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Monolithic Power Systems

MPWR Net selling

CIK 0001280452 #321 in the set updated 17 Sep 2026

Bought (1 mo)

$0.00

out of their own pocket, the only kind of buying there is

Sold (1 mo)

$114.09K

$0.00 on a plan · $0.00 straight out of an exercise

Sold at will

$114.09K

3 of 3 sales

Net

−$114.09K

−$114.09K against sales at will

By person

12 insiders · 3 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

CHANG KUO WEI HERBERT

Director

—

$64.08K (1)

−$64.08K

515

0.0010%

$660.01K

−4.8%

DEAN ROBERT W II

Interim CFO

—

$50.01K (2)

−$50.01K

7,089

0.0144%

$9.09M

−12.0%

Hsing Michael

CEO

—

848,263

1.73%

$1.09B

−1.5%

Xiao Deming

EVP, Global Operations

—

210,295

0.4279%

$269.51M

+26.3%

Sciammas Maurice

EVP, WW Sales & Marketing

—

162,706

0.3311%

$208.52M

+2.1%

Tseng Saria

EVP & General Counsel

—

146,218

0.2975%

$187.39M

−9.5%

BLEGEN THEODORE

EVP and CFO

—

82,353

0.1676%

$105.54M

+33.5%

Lee Victor K

Director

—

27,756

0.0565%

$35.57M

−5.0%

Elmiger Eugen J

Director

—

5,402

0.0110%

$6.92M

−74.1%

Zhou Jeff

Director

—

3,800

0.0077%

$4.87M

−37.4%

Martinez Carintia

Director

—

1,067

0.0022%

$1.37M

−45.1%

Wynne Eileen

Director

—

1,007

0.0020%

$1.29M

+23.1%

Individual transactions

Insider

Date

Role

Action

Price

Amount

CHANG KUO WEI HERBERT

24 Aug 2026

Director

Sell

$1,281.57

$64.08K

DEAN ROBERT W II

24 Aug 2026

Interim CFO

Sell

$1,297.72

$41.53K

DEAN ROBERT W II

17 Aug 2026

Interim CFO

Sell

$1,413.64

$8.48K

What was left out

Form 4 filings counted 4

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 0

Sales straight out of an exercise 0

Sales at will 3

Transactions with no price 0

Shares from compensation/vesting 4,005

History held since 30 Aug 2016