Stocks · Technology · Semiconductors & Related Devices

Monolithic Power Systems

MPWR Clue Score76

United States Fiscal year ends December CIK 0001280452 Results filed 29 Oct 2026

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What the insiders did Net selling

By person

12 insiders · 290 transactions

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Michael Hsing

CEO

—

$354.79M (89)

−$354.79M

964,129

1.96%

$1.31B

−4.3%

Saria Tseng

EVP & General Counsel

—

$132.34M (62)

−$132.34M

146,218

0.2975%

$198.41M

−9.5%

Maurice Sciammas

EVP, WW Sales & Marketing

—

$101.19M (60)

−$101.19M

270,512

0.5505%

$367.07M

+5.6%

Deming Xiao

EVP, Global Operations

—

$76.43M (5)

−$76.43M

210,295

0.4279%

$285.36M

+26.3%

Theodore Blegen

EVP and CFO

—

$34.38M (43)

−$34.38M

82,353

0.1676%

$111.75M

+45.2%

Eugen J Elmiger

Director

—

$19.02M (9)

−$19.02M

5,402

0.0110%

$7.33M

−74.1%

Jeff Zhou

Director

—

$3.25M (4)

−$3.25M

3,800

0.0077%

$5.16M

−37.4%

Victor K Lee

Director

—

$2.00M (8) scheduled

−$2.00M

27,756

0.0565%

$37.66M

−5.0%

Eileen Wynne

Director

—

$530.20K (1)

−$530.20K

1,007

0.0020%

$1.37M

+23.1%

Kuo Wei Herbert Chang

Director

—

$312.17K (4)

−$312.17K

515

0.0010%

$698.82K

−4.8%

Robert W Dean II

Interim CFO

—

$233.70K (5)

−$233.70K

7,089

0.0144%

$9.62M

−12.0%

Carintia Martinez

Director

—

—

—

1,067

0.0022%

$1.45M

−45.1%