InsiderClue
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

Individual transactions

98
Insider
Date
Role
Action
Shares
Price
Amount
Kuo Wei Herbert Chang
24 Aug 2026
Director
Sell
50
$1,281.57
$64.08K
Robert W Dean II
24 Aug 2026
Interim CFO
Sell
32
$1,297.72
$41.53K
Robert W Dean II
17 Aug 2026
Interim CFO
Sell
6
$1,413.64
$8.48K
Kuo Wei Herbert Chang
11 Aug 2026
Director
Sell
50
$1,420.00
$71.00K
Robert W Dean II
5 Aug 2026
Interim CFO
Sell
105
$1,344.27
$141.15K
Saria Tseng
27 May 2026
EVP & General Counsel
Sell
7,565
$1,700.00
$12.86M
Jeff Zhou
26 May 2026
Director
Sell
486
$1,680.00
$816.48K
Robert W Dean II
26 May 2026
Interim CFO
Sell
22
$1,649.56
$36.29K
Saria Tseng
22 May 2026
EVP & General Counsel
Sell
5,000
$1,586.43
$7.93M
Robert W Dean II
18 May 2026
Interim CFO
Sell
4
$1,563.28
$6.25K
Michael Hsing
18 May 2026
CEO
Sell
130
$1,521.43
$197.79K
Michael Hsing
18 May 2026
CEO
Sell
352
$1,518.15
$534.39K
Michael Hsing
18 May 2026
CEO
Sell
551
$1,513.11
$833.72K
Michael Hsing
18 May 2026
CEO
Sell
3,769
$1,507.70
$5.68M
Michael Hsing
18 May 2026
CEO
Sell
2,929
$1,503.05
$4.40M
Michael Hsing
18 May 2026
CEO
Sell
608
$1,499.46
$911.67K
Michael Hsing
18 May 2026
CEO
Sell
862
$1,491.48
$1.29M
Michael Hsing
18 May 2026
CEO
Sell
6,688
$1,486.76
$9.94M
Michael Hsing
18 May 2026
CEO
Sell
5,737
$1,482.51
$8.51M
Michael Hsing
18 May 2026
CEO
Sell
4,082
$1,476.96
$6.03M
Michael Hsing
18 May 2026
CEO
Sell
5,049
$1,472.84
$7.44M
Michael Hsing
18 May 2026
CEO
Sell
5,819
$1,467.62
$8.54M
Michael Hsing
18 May 2026
CEO
Sell
3,424
$1,462.61
$5.01M
Jeff Zhou
6 May 2026
Director
Sell
500
$1,650.00
$825.00K
Eileen Wynne
6 May 2026
Director
Sell
335
$1,582.68
$530.20K
Deming Xiao
6 May 2026
EVP, Global Operations
Sell
907
$1,661.38
$1.51M
Deming Xiao
6 May 2026
EVP, Global Operations
Sell
11,597
$1,657.93
$19.23M
Deming Xiao
6 May 2026
EVP, Global Operations
Sell
14,167
$1,652.80
$23.42M
Deming Xiao
6 May 2026
EVP, Global Operations
Sell
3,329
$1,648.38
$5.49M
Eugen J Elmiger
6 May 2026
Director
Sell
514
$1,600.14
$822.47K
Eugen J Elmiger
6 May 2026
Director
Sell
2,619
$1,596.42
$4.18M
Eugen J Elmiger
6 May 2026
Director
Sell
1,355
$1,591.38
$2.16M
Eugen J Elmiger
6 May 2026
Director
Sell
2,587
$1,586.81
$4.11M
Eugen J Elmiger
6 May 2026
Director
Sell
1,879
$1,581.81
$2.97M
Eugen J Elmiger
6 May 2026
Director
Sell
834
$1,575.57
$1.31M
Eugen J Elmiger
6 May 2026
Director
Sell
1,078
$1,571.58
$1.69M
Eugen J Elmiger
6 May 2026
Director
Sell
814
$1,566.36
$1.28M
Eugen J Elmiger
6 May 2026
Director
Sell
320
$1,559.88
$499.16K
Maurice Sciammas
5 May 2026
EVP, WW Sales & Marketing
Sell indirect
380
$1,583.81
$601.85K
Jeff Zhou
5 May 2026
Director
Sell
500
$1,600.00
$800.00K
Jeff Zhou
5 May 2026
Director
Sell
514
$1,574.48
$809.28K
Maurice Sciammas
11 Feb 2026
EVP, WW Sales & Marketing
Sell indirect
200
$1,179.98
$236.00K
Michael Hsing
6 Feb 2026
CEO
Sell
54,923
$1,171.16
$64.32M
Theodore Blegen
6 Feb 2026
EVP and CFO
Sell
21,725
$1,171.16
$25.44M
Maurice Sciammas
6 Feb 2026
EVP, WW Sales & Marketing
Sell
22,875
$1,171.16
$26.79M
Saria Tseng
6 Feb 2026
EVP & General Counsel
Sell
22,875
$1,171.16
$26.79M
Deming Xiao
6 Feb 2026
EVP, Global Operations
Sell
22,875
$1,171.16
$26.79M
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
680
$930.48
$632.73K
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
2,238
$929.29
$2.08M
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
984
$928.60
$913.74K
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
1,845
$927.41
$1.71M
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
10,360
$926.02
$9.59M
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
1,126
$925.55
$1.04M
