Monolithic Power Systems MPWR Institutional Ownership

NASDAQ MPWR

$1,223.86 +10.21 (+0.84%)

At close: Sep 4, 2026 · 4:00 PM EDT

Institutions by Trading Activity

1,244 Institutions

Increased 637 51.2%

Unchanged 149 12.0%

Reduced 458 36.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

97.73%

▲+3.66 pp QoQ

Shares Held by Institutions

48.02Mn

of 49.14Mn outstanding

▲+6.68% QoQ

Shares Outstanding

49.14Mn

1.11Mn held outside 13F filers

Institutional Investors

1,244

filed 13F for Jun 2026

▲+126 vs prior quarter

Net Shares Added (QoQ)

+3.01Mn

accumulated since last quarter

Value of Holdings

$58.78Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Monolithic Power Systems, Inc. (NASDAQ:MPWR) has 1,244 institutional investors that have filed 13F reports for the period ending June 2026.

These investors collectively held 97.7% of Monolithic Power Systems's outstanding shares in June 2026, up from 94.1% in March 2026.
Their total shares held in MPWR increased 6.68% from the prior quarter, while the number of investors in Monolithic Power Systems increased 36.55% year over year.
During the quarter, 637 of these 1,244 funds increased positions in MPWR, 458 reduced exposure, and 149 held steady.
Altogether, these fund groups held 48.02Mn shares in MPWR by June 2026, up by 3.01Mn shares quarter on quarter, and up 79.55K shares year over year.
As of June 30, 2026, BlackRock, Inc. held the largest stake in Monolithic Power Systems with 5.59Mn shares, accounting for 11.38% of total shares outstanding.
The biggest buyers of Monolithic Power Systems for the quarter ending June 2026 included Invesco Ltd. (858.84K), FMR LLC (776.43K), NORGES BANK (751.4K), Sixth Street Partners Management Company, L.P. (388.95K), VAN ECK ASSOCIATES CORP (221.67K).
The largest sales of MPWR for the quarter ending June 2026 came from BlackRock, Inc. (482.54K), PRICE T ROWE ASSOCIATES INC /MD/ (286.16K), GEODE CAPITAL MANAGEMENT, LLC (236.78K), BROWN ADVISORY INC (199.46K), WELLINGTON MANAGEMENT GROUP LLP (178.51K).
Business Quant data shows the 10 biggest positions in Monolithic Power Systems as of June 2026 are held by BlackRock, Inc. (5.59Mn), FMR LLC (5.18Mn), VANGUARD CAPITAL MANAGEMENT LLC (3.13Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (2.5Mn), Invesco Ltd. (2.34Mn), State Street Corp (2.28Mn), GEODE CAPITAL MANAGEMENT, LLC (1.2Mn), PRICE T ROWE ASSOCIATES INC /MD/ (976.8K), Franklin Resources Inc (811.97K), Goldman Sachs Group Inc (780.65K).

Form 13F Holdings

1,244 Institutional Holders

Report period 30 Jun, 2026

Total shares held 48.02Mn

Of outstanding 97.73%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	5,589,925	11.38%	▼482,542	-7.95%	$7.73Bn
2	FMR LLC	0000315066	5,177,258	10.54%	▲776,427	+17.64%	$7.16Bn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	3,126,756	6.36%	▲43,307	+1.40%	$4.32Bn
4	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	2,504,858	5.10%	▼11,634	-0.46%	$3.46Bn
5	Invesco Ltd.	0000914208	2,343,930	4.77%	▲858,837	+57.83%	$3.24Bn
6	State Street Corp	0000093751	2,282,186	4.64%	▲93,732	+4.28%	$3.16Bn
7	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,195,281	2.43%	▼236,785	-16.53%	$1.65Bn
8	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	976,798	1.99%	▼286,156	-22.66%	$1.35Mn
9	Franklin Resources Inc	0000038777	811,974	1.65%	▼116,697	-12.57%	$1.12Bn
10	Goldman Sachs Group Inc	0000886982	780,650	1.59%	▲212,586	+37.42%	$1.08Bn
11	NORGES BANK	0001374170	751,399	1.53%	▲751,399	0.00%	$1.04Bn
12	VAN ECK ASSOCIATES CORP	0000869178	746,237	1.52%	▲221,666	+42.26%	$1.03Bn
13	Morgan Stanley	0000895421	727,871	1.48%	▲71,518	+10.90%	$1.01Bn
14	Bank Of America Corp /De/	0000070858	536,236	1.09%	▲154,074	+40.32%	$741.27Mn
15	Royal Bank Of Canada	0001000275	487,212	0.99%	▲13,844	+2.92%	$673.50Mn
16	FIRST TRUST ADVISORS LP	0001125816	482,781	0.98%	▼108,572	-18.36%	$667.38Mn
17	Northern Trust Corp	0000073124	479,492	0.98%	▼9,628	-1.97%	$662.83Mn
18	Barclays Plc	0000312069	474,132	0.96%	▼81,676	-14.70%	$655.42Mn
19	Rafferty Asset Management, LLC	0001389426	459,278	0.93%	▲141,805	+44.67%	$634.89Mn
20	UBS Group AG	0001610520	449,479	0.91%	▼90,934	-16.83%	$621.34Mn

Showing 1 to 20 of 1,244 holders