Rokos Capital Management (UK)’s Monolithic Power Systems MPWR Stock Holding History

Rokos Capital Management (UK)’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
2025 Q3	–	Sell	-121,436	Closed	-$88.8M	–	202
2025 Q2	$88.8M	Sell	121,436 -7,921	-6%	-$5.05M	0.39%	31
2025 Q1	$75M	Sell	129,357 -51,487	-28%	-$32.4M	0.78%	25
2024 Q4	$107M	Buy	180,844 +104,326	+136%	+$75.5M	1.07%	19
2024 Q3	$70.8M	Buy	76,518 +43,189	+130%	+$37.3M	1.15%	24
2024 Q2	$27.3M	Sell	33,329 -14,000	-30%	-$10.1M	0.17%	50
2024 Q1	$32M	Sell	47,329 -63,492	-57%	-$42.4M	0.17%	47
2023 Q4	$69.9M	Sell	110,821 -90,521	-45%	-$47.3M	0.61%	22
2023 Q3	$93.2M	Buy	201,342 +115,250	+134%	+$59M	0.68%	20
2023 Q2	$46.7M	Buy	+86,092	New	+$40.9M	0.45%	30

Other funds holding MPWR

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

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

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Rokos Capital Management (UK)'s MPWR Position: Q3 2025 in Review

Rokos Capital Management (UK) sold out of Monolithic Power Systems (MPWR) in Q3 2025, closing a stake of 121,436 shares — an estimated $88.8M sold.

Rokos Capital Management (UK) first reported a position in MPWR in Q2 2023 and held it in 9 quarters. The position peaked at $107M in Q4 2024. 981 funds tracked by Wall St. Rank hold MPWR as of Q3 2025.

Rokos Capital Management (UK) reported no remaining Monolithic Power Systems position as of Q3 2025 after selling out during the quarter.
Rokos Capital Management (UK) sold 121,436 Monolithic Power Systems shares in Q3 2025, an estimated $88.8M.
Rokos Capital Management (UK) first reported a position in Monolithic Power Systems in Q2 2023 and held it in 9 quarters.
Rokos Capital Management (UK)'s Monolithic Power Systems position peaked at $107M in Q4 2024.
981 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q3 2025.

Based on Rokos Capital Management (UK)'s 13F filing for Q3 2025, filed 14 Nov 2025.