Woodline Partners’s Monolithic Power Systems MPWR Stock Holding History

Woodline Partners’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	$2.04M	Sell	1,869 -771	-29%	-$842K	0.01%	804
2025 Q4	$2.39M	Buy	+2,640	New	+$2.54M	0.01%	750
2025 Q3	–	Sell	-8,541	Closed	-$6.25M	–	993
2025 Q2	$6.25M	Buy	+8,541	New	+$5.44M	0.03%	519
2025 Q1	–	Sell	-2,667	Closed	-$1.58M	–	988
2024 Q4	$1.58M	Buy	+2,667	New	+$1.93M	0.01%	692
2023 Q4	–	Sell	-36,627	Closed	-$16.9M	–	593
2023 Q3	$16.9M	Buy	+36,627	New	+$18.7M	0.2%	151
2023 Q2	–	Sell	-25,531	Closed	-$12.8M	–	709
2023 Q1	$12.8M	Sell	25,531 -28,991	-53%	-$13.3M	0.17%	168
2022 Q4	$19.3M	Sell	54,522 -7,909	-13%	-$2.84M	0.26%	115
2022 Q3	$22.7M	Buy	62,431 +6,408	+11%	+$2.85M	0.32%	87
2022 Q2	$21.5M	Buy	+56,023	New	+$23.7M	0.33%	93
2022 Q1	–	Sell	-41,813	Closed	-$20.6M	–	786
2021 Q4	$20.6M	Buy	+41,813	New	+$21.6M	0.3%	91
2021 Q3	–	Sell	-36,855	Closed	-$13.8M	–	726
2021 Q2	$13.8M	Buy	+36,855	New	+$13M	0.26%	105
2021 Q1	–	Sell	-53,328	Closed	-$19.5M	–	458
2020 Q4	$19.5M	Buy	+53,328	New	+$17.1M	0.52%	60
2020 Q3	–	Sell	-39,878	Closed	-$9.45M	–	201
2020 Q2	$9.45M	Buy	+39,878	New	+$8.07M	0.37%	75

Other funds holding MPWR

BlackRock New York $5.72T AUM 30.48% 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 $2.9T AUM 29.55% 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

Woodline Partners's MPWR Position: Q1 2026 in Review

Woodline Partners reduced its Monolithic Power Systems (MPWR) stake by 29% in Q1 2026, selling an estimated $842K and leaving 1,869 shares worth $2.04M. The position accounts for 0.01% of the portfolio, ranked #804.

Woodline Partners first reported a position in MPWR in Q2 2020 and has held it in 13 quarters since. The position peaked at $22.7M in Q3 2022. 1,114 funds tracked by Wall St. Rank hold MPWR as of Q1 2026.

Woodline Partners held 1,869 shares of Monolithic Power Systems worth $2.04M as of Q1 2026.
Woodline Partners sold 771 Monolithic Power Systems shares in Q1 2026, an estimated $842K.
Monolithic Power Systems made up 0.01% of Woodline Partners's portfolio in Q1 2026, its #804 holding.
Woodline Partners first reported a position in Monolithic Power Systems in Q2 2020 and has held it in 13 quarters since.
Woodline Partners's Monolithic Power Systems position peaked at $22.7M in Q3 2022.
1,114 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q1 2026.

Based on Woodline Partners's 13F filing for Q1 2026, filed 15 May 2026.