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
1,327
$924.32
$1.23M
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
1,200
$923.54
$1.11M
Saria Tseng
26 Nov 2025
EVP & General Counsel
Sell
240
$922.78
$221.47K
Kuo Wei Herbert Chang
25 Nov 2025
Director
Sell
100
$896.97
$89.70K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
240
$912.30
$218.95K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
324
$911.92
$295.46K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
359
$910.42
$326.84K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
556
$909.35
$505.60K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
888
$908.49
$806.74K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
10,200
$907.21
$9.25M
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
272
$906.33
$246.52K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
160
$905.32
$144.85K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
200
$904.39
$180.88K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
160
$903.54
$144.57K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
120
$902.07
$108.25K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
880
$901.58
$793.39K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
346
$900.41
$311.54K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
320
$899.37
$287.80K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
145
$898.38
$130.27K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
754
$897.54
$676.75K
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
2,066
$896.37
$1.85M
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
1,625
$895.63
$1.46M
Saria Tseng
25 Nov 2025
EVP & General Counsel
Sell
385
$894.54
$344.40K
Maurice Sciammas
24 Nov 2025
EVP, WW Sales & Marketing
Sell
3,976
$895.23
$3.56M
Kuo Wei Herbert Chang
21 Nov 2025
Director
Sell
100
$873.97
$87.40K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
731
$874.50
$639.26K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
1,146
$873.78
$1.00M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
574
$872.80
$500.99K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
220
$871.45
$191.72K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
320
$870.36
$278.52K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
1,842
$869.39
$1.60M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
723
$868.42
$627.87K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
699
$867.57
$606.43K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
339
$866.19
$293.64K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
40
$865.89
$34.64K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
160
$863.86
$138.22K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
240
$862.58
$207.02K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
810
$886.01
$717.67K
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
1,738
$885.10
$1.54M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
2,149
$884.44
$1.90M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
6,513
$883.50
$5.75M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
3,344
$882.51
$2.95M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
2,469
$881.42
$2.18M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
3,776
$880.58
$3.33M
Maurice Sciammas
19 Nov 2025
EVP, WW Sales & Marketing
Sell
1,966
$879.54
$1.73M
Showing 250 of 1,775 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 905
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 572
Sales straight out of an exercise 4
Sales at will 1,199
Transactions with no price 0
Shares from compensation/vesting 6,418,151
Sales filed before the plan box existed 924
History held since 30 Oct 2006