Insight Capital Management held its Monolithic Power Systems (MPWR) position steady in Q1 2026 at 222 shares worth $243K. The position accounts for 0.08% of the portfolio, ranked #81.

Sustainable Insight Capital Management first reported a position in MPWR in Q1 2021 and has held it in 9 quarters since. The position peaked at $729K in Q1 2021. 1,119 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

Sustainable Insight Capital Management held 222 shares of Monolithic Power Systems worth $243K as of Q1 2026.
Sustainable Insight Capital Management left its Monolithic Power Systems share count unchanged in Q1 2026.
Monolithic Power Systems made up 0.08% of Sustainable Insight Capital Management's portfolio in Q1 2026, its #81 holding.
Sustainable Insight Capital Management first reported a position in Monolithic Power Systems in Q1 2021 and has held it in 9 quarters since.
Sustainable Insight Capital Management's Monolithic Power Systems position peaked at $729K in Q1 2021.
1,119 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Sustainable Insight Capital Management's 13F filing for Q1 2026, filed 14 May 2026.