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Overview
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Business Summary
Filings
Ownership
Valuation
Ownership — MPWR
Institutional Holdings
Insider Transactions
US Institutional Ownership
95.8%
Institution
Shares
Value
Ownership %
Change
Filing Date
BlackRock, Inc.
5.59M
$7.73B
11.38%
-482.5K
2026-06-30
FMR LLC
5.18M
$7.16B
10.54%
+776.4K
2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC
3.13M
$4.32B
6.36%
+43.3K
2026-06-30
VANGUARD PORTFOLIO MANAGEMENT LLC
2.50M
$3.46B
5.10%
-11.6K
2026-06-30
Invesco Ltd.
2.34M
$3.24B
4.77%
+858.8K
2026-06-30
STATE STREET CORP
2.28M
$3.16B
4.64%
+93.7K
2026-06-30
GEODE CAPITAL MANAGEMENT, LLC
1.20M
$1.65B
2.43%
-236.8K
2026-06-30
PRICE T ROWE ASSOCIATES INC /MD/
976.8K
$1.35B
1.99%
-286.2K
2026-06-30
FRANKLIN RESOURCES INC
812.0K
$1.12B
1.65%
-116.7K
2026-06-30
GOLDMAN SACHS GROUP INC
791.3K
$1.09B
1.61%
+223.2K
2026-06-30
NORGES BANK
751.4K
$1.04B
1.53%
+24.7K
2026-06-30
VAN ECK ASSOCIATES CORP
746.2K
$1.03B
1.52%
+221.7K
2026-06-30
MORGAN STANLEY
727.9K
$1.01B
1.48%
+71.5K
2026-06-30
BANK OF AMERICA CORP /DE/
536.2K
$741.0M
1.09%
+154.1K
2026-06-30
FIRST TRUST ADVISORS LP
482.8K
$667.0M
0.98%
-108.6K
2026-06-30
NORTHERN TRUST CORP
479.5K
$662.0M
0.98%
-9.6K
2026-06-30
Rafferty Asset Management, LLC
459.3K
$634.0M
0.93%
+141.8K
2026-06-30
UBS Group AG
450.5K
$622.0M
0.92%
-91.4K
2026-06-30
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
442.2K
$611.0M
0.90%
-125.6K
2026-06-30
JPMORGAN CHASE & CO
434.9K
$570.0M
0.89%
-77.3K
2026-06-30
JANE STREET GROUP, LLC
421.4K
$582.0M
0.86%
+349.5K
2026-06-30
Sixth Street Partners Management Company, L.P.
389.0K
$537.0M
0.79%
--
2026-06-30
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
389.0K
$537.0M
0.79%
+12.6K
2026-06-30
Legal & General Group Plc
359.9K
$497.0M
0.73%
-20.2K
2026-06-30
VOYA INVESTMENT MANAGEMENT LLC
340.3K
$469.0M
0.69%
-53.3K
2026-06-30
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