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Monolithic Power Systems

MPWR Net selling
CIK 0001280452 #321 in the set updated 17 Sep 2026
Bought (120 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$2.23B
$467.91M on a plan · $568.86K straight out of an exercise
Sold at will
$1.76B
1208 of 1776 sales
Net
−$2.23B
−$1.76B against sales at will

By person

13 insiders · 1,776 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Hsing Michael
CEO
—
$891.58M (375)
−$891.58M
861,088
1.75%
$1.10B
−26.5%
Tseng Saria
EVP & General Counsel
—
$369.62M (227)
−$369.62M
146,218
0.2975%
$187.39M
−46.0%
Sciammas Maurice
EVP, WW Sales & Marketing
—
$329.31M (294)
−$329.31M
162,706
0.3311%
$208.52M
−38.5%
Xiao Deming
EVP, Global Operations
—
$306.32M (165)
−$306.32M
210,295
0.4279%
$269.51M
−20.0%
BLEGEN THEODORE
EVP and CFO
—
$157.74M (483)
−$157.74M
87,684
0.1784%
$112.37M
+105.2%
Moyer James C
Director
—
$130.30M (118)
−$130.30M
348
0.0007%
$445.99K
−100.0%
Elmiger Eugen J
Director
—
$22.41M (15)
−$22.41M
5,402
0.0110%
$6.92M
−59.8%
Zhou Jeff
Director
—
$9.12M (44)
−$9.12M
3,800
0.0077%
$4.87M
−77.6%
CHANG KUO WEI HERBERT
Director
—
$5.15M (35)
−$5.15M
515
0.0010%
$660.01K
−93.7%
Lee Victor K
Director
—
$3.38M (13) scheduled
−$3.38M
27,756
0.0565%
$35.57M
+21.8%
Martinez Carintia
Director
—
$1.26M (1) scheduled
−$1.26M
1,067
0.0022%
$1.37M
—
Wynne Eileen
Director
—
$530.20K (1)
−$530.20K
1,007
0.0020%
$1.29M
—
DEAN ROBERT W II
Interim CFO
—
$233.70K (5)
−$233.70K
7,089
0.0144%
$9.09M
−12.0%

Individual transactions

0

Nothing of that kind in this period.

What was left out

Form 4 filings counted 913
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 564
Sales straight out of an exercise 4
Sales at will 1,208
Transactions with no price 0
Shares from compensation/vesting 6,462,852
Sales filed before the plan box existed 933
History held since 30 Aug 2016