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Monolithic Power Systems

MPWR Net selling

CIK 0001280452 #321 in the set updated 17 Sep 2026

Bought (12 mo)

$0.00

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

Sold (12 mo)

$723.21M

$253.94M on a plan · $0.00 straight out of an exercise

Sold at will

$469.27M

139 of 324 sales

Net

−$723.21M

−$469.27M against sales at will

By person

12 insiders · 324 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Hsing Michael

CEO

—

$314.44M (81)

−$314.44M

848,263

1.73%

$1.09B

−1.5%

Tseng Saria

EVP & General Counsel

—

$164.17M (67)

−$164.17M

146,218

0.2975%

$187.39M

−9.5%

Sciammas Maurice

EVP, WW Sales & Marketing

—

$101.39M (61)

−$101.39M

162,706

0.3311%

$208.52M

+2.1%

Xiao Deming

EVP, Global Operations

—

$76.43M (5)

−$76.43M

210,295

0.4279%

$269.51M

+26.3%

BLEGEN THEODORE

EVP and CFO

—

$40.19M (78)

−$40.19M

82,353

0.1676%

$105.54M

+33.5%

Elmiger Eugen J

Director

—

$19.02M (9)

−$19.02M

5,402

0.0110%

$6.92M

−74.1%

Zhou Jeff

Director

—

$3.25M (4)

−$3.25M

3,800

0.0077%

$4.87M

−37.4%

Lee Victor K

Director

—

$2.00M (8) scheduled

−$2.00M

27,756

0.0565%

$35.57M

−5.0%

Martinez Carintia

Director

—

$1.26M (1) scheduled

−$1.26M

1,067

0.0022%

$1.37M

−45.1%

Wynne Eileen

Director

—

$530.20K (1)

−$530.20K

1,007

0.0020%

$1.29M

+23.1%

CHANG KUO WEI HERBERT

Director

—

$312.17K (4)

−$312.17K

515

0.0010%

$660.01K

−4.8%

DEAN ROBERT W II

Interim CFO

—

$233.70K (5)

−$233.70K

7,089

0.0144%

$9.09M

−12.0%

Individual transactions

Nothing of that kind in this period.

What was left out

Form 4 filings counted 89

Amendments (4/A) skipped 0

Filings about a different issuer 0

Unreadable filings 0

Joint filings 0

Sales on a Rule 10b5-1 plan 185

Sales straight out of an exercise 0

Sales at will 139

Transactions with no price 0

Shares from compensation/vesting 1,575,944

History held since 30 Aug 2016