Question 1

How many shares of MPWR does FMR LLC own?

Accepted Answer

As of 2026-Q2, FMR LLC holds 5.2M shares of MPWR (MONOLITHIC POWER SYSTEMS INC).

Question 2

What is FMR LLC's MPWR position worth?

Accepted Answer

As of 2026-Q2, FMR LLC's MPWR position is worth $7.2B.

Question 3

Is FMR LLC buying or selling MPWR?

Accepted Answer

In 2026-Q2, FMR LLC increased their MPWR position (+17.6% change in shares).

Question 4

When did FMR LLC first buy MPWR?

Accepted Answer

Based on available 13F filings, FMR LLC first reported a position in MPWR in 2024-Q4. They have held the position across 7 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	5.2M	+17.6%	$7.2B	0.3%	$1,382.36	45
2026-Q1	Increased	4.4M	+10.7%	$4.8B	0.3%	$1,074.37	42
2025-Q4	Increased	4M	+11.6%	$3.6B	0.2%	$922.35	43
2025-Q3	Increased	3.6M	+5.1%	$3.3B	0.2%	$883.54	40
2025-Q2	Decreased	3.4M	-3.0%	$2.5B	0.1%	$731.94	0
2025-Q1	Increased	3.5M	+12.2%	$2B	0.1%	$575.12	43
2024-Q4	New	3.1M	-	$1.8B	0.1%	$597.44	53

MPWR7 quarters

MPWR
7 quarters