Fidelity International’s Monolithic Power Systems MPWR Stock Holding History

Fidelity International’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	$310M	Buy	224,582 +69,945	+45%	+$105M	0.22%	111
2026 Q1	$169M	Sell	154,637 -161,452	-51%	-$176M	0.13%	174
2025 Q4	$286M	Sell	316,089 -181,244	-36%	-$174M	0.21%	125
2025 Q3	$458M	Sell	497,333 -25,740	-5%	-$20.9M	0.36%	76
2025 Q2	$383M	Buy	523,073 +412,486	+373%	+$263M	0.33%	80
2025 Q1	$64.1M	Buy	110,587 +109,989	+18,393%	+$69.3M	0.06%	280
2024 Q4	$354K	Buy	598 +277	+86%	+$201K	﹤0.01%	812
2024 Q3	$297K	Buy	+321	New	+$277K	﹤0.01%	819
2014 Q2	–	Sell	-78,100	Closed	-$3.03M	–	559
2014 Q1	$3.03M	Buy	+78,100	New	+$2.75M	0.01%	476

Other funds holding MPWR

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

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

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

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

Norges Bank Oslo, Norway $1T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Fidelity International's MPWR Position: Q2 2026 in Review

Fidelity International increased its Monolithic Power Systems (MPWR) stake by 45% in Q2 2026, buying an estimated $105M and bringing the position to 224,582 shares worth $310M. The position accounts for 0.22% of the portfolio, ranked #111.

Fidelity International first reported a position in MPWR in Q1 2014 and has held it in 9 quarters since. The position peaked at $458M in Q3 2025. 1,011 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

Fidelity International held 224,582 shares of Monolithic Power Systems worth $310M as of Q2 2026.
Fidelity International bought 69,945 Monolithic Power Systems shares in Q2 2026, an estimated $105M.
Monolithic Power Systems made up 0.22% of Fidelity International's portfolio in Q2 2026, its #111 holding.
Fidelity International first reported a position in Monolithic Power Systems in Q1 2014 and has held it in 9 quarters since.
Fidelity International's Monolithic Power Systems position peaked at $458M in Q3 2025.
1,011 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Fidelity International's 13F filing for Q2 2026, filed 13 Aug 2026.