T. Rowe Price Investment Management, Inc.

Position in MPWR — Monolithic Power Systems Inc

CIK 1897612 BALTIMORE, MD

Position in MPWR

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$788,985,413

+$132,333,032 QoQ

Shares Held

721,622

-0.4% QoQ

Ownership

1.47%

of shares outstanding

% of Portfolio

0.55%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2022

7 quarters on record

Voting authority Sole 99.69332974881586.ToString("F0")% Shared 0.ToString("F0")% None 0.306670251184138.ToString("F0")%

Technology · as of Mar 31, 2026

T. Rowe Price Investment Management, Inc. holds $11,944,205,502 across 19 Semiconductors names. MPWR ranks #6 (6.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	NVDA	Nvidia Corp	19,437,830	$3,389,957,552
2	AVGO	Broadcom Inc.	6,359,838	$1,968,433,459
3	AMD	Advanced Micro Devices Inc	7,486,729	$1,523,025,280
4	LSCC	Lattice Semiconductor Corp	16,243,449	$1,506,742,329
5	MTSI	MACOM Technology Solutions Holdings, Inc.	4,486,082	$996,224,229
6	MPWR	Monolithic Power Systems Inc This page	721,622	$788,985,413
7	MCHP	Microchip Technology Inc	9,909,469	$640,250,792
8	NXPI	NXP Semiconductors N.V.	1,391,013	$273,834,819

7 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$788,985,413	721,622	-0.4%	Shares	Sole	2026-05-15
2025-12-31	$656,652,381	724,494	-3.5%	Shares	Sole	2026-02-19
2025-09-30	$691,113,400	750,688	-19.1%	Shares	Sole	2025-11-14
2025-06-30	$678,578,752	927,806	+195.1%	Shares	Sole	2025-08-14
2025-03-31	$182,374,131	314,449	+70.8%	Shares	Sole	2025-05-14
2024-12-31	$108,905,343	184,055	+654.2%	Shares	Sole	2025-02-14
2022-09-30	$8,868,413	24,404	—	Shares	Sole	2022-11-14
No filing history on record for this holder in this stock